diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index 0e4f1b1..d185fda 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -49,7 +49,7 @@
   So, there are 4 data structures holding processed arguments:
   - the inargs tuple (in PyCFuncPtr_call)
   - the callargs tuple (in PyCFuncPtr_call)
-  - the 'struct argguments' array
+  - the 'struct arguments' array
   - the 'void *' array
 
  */
diff --git a/Modules/_ctypes/libffi/src/powerpc/ffi_darwin.c b/Modules/_ctypes/libffi/src/powerpc/ffi_darwin.c
index 501035d..66c6a3b 100644
--- a/Modules/_ctypes/libffi/src/powerpc/ffi_darwin.c
+++ b/Modules/_ctypes/libffi/src/powerpc/ffi_darwin.c
@@ -59,24 +59,24 @@
 
    The stack layout we want looks like this:
 
-   |   Return address from ffi_call_DARWIN      |	higher addresses
+   |   Return address from ffi_call_DARWIN      |       higher addresses
    |--------------------------------------------|
-   |   Previous backchain pointer	4	|	stack pointer here
-   |--------------------------------------------|<+ <<<	on entry to
-   |   Saved r28-r31			4*4	| |	ffi_call_DARWIN
+   |   Previous backchain pointer       4       |       stack pointer here
+   |--------------------------------------------|<+ <<< on entry to
+   |   Saved r28-r31                    4*4     | |     ffi_call_DARWIN
    |--------------------------------------------| |
    |   Parameters             (at least 8*4=32) | |
    |--------------------------------------------| |
    |   Space for GPR2                   4       | |
-   |--------------------------------------------| |	stack	|
-   |   Reserved                       2*4       | |	grows	|
-   |--------------------------------------------| |	down	V
-   |   Space for callee's LR		4	| |
-   |--------------------------------------------| |	lower addresses
+   |--------------------------------------------| |     stack   |
+   |   Reserved                       2*4       | |     grows   |
+   |--------------------------------------------| |     down    V
+   |   Space for callee's LR            4       | |
+   |--------------------------------------------| |     lower addresses
    |   Saved CR                         4       | |
    |--------------------------------------------| |     stack pointer here
-   |   Current backchain pointer	4	|-/	during
-   |--------------------------------------------|   <<<	ffi_call_DARWIN
+   |   Current backchain pointer        4       |-/     during
+   |--------------------------------------------|   <<< ffi_call_DARWIN
 
    */
 
@@ -123,106 +123,106 @@
        i--, ptr++, p_argv++)
     {
       switch ((*ptr)->type)
-	{
-	/* If a floating-point parameter appears before all of the general-
-	   purpose registers are filled, the corresponding GPRs that match
-	   the size of the floating-point parameter are skipped.  */
-	case FFI_TYPE_FLOAT:
-	  double_tmp = *(float *)*p_argv;
-	  if (fparg_count >= NUM_FPR_ARG_REGISTERS)
-	    *(double *)next_arg = double_tmp;
-	  else
-	    *fpr_base++ = double_tmp;
-	  next_arg++;
-	  fparg_count++;
-	  FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
-	  break;
+        {
+        /* If a floating-point parameter appears before all of the general-
+           purpose registers are filled, the corresponding GPRs that match
+           the size of the floating-point parameter are skipped.  */
+        case FFI_TYPE_FLOAT:
+          double_tmp = *(float *)*p_argv;
+          if (fparg_count >= NUM_FPR_ARG_REGISTERS)
+            *(double *)next_arg = double_tmp;
+          else
+            *fpr_base++ = double_tmp;
+          next_arg++;
+          fparg_count++;
+          FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
+          break;
 
-	case FFI_TYPE_DOUBLE:
-	  double_tmp = *(double *)*p_argv;
-	  if (fparg_count >= NUM_FPR_ARG_REGISTERS)
-	    *(double *)next_arg = double_tmp;
-	  else
-	    *fpr_base++ = double_tmp;
-	  next_arg += 2;
-	  fparg_count++;
-	  FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
-	  break;
+        case FFI_TYPE_DOUBLE:
+          double_tmp = *(double *)*p_argv;
+          if (fparg_count >= NUM_FPR_ARG_REGISTERS)
+            *(double *)next_arg = double_tmp;
+          else
+            *fpr_base++ = double_tmp;
+          next_arg += 2;
+          fparg_count++;
+          FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
+          break;
 
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 
-	case FFI_TYPE_LONGDOUBLE:
-	  double_tmp = ((double *)*p_argv)[0];
-	  if (fparg_count >= NUM_FPR_ARG_REGISTERS)
-	    *(double *)next_arg = double_tmp;
-	  else
-	    *fpr_base++ = double_tmp;
-	  next_arg += 2;
-	  fparg_count++;
-	  double_tmp = ((double *)*p_argv)[1];
-	  if (fparg_count >= NUM_FPR_ARG_REGISTERS)
-	    *(double *)next_arg = double_tmp;
-	  else
-	    *fpr_base++ = double_tmp;
-	  next_arg += 2;
-	  fparg_count++;
-	  FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
-	  break;
+        case FFI_TYPE_LONGDOUBLE:
+          double_tmp = ((double *)*p_argv)[0];
+          if (fparg_count >= NUM_FPR_ARG_REGISTERS)
+            *(double *)next_arg = double_tmp;
+          else
+            *fpr_base++ = double_tmp;
+          next_arg += 2;
+          fparg_count++;
+          double_tmp = ((double *)*p_argv)[1];
+          if (fparg_count >= NUM_FPR_ARG_REGISTERS)
+            *(double *)next_arg = double_tmp;
+          else
+            *fpr_base++ = double_tmp;
+          next_arg += 2;
+          fparg_count++;
+          FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
+          break;
 #endif
-	case FFI_TYPE_UINT64:
-	case FFI_TYPE_SINT64:
-	  *(long long *)next_arg = *(long long *)*p_argv;
-	  next_arg+=2;
-	  break;
-	case FFI_TYPE_UINT8:
-	  gprvalue = *(unsigned char *)*p_argv;
-	  goto putgpr;
-	case FFI_TYPE_SINT8:
-	  gprvalue = *(signed char *)*p_argv;
-	  goto putgpr;
-	case FFI_TYPE_UINT16:
-	  gprvalue = *(unsigned short *)*p_argv;
-	  goto putgpr;
-	case FFI_TYPE_SINT16:
-	  gprvalue = *(signed short *)*p_argv;
-	  goto putgpr;
+        case FFI_TYPE_UINT64:
+        case FFI_TYPE_SINT64:
+          *(long long *)next_arg = *(long long *)*p_argv;
+          next_arg+=2;
+          break;
+        case FFI_TYPE_UINT8:
+          gprvalue = *(unsigned char *)*p_argv;
+          goto putgpr;
+        case FFI_TYPE_SINT8:
+          gprvalue = *(signed char *)*p_argv;
+          goto putgpr;
+        case FFI_TYPE_UINT16:
+          gprvalue = *(unsigned short *)*p_argv;
+          goto putgpr;
+        case FFI_TYPE_SINT16:
+          gprvalue = *(signed short *)*p_argv;
+          goto putgpr;
 
-	case FFI_TYPE_STRUCT:
-	  dest_cpy = (char *) next_arg;
+        case FFI_TYPE_STRUCT:
+          dest_cpy = (char *) next_arg;
 
-	  /* Structures that match the basic modes (QI 1 byte, HI 2 bytes,
-	     SI 4 bytes) are aligned as if they were those modes.
-	     Structures with 3 byte in size are padded upwards.  */
-	  size_al = (*ptr)->size;
-	  /* If the first member of the struct is a double, then align
-	     the struct to double-word.
-	     Type 3 is defined in include/ffi.h. #define FFI_TYPE_DOUBLE 3.  */
-	  if ((*ptr)->elements[0]->type == 3)
-	    size_al = ALIGN((*ptr)->size, 8);
-	  if (size_al < 3 && ecif->cif->abi == FFI_DARWIN)
-	    dest_cpy += 4 - size_al;
+          /* Structures that match the basic modes (QI 1 byte, HI 2 bytes,
+             SI 4 bytes) are aligned as if they were those modes.
+             Structures with 3 byte in size are padded upwards.  */
+          size_al = (*ptr)->size;
+          /* If the first member of the struct is a double, then align
+             the struct to double-word.
+             Type 3 is defined in include/ffi.h. #define FFI_TYPE_DOUBLE 3.  */
+          if ((*ptr)->elements[0]->type == 3)
+            size_al = ALIGN((*ptr)->size, 8);
+          if (size_al < 3 && ecif->cif->abi == FFI_DARWIN)
+            dest_cpy += 4 - size_al;
 
-	  memcpy((char *)dest_cpy, (char *)*p_argv, size_al);
-	  next_arg += (size_al + 3) / 4;
-	  break;
+          memcpy((char *)dest_cpy, (char *)*p_argv, size_al);
+          next_arg += (size_al + 3) / 4;
+          break;
 
-	case FFI_TYPE_INT:
-	case FFI_TYPE_UINT32:
-	case FFI_TYPE_SINT32:
-	case FFI_TYPE_POINTER:
-	  gprvalue = *(unsigned *)*p_argv;
-	putgpr:
-	  *next_arg++ = gprvalue;
-	  break;
-	default:
-	  break;
-	}
+        case FFI_TYPE_INT:
+        case FFI_TYPE_UINT32:
+        case FFI_TYPE_SINT32:
+        case FFI_TYPE_POINTER:
+          gprvalue = *(unsigned *)*p_argv;
+        putgpr:
+          *next_arg++ = gprvalue;
+          break;
+        default:
+          break;
+        }
     }
 
   /* Check that we didn't overrun the stack...  */
   //FFI_ASSERT(gpr_base <= stacktop - ASM_NEEDS_REGISTERS);
   //FFI_ASSERT((unsigned *)fpr_base
-  //	     <= stacktop - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS);
+  //         <= stacktop - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS);
   //FFI_ASSERT(flags & FLAG_4_GPR_ARGUMENTS || intarg_count <= 4);
 }
 
@@ -246,15 +246,15 @@
       p = s->elements[i];
       darwin_adjust_aggregate_sizes (p);
       if (i == 0
-	  && (p->type == FFI_TYPE_UINT64
-	      || p->type == FFI_TYPE_SINT64
-	      || p->type == FFI_TYPE_DOUBLE
-	      || p->alignment == 8))
-	align = 8;
+          && (p->type == FFI_TYPE_UINT64
+              || p->type == FFI_TYPE_SINT64
+              || p->type == FFI_TYPE_DOUBLE
+              || p->alignment == 8))
+        align = 8;
       else if (p->alignment == 16 || p->alignment < 4)
-	align = p->alignment;
+        align = p->alignment;
       else
-	align = 4;
+        align = 4;
       s->size = ALIGN(s->size, align) + p->size;
     }
   
@@ -287,7 +287,7 @@
     {
       darwin_adjust_aggregate_sizes (cif->rtype);
       for (i = 0; i < cif->nargs; i++)
-	darwin_adjust_aggregate_sizes (cif->arg_types[i]);
+        darwin_adjust_aggregate_sizes (cif->arg_types[i]);
     }
 
   /* Space for the frame pointer, callee's LR, CR, etc, and for
@@ -348,58 +348,58 @@
   for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
     {
       switch ((*ptr)->type)
-	{
-	case FFI_TYPE_FLOAT:
-	case FFI_TYPE_DOUBLE:
-	  fparg_count++;
-	  /* If this FP arg is going on the stack, it must be
-	     8-byte-aligned.  */
-	  if (fparg_count > NUM_FPR_ARG_REGISTERS
-	      && intarg_count%2 != 0)
-	    intarg_count++;
-	  break;
+        {
+        case FFI_TYPE_FLOAT:
+        case FFI_TYPE_DOUBLE:
+          fparg_count++;
+          /* If this FP arg is going on the stack, it must be
+             8-byte-aligned.  */
+          if (fparg_count > NUM_FPR_ARG_REGISTERS
+              && intarg_count%2 != 0)
+            intarg_count++;
+          break;
 
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 
-	case FFI_TYPE_LONGDOUBLE:
-	  fparg_count += 2;
-	  /* If this FP arg is going on the stack, it must be
-	     8-byte-aligned.  */
-	  if (fparg_count > NUM_FPR_ARG_REGISTERS
-	      && intarg_count%2 != 0)
-	    intarg_count++;
-	  intarg_count +=2;
-	  break;
+        case FFI_TYPE_LONGDOUBLE:
+          fparg_count += 2;
+          /* If this FP arg is going on the stack, it must be
+             8-byte-aligned.  */
+          if (fparg_count > NUM_FPR_ARG_REGISTERS
+              && intarg_count%2 != 0)
+            intarg_count++;
+          intarg_count +=2;
+          break;
 #endif
 
-	case FFI_TYPE_UINT64:
-	case FFI_TYPE_SINT64:
-	  /* 'long long' arguments are passed as two words, but
-	     either both words must fit in registers or both go
-	     on the stack.  If they go on the stack, they must
-	     be 8-byte-aligned.  */
-	  if (intarg_count == NUM_GPR_ARG_REGISTERS-1
-	      || (intarg_count >= NUM_GPR_ARG_REGISTERS && intarg_count%2 != 0))
-	    intarg_count++;
-	  intarg_count += 2;
-	  break;
+        case FFI_TYPE_UINT64:
+        case FFI_TYPE_SINT64:
+          /* 'long long' arguments are passed as two words, but
+             either both words must fit in registers or both go
+             on the stack.  If they go on the stack, they must
+             be 8-byte-aligned.  */
+          if (intarg_count == NUM_GPR_ARG_REGISTERS-1
+              || (intarg_count >= NUM_GPR_ARG_REGISTERS && intarg_count%2 != 0))
+            intarg_count++;
+          intarg_count += 2;
+          break;
 
-	case FFI_TYPE_STRUCT:
-	  size_al = (*ptr)->size;
-	  /* If the first member of the struct is a double, then align
-	     the struct to double-word.
-	     Type 3 is defined in include/ffi.h. #define FFI_TYPE_DOUBLE 3.  */
-	  if ((*ptr)->elements[0]->type == 3)
-	    size_al = ALIGN((*ptr)->size, 8);
-	  intarg_count += (size_al + 3) / 4;
-	  break;
+        case FFI_TYPE_STRUCT:
+          size_al = (*ptr)->size;
+          /* If the first member of the struct is a double, then align
+             the struct to double-word.
+             Type 3 is defined in include/ffi.h. #define FFI_TYPE_DOUBLE 3.  */
+          if ((*ptr)->elements[0]->type == 3)
+            size_al = ALIGN((*ptr)->size, 8);
+          intarg_count += (size_al + 3) / 4;
+          break;
 
-	default:
-	  /* Everything else is passed as a 4-byte word in a GPR, either
-	     the object itself or a pointer to it.  */
-	  intarg_count++;
-	  break;
-	}
+        default:
+          /* Everything else is passed as a 4-byte word in a GPR, either
+             the object itself or a pointer to it.  */
+          intarg_count++;
+          break;
+        }
     }
 
   if (fparg_count != 0)
@@ -425,9 +425,9 @@
 }
 
 extern void ffi_call_AIX(extended_cif *, unsigned, unsigned, unsigned *,
-			 void (*fn)(void), void (*fn2)(void));
+                         void (*fn)(void), void (*fn2)(void));
 extern void ffi_call_DARWIN(extended_cif *, unsigned, unsigned, unsigned *,
-			    void (*fn)(void), void (*fn2)(void));
+                            void (*fn)(void), void (*fn2)(void));
 
 void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
 {
@@ -451,11 +451,11 @@
     {
     case FFI_AIX:
       ffi_call_AIX(&ecif, -cif->bytes, cif->flags, ecif.rvalue, fn,
-		   ffi_prep_args);
+                   ffi_prep_args);
       break;
     case FFI_DARWIN:
       ffi_call_DARWIN(&ecif, -cif->bytes, cif->flags, ecif.rvalue, fn,
-		      ffi_prep_args);
+                      ffi_prep_args);
       break;
     default:
       FFI_ASSERT(0);
@@ -478,61 +478,61 @@
    and aix_clsoure.S
 
    SP previous -> +---------------------------------------+ <--- child frame
-		  | back chain to caller 4                |
-		  +---------------------------------------+ 4
-		  | saved CR 4                            |
-		  +---------------------------------------+ 8
-		  | saved LR 4                            |
-		  +---------------------------------------+ 12
-		  | reserved for compilers 4              |
-		  +---------------------------------------+ 16
-		  | reserved for binders 4                |
-		  +---------------------------------------+ 20
-		  | saved TOC pointer 4                   |
-		  +---------------------------------------+ 24
-		  | always reserved 8*4=32 (previous GPRs)|
-		  | according to the linkage convention   |
-		  | from AIX                              |
-		  +---------------------------------------+ 56
-		  | our FPR area 13*8=104                 |
-		  | f1                                    |
-		  | .                                     |
-		  | f13                                   |
-		  +---------------------------------------+ 160
-		  | result area 8                         |
-		  +---------------------------------------+ 168
-		  | alignement to the next multiple of 16 |
+                  | back chain to caller 4                |
+                  +---------------------------------------+ 4
+                  | saved CR 4                            |
+                  +---------------------------------------+ 8
+                  | saved LR 4                            |
+                  +---------------------------------------+ 12
+                  | reserved for compilers 4              |
+                  +---------------------------------------+ 16
+                  | reserved for binders 4                |
+                  +---------------------------------------+ 20
+                  | saved TOC pointer 4                   |
+                  +---------------------------------------+ 24
+                  | always reserved 8*4=32 (previous GPRs)|
+                  | according to the linkage convention   |
+                  | from AIX                              |
+                  +---------------------------------------+ 56
+                  | our FPR area 13*8=104                 |
+                  | f1                                    |
+                  | .                                     |
+                  | f13                                   |
+                  +---------------------------------------+ 160
+                  | result area 8                         |
+                  +---------------------------------------+ 168
+                  | alignment to the next multiple of 16  |
 SP current -->    +---------------------------------------+ 176 <- parent frame
-		  | back chain to caller 4                |
-		  +---------------------------------------+ 180
-		  | saved CR 4                            |
-		  +---------------------------------------+ 184
-		  | saved LR 4                            |
-		  +---------------------------------------+ 188
-		  | reserved for compilers 4              |
-		  +---------------------------------------+ 192
-		  | reserved for binders 4                |
-		  +---------------------------------------+ 196
-		  | saved TOC pointer 4                   |
-		  +---------------------------------------+ 200
-		  | always reserved 8*4=32  we store our  |
-		  | GPRs here                             |
-		  | r3                                    |
-		  | .                                     |
-		  | r10                                   |
-		  +---------------------------------------+ 232
-		  | overflow part                         |
-		  +---------------------------------------+ xxx
-		  | ????                                  |
-		  +---------------------------------------+ xxx
+                  | back chain to caller 4                |
+                  +---------------------------------------+ 180
+                  | saved CR 4                            |
+                  +---------------------------------------+ 184
+                  | saved LR 4                            |
+                  +---------------------------------------+ 188
+                  | reserved for compilers 4              |
+                  +---------------------------------------+ 192
+                  | reserved for binders 4                |
+                  +---------------------------------------+ 196
+                  | saved TOC pointer 4                   |
+                  +---------------------------------------+ 200
+                  | always reserved 8*4=32  we store our  |
+                  | GPRs here                             |
+                  | r3                                    |
+                  | .                                     |
+                  | r10                                   |
+                  +---------------------------------------+ 232
+                  | overflow part                         |
+                  +---------------------------------------+ xxx
+                  | ????                                  |
+                  +---------------------------------------+ xxx
 
 */
 ffi_status
 ffi_prep_closure_loc (ffi_closure* closure,
-		      ffi_cif* cif,
-		      void (*fun)(ffi_cif*, void*, void**, void*),
-		      void *user_data,
-		      void *codeloc)
+                      ffi_cif* cif,
+                      void (*fun)(ffi_cif*, void*, void**, void*),
+                      void *user_data,
+                      void *codeloc)
 {
   unsigned int *tramp;
   struct ffi_aix_trampoline_struct *tramp_aix;
@@ -592,12 +592,12 @@
 {
 #ifndef _AIX
   __asm__ volatile (
-		"dcbf 0,%0\n"
-		"\tsync\n"
-		"\ticbi 0,%0\n"
-		"\tsync\n"
-		"\tisync"
-		: : "r"(addr) : "memory");
+                "dcbf 0,%0\n"
+                "\tsync\n"
+                "\ticbi 0,%0\n"
+                "\tsync\n"
+                "\tisync"
+                : : "r"(addr) : "memory");
 #endif
 }
 
@@ -618,7 +618,7 @@
 } ffi_dblfl;
 
 int ffi_closure_helper_DARWIN (ffi_closure*, void*,
-			       unsigned long*, ffi_dblfl*);
+                               unsigned long*, ffi_dblfl*);
 
 /* Basically the trampoline invokes ffi_closure_ASM, and on
    entry, r11 holds the address of the closure.
@@ -628,7 +628,7 @@
    following helper function to do most of the work.  */
 
 int ffi_closure_helper_DARWIN (ffi_closure* closure, void * rvalue,
-			       unsigned long * pgr, ffi_dblfl * pfr)
+                               unsigned long * pgr, ffi_dblfl * pfr)
 {
   /* rvalue is the pointer to space for return value in closure assembly
      pgr is the pointer to where r3-r10 are stored in ffi_closure_ASM
@@ -675,121 +675,121 @@
   while (i < avn)
     {
       switch (arg_types[i]->type)
-	{
-	case FFI_TYPE_SINT8:
-	case FFI_TYPE_UINT8:
-	  avalue[i] = (char *) pgr + 3;
-	  ng++;
-	  pgr++;
-	  break;
+        {
+        case FFI_TYPE_SINT8:
+        case FFI_TYPE_UINT8:
+          avalue[i] = (char *) pgr + 3;
+          ng++;
+          pgr++;
+          break;
 
-	case FFI_TYPE_SINT16:
-	case FFI_TYPE_UINT16:
-	  avalue[i] = (char *) pgr + 2;
-	  ng++;
-	  pgr++;
-	  break;
+        case FFI_TYPE_SINT16:
+        case FFI_TYPE_UINT16:
+          avalue[i] = (char *) pgr + 2;
+          ng++;
+          pgr++;
+          break;
 
-	case FFI_TYPE_SINT32:
-	case FFI_TYPE_UINT32:
-	case FFI_TYPE_POINTER:
-	  avalue[i] = pgr;
-	  ng++;
-	  pgr++;
-	  break;
+        case FFI_TYPE_SINT32:
+        case FFI_TYPE_UINT32:
+        case FFI_TYPE_POINTER:
+          avalue[i] = pgr;
+          ng++;
+          pgr++;
+          break;
 
-	case FFI_TYPE_STRUCT:
-	  /* Structures that match the basic modes (QI 1 byte, HI 2 bytes,
-	     SI 4 bytes) are aligned as if they were those modes.  */
-	  size_al = arg_types[i]->size;
-	  /* If the first member of the struct is a double, then align
-	     the struct to double-word.
-	     Type 3 is defined in include/ffi.h. #define FFI_TYPE_DOUBLE 3.  */
-	  if (arg_types[i]->elements[0]->type == 3)
-	    size_al = ALIGN(arg_types[i]->size, 8);
-	  if (size_al < 3 && cif->abi == FFI_DARWIN)
-	    avalue[i] = (void*) pgr + 4 - size_al;
-	  else
-	    avalue[i] = (void*) pgr;
-	  ng += (size_al + 3) / 4;
-	  pgr += (size_al + 3) / 4;
-	  break;
+        case FFI_TYPE_STRUCT:
+          /* Structures that match the basic modes (QI 1 byte, HI 2 bytes,
+             SI 4 bytes) are aligned as if they were those modes.  */
+          size_al = arg_types[i]->size;
+          /* If the first member of the struct is a double, then align
+             the struct to double-word.
+             Type 3 is defined in include/ffi.h. #define FFI_TYPE_DOUBLE 3.  */
+          if (arg_types[i]->elements[0]->type == 3)
+            size_al = ALIGN(arg_types[i]->size, 8);
+          if (size_al < 3 && cif->abi == FFI_DARWIN)
+            avalue[i] = (void*) pgr + 4 - size_al;
+          else
+            avalue[i] = (void*) pgr;
+          ng += (size_al + 3) / 4;
+          pgr += (size_al + 3) / 4;
+          break;
 
-	case FFI_TYPE_SINT64:
-	case FFI_TYPE_UINT64:
-	  /* Long long ints are passed in two gpr's.  */
-	  avalue[i] = pgr;
-	  ng += 2;
-	  pgr += 2;
-	  break;
+        case FFI_TYPE_SINT64:
+        case FFI_TYPE_UINT64:
+          /* Long long ints are passed in two gpr's.  */
+          avalue[i] = pgr;
+          ng += 2;
+          pgr += 2;
+          break;
 
-	case FFI_TYPE_FLOAT:
-	  /* A float value consumes a GPR.
-	     There are 13 64bit floating point registers.  */
-	  if (nf < NUM_FPR_ARG_REGISTERS)
-	    {
-	      temp = pfr->d;
-	      pfr->f = (float)temp;
-	      avalue[i] = pfr;
-	      pfr++;
-	    }
-	  else
-	    {
-	      avalue[i] = pgr;
-	    }
-	  nf++;
-	  ng++;
-	  pgr++;
-	  break;
+        case FFI_TYPE_FLOAT:
+          /* A float value consumes a GPR.
+             There are 13 64bit floating point registers.  */
+          if (nf < NUM_FPR_ARG_REGISTERS)
+            {
+              temp = pfr->d;
+              pfr->f = (float)temp;
+              avalue[i] = pfr;
+              pfr++;
+            }
+          else
+            {
+              avalue[i] = pgr;
+            }
+          nf++;
+          ng++;
+          pgr++;
+          break;
 
-	case FFI_TYPE_DOUBLE:
-	  /* A double value consumes two GPRs.
-	     There are 13 64bit floating point registers.  */
-	  if (nf < NUM_FPR_ARG_REGISTERS)
-	    {
-	      avalue[i] = pfr;
-	      pfr++;
-	    }
-	  else
-	    {
-	      avalue[i] = pgr;
-	    }
-	  nf++;
-	  ng += 2;
-	  pgr += 2;
-	  break;
+        case FFI_TYPE_DOUBLE:
+          /* A double value consumes two GPRs.
+             There are 13 64bit floating point registers.  */
+          if (nf < NUM_FPR_ARG_REGISTERS)
+            {
+              avalue[i] = pfr;
+              pfr++;
+            }
+          else
+            {
+              avalue[i] = pgr;
+            }
+          nf++;
+          ng += 2;
+          pgr += 2;
+          break;
 
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 
-	case FFI_TYPE_LONGDOUBLE:
-	  /* A long double value consumes four GPRs and two FPRs.
-	     There are 13 64bit floating point registers.  */
-	  if (nf < NUM_FPR_ARG_REGISTERS - 1)
-	    {
-	      avalue[i] = pfr;
-	      pfr += 2;
-	    }
-	  /* Here we have the situation where one part of the long double
-	     is stored in fpr13 and the other part is already on the stack.
-	     We use a union to pass the long double to avalue[i].  */
-	  else if (nf == NUM_FPR_ARG_REGISTERS - 1)
-	    {
-	      memcpy (&temp_ld.lb[0], pfr, sizeof(ldbits));
-	      memcpy (&temp_ld.lb[1], pgr + 2, sizeof(ldbits));
-	      avalue[i] = &temp_ld.ld;
-	    }
-	  else
-	    {
-	      avalue[i] = pgr;
-	    }
-	  nf += 2;
-	  ng += 4;
-	  pgr += 4;
-	  break;
+        case FFI_TYPE_LONGDOUBLE:
+          /* A long double value consumes four GPRs and two FPRs.
+             There are 13 64bit floating point registers.  */
+          if (nf < NUM_FPR_ARG_REGISTERS - 1)
+            {
+              avalue[i] = pfr;
+              pfr += 2;
+            }
+          /* Here we have the situation where one part of the long double
+             is stored in fpr13 and the other part is already on the stack.
+             We use a union to pass the long double to avalue[i].  */
+          else if (nf == NUM_FPR_ARG_REGISTERS - 1)
+            {
+              memcpy (&temp_ld.lb[0], pfr, sizeof(ldbits));
+              memcpy (&temp_ld.lb[1], pgr + 2, sizeof(ldbits));
+              avalue[i] = &temp_ld.ld;
+            }
+          else
+            {
+              avalue[i] = pgr;
+            }
+          nf += 2;
+          ng += 4;
+          pgr += 4;
+          break;
 #endif
-	default:
-	  FFI_ASSERT(0);
-	}
+        default:
+          FFI_ASSERT(0);
+        }
       i++;
     }
 
diff --git a/Modules/_ctypes/libffi_osx/powerpc/ppc-ffi_darwin.c b/Modules/_ctypes/libffi_osx/powerpc/ppc-ffi_darwin.c
index 8953d5f..e00f153 100644
--- a/Modules/_ctypes/libffi_osx/powerpc/ppc-ffi_darwin.c
+++ b/Modules/_ctypes/libffi_osx/powerpc/ppc-ffi_darwin.c
@@ -39,7 +39,7 @@
 
 #if 0
 #if defined(POWERPC_DARWIN)
-#include <libkern/OSCacheControl.h>	// for sys_icache_invalidate()
+#include <libkern/OSCacheControl.h>     // for sys_icache_invalidate()
 #endif
 
 #else
@@ -55,8 +55,8 @@
 // The layout of a function descriptor.  A C function pointer really
 // points to one of these.
 typedef struct aix_fd_struct {
-  void*	code_pointer;
-  void*	toc;
+  void* code_pointer;
+  void* toc;
 } aix_fd;
 
 /* ffi_prep_args is called by the assembly routine once stack space
@@ -64,241 +64,241 @@
 
    The stack layout we want looks like this:
 
-   |   Return address from ffi_call_DARWIN      |	higher addresses
+   |   Return address from ffi_call_DARWIN      |       higher addresses
    |--------------------------------------------|
-   |   Previous backchain pointer      4/8      |	    stack pointer here
+   |   Previous backchain pointer      4/8      |           stack pointer here
    |--------------------------------------------|-\ <<< on entry to
-   |   Saved r28-r31                 (4/8)*4    | |	    ffi_call_DARWIN
+   |   Saved r28-r31                 (4/8)*4    | |         ffi_call_DARWIN
    |--------------------------------------------| |
    |   Parameters      (at least 8*(4/8)=32/64) | | (176) +112 - +288
    |--------------------------------------------| |
    |   Space for GPR2                  4/8      | |
-   |--------------------------------------------| |	stack	|
-   |   Reserved						 (4/8)*2    | |	grows	|
-   |--------------------------------------------| |	down	V
+   |--------------------------------------------| |     stack   |
+   |   Reserved                                          (4/8)*2    | | grows   |
+   |--------------------------------------------| |     down    V
    |   Space for callee's LR           4/8      | |
-   |--------------------------------------------| |	lower addresses
+   |--------------------------------------------| |     lower addresses
    |   Saved CR                        4/8      | |
    |--------------------------------------------| |     stack pointer here
    |   Current backchain pointer       4/8      | |     during
    |--------------------------------------------|-/ <<< ffi_call_DARWIN
 
-	Note: ppc64 CR is saved in the low word of a long on the stack.
+        Note: ppc64 CR is saved in the low word of a long on the stack.
 */
 
 /*@-exportheader@*/
 void
 ffi_prep_args(
-	extended_cif*	inEcif,
-	unsigned *const	stack)
+        extended_cif*   inEcif,
+        unsigned *const stack)
 /*@=exportheader@*/
 {
-	/*	Copy the ecif to a local var so we can trample the arg.
-		BC note: test this with GP later for possible problems...	*/
-	volatile extended_cif*	ecif	= inEcif;
+        /*      Copy the ecif to a local var so we can trample the arg.
+                BC note: test this with GP later for possible problems...       */
+        volatile extended_cif*  ecif    = inEcif;
 
-	const unsigned bytes	= ecif->cif->bytes;
-	const unsigned flags	= ecif->cif->flags;
+        const unsigned bytes    = ecif->cif->bytes;
+        const unsigned flags    = ecif->cif->flags;
 
-	/*	Cast the stack arg from int* to long*. sizeof(long) == 4 in 32-bit mode
-		and 8 in 64-bit mode.	*/
-	unsigned long *const longStack	= (unsigned long *const)stack;
+        /*      Cast the stack arg from int* to long*. sizeof(long) == 4 in 32-bit mode
+                and 8 in 64-bit mode.   */
+        unsigned long *const longStack  = (unsigned long *const)stack;
 
-	/* 'stacktop' points at the previous backchain pointer.	*/
+        /* 'stacktop' points at the previous backchain pointer. */
 #if defined(__ppc64__)
-	//	In ppc-darwin.s, an extra 96 bytes is reserved for the linkage area,
-	//	saved registers, and an extra FPR.
-	unsigned long *const stacktop	=
-		(unsigned long *)(unsigned long)((char*)longStack + bytes + 96);
+        //      In ppc-darwin.s, an extra 96 bytes is reserved for the linkage area,
+        //      saved registers, and an extra FPR.
+        unsigned long *const stacktop   =
+                (unsigned long *)(unsigned long)((char*)longStack + bytes + 96);
 #elif defined(__ppc__)
-	unsigned long *const stacktop	= longStack + (bytes / sizeof(long));
+        unsigned long *const stacktop   = longStack + (bytes / sizeof(long));
 #else
 #error undefined architecture
 #endif
 
-	/* 'fpr_base' points at the space for fpr1, and grows upwards as
-		we use FPR registers.  */
-	double*		fpr_base = (double*)(stacktop - ASM_NEEDS_REGISTERS) -
-		NUM_FPR_ARG_REGISTERS;
+        /* 'fpr_base' points at the space for fpr1, and grows upwards as
+                we use FPR registers.  */
+        double*         fpr_base = (double*)(stacktop - ASM_NEEDS_REGISTERS) -
+                NUM_FPR_ARG_REGISTERS;
 
 #if defined(__ppc64__)
-	//	64-bit saves an extra register, and uses an extra FPR. Knock fpr_base
-	//	down a couple pegs.
-	fpr_base -= 2;
+        //      64-bit saves an extra register, and uses an extra FPR. Knock fpr_base
+        //      down a couple pegs.
+        fpr_base -= 2;
 #endif
 
-	unsigned int	fparg_count = 0;
+        unsigned int    fparg_count = 0;
 
-	/* 'next_arg' grows up as we put parameters in it.  */
-	unsigned long*	next_arg = longStack + 6; /* 6 reserved positions.  */
+        /* 'next_arg' grows up as we put parameters in it.  */
+        unsigned long*  next_arg = longStack + 6; /* 6 reserved positions.  */
 
-	int				i;
-	double			double_tmp;
-	void**			p_argv = ecif->avalue;
-	unsigned long	gprvalue;
-	ffi_type**		ptr = ecif->cif->arg_types;
+        int                             i;
+        double                  double_tmp;
+        void**                  p_argv = ecif->avalue;
+        unsigned long   gprvalue;
+        ffi_type**              ptr = ecif->cif->arg_types;
 
-	/* Check that everything starts aligned properly.  */
-	FFI_ASSERT(stack == SF_ROUND(stack));
-	FFI_ASSERT(stacktop == SF_ROUND(stacktop));
-	FFI_ASSERT(bytes == SF_ROUND(bytes));
+        /* Check that everything starts aligned properly.  */
+        FFI_ASSERT(stack == SF_ROUND(stack));
+        FFI_ASSERT(stacktop == SF_ROUND(stacktop));
+        FFI_ASSERT(bytes == SF_ROUND(bytes));
 
-	/*	Deal with return values that are actually pass-by-reference.
-		Rule:
-		Return values are referenced by r3, so r4 is the first parameter.  */
+        /*      Deal with return values that are actually pass-by-reference.
+                Rule:
+                Return values are referenced by r3, so r4 is the first parameter.  */
 
-	if (flags & FLAG_RETVAL_REFERENCE)
-		*next_arg++ = (unsigned long)(char*)ecif->rvalue;
+        if (flags & FLAG_RETVAL_REFERENCE)
+                *next_arg++ = (unsigned long)(char*)ecif->rvalue;
 
-	/* Now for the arguments.  */
-	for (i = ecif->cif->nargs; i > 0; i--, ptr++, p_argv++)
+        /* Now for the arguments.  */
+        for (i = ecif->cif->nargs; i > 0; i--, ptr++, p_argv++)
     {
-		switch ((*ptr)->type)
-		{
-			/*	If a floating-point parameter appears before all of the general-
-				purpose registers are filled, the corresponding GPRs that match
-				the size of the floating-point parameter are shadowed for the
-				benefit of vararg and pre-ANSI functions.	*/
-			case FFI_TYPE_FLOAT:
-				double_tmp = *(float*)*p_argv;
+                switch ((*ptr)->type)
+                {
+                        /*      If a floating-point parameter appears before all of the general-
+                                purpose registers are filled, the corresponding GPRs that match
+                                the size of the floating-point parameter are shadowed for the
+                                benefit of vararg and pre-ANSI functions.       */
+                        case FFI_TYPE_FLOAT:
+                                double_tmp = *(float*)*p_argv;
 
-				if (fparg_count < NUM_FPR_ARG_REGISTERS)
-					*fpr_base++ = double_tmp;
+                                if (fparg_count < NUM_FPR_ARG_REGISTERS)
+                                        *fpr_base++ = double_tmp;
 
-				*(double*)next_arg = double_tmp;
+                                *(double*)next_arg = double_tmp;
 
-				next_arg++;
-				fparg_count++;
-				FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
+                                next_arg++;
+                                fparg_count++;
+                                FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
 
-				break;
+                                break;
 
-			case FFI_TYPE_DOUBLE:
-				double_tmp = *(double*)*p_argv;
+                        case FFI_TYPE_DOUBLE:
+                                double_tmp = *(double*)*p_argv;
 
-				if (fparg_count < NUM_FPR_ARG_REGISTERS)
-					*fpr_base++ = double_tmp;
+                                if (fparg_count < NUM_FPR_ARG_REGISTERS)
+                                        *fpr_base++ = double_tmp;
 
-				*(double*)next_arg = double_tmp;
+                                *(double*)next_arg = double_tmp;
 
-				next_arg += MODE_CHOICE(2,1);
-				fparg_count++;
-				FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
+                                next_arg += MODE_CHOICE(2,1);
+                                fparg_count++;
+                                FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
 
-				break;
+                                break;
 
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-			case FFI_TYPE_LONGDOUBLE:
+                        case FFI_TYPE_LONGDOUBLE:
 #if defined(__ppc64__)
-				if (fparg_count < NUM_FPR_ARG_REGISTERS)
-					*(long double*)fpr_base	= *(long double*)*p_argv;
+                                if (fparg_count < NUM_FPR_ARG_REGISTERS)
+                                        *(long double*)fpr_base = *(long double*)*p_argv;
 #elif defined(__ppc__)
-				if (fparg_count < NUM_FPR_ARG_REGISTERS - 1)
-					*(long double*)fpr_base	= *(long double*)*p_argv;
-				else if (fparg_count == NUM_FPR_ARG_REGISTERS - 1)
-					*(double*)fpr_base	= *(double*)*p_argv;
+                                if (fparg_count < NUM_FPR_ARG_REGISTERS - 1)
+                                        *(long double*)fpr_base = *(long double*)*p_argv;
+                                else if (fparg_count == NUM_FPR_ARG_REGISTERS - 1)
+                                        *(double*)fpr_base      = *(double*)*p_argv;
 #else
 #error undefined architecture
 #endif
 
-				*(long double*)next_arg	= *(long double*)*p_argv;
-				fparg_count += 2;
-				fpr_base += 2;
-				next_arg += MODE_CHOICE(4,2);
-				FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
+                                *(long double*)next_arg = *(long double*)*p_argv;
+                                fparg_count += 2;
+                                fpr_base += 2;
+                                next_arg += MODE_CHOICE(4,2);
+                                FFI_ASSERT(flags & FLAG_FP_ARGUMENTS);
 
-				break;
-#endif	//	FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+                                break;
+#endif  //      FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 
-			case FFI_TYPE_UINT64:
-			case FFI_TYPE_SINT64:
+                        case FFI_TYPE_UINT64:
+                        case FFI_TYPE_SINT64:
 #if defined(__ppc64__)
-				gprvalue = *(long long*)*p_argv;
-				goto putgpr;
+                                gprvalue = *(long long*)*p_argv;
+                                goto putgpr;
 #elif defined(__ppc__)
-				*(long long*)next_arg = *(long long*)*p_argv;
-				next_arg += 2;
-				break;
+                                *(long long*)next_arg = *(long long*)*p_argv;
+                                next_arg += 2;
+                                break;
 #else
 #error undefined architecture
 #endif
 
-			case FFI_TYPE_POINTER:
-				gprvalue = *(unsigned long*)*p_argv;
-				goto putgpr;
+                        case FFI_TYPE_POINTER:
+                                gprvalue = *(unsigned long*)*p_argv;
+                                goto putgpr;
 
-			case FFI_TYPE_UINT8:
-				gprvalue = *(unsigned char*)*p_argv;
-				goto putgpr;
+                        case FFI_TYPE_UINT8:
+                                gprvalue = *(unsigned char*)*p_argv;
+                                goto putgpr;
 
-			case FFI_TYPE_SINT8:
-				gprvalue = *(signed char*)*p_argv;
-				goto putgpr;
+                        case FFI_TYPE_SINT8:
+                                gprvalue = *(signed char*)*p_argv;
+                                goto putgpr;
 
-			case FFI_TYPE_UINT16:
-				gprvalue = *(unsigned short*)*p_argv;
-				goto putgpr;
+                        case FFI_TYPE_UINT16:
+                                gprvalue = *(unsigned short*)*p_argv;
+                                goto putgpr;
 
-			case FFI_TYPE_SINT16:
-				gprvalue = *(signed short*)*p_argv;
-				goto putgpr;
+                        case FFI_TYPE_SINT16:
+                                gprvalue = *(signed short*)*p_argv;
+                                goto putgpr;
 
-			case FFI_TYPE_STRUCT:
-			{
+                        case FFI_TYPE_STRUCT:
+                        {
 #if defined(__ppc64__)
-				unsigned int	gprSize = 0;
-				unsigned int	fprSize = 0;
+                                unsigned int    gprSize = 0;
+                                unsigned int    fprSize = 0;
 
-				ffi64_struct_to_reg_form(*ptr, (char*)*p_argv, NULL, &fparg_count,
-					(char*)next_arg, &gprSize, (char*)fpr_base, &fprSize);
-				next_arg += gprSize / sizeof(long);
-				fpr_base += fprSize / sizeof(double);
+                                ffi64_struct_to_reg_form(*ptr, (char*)*p_argv, NULL, &fparg_count,
+                                        (char*)next_arg, &gprSize, (char*)fpr_base, &fprSize);
+                                next_arg += gprSize / sizeof(long);
+                                fpr_base += fprSize / sizeof(double);
 
 #elif defined(__ppc__)
-				char*	dest_cpy = (char*)next_arg;
+                                char*   dest_cpy = (char*)next_arg;
 
-			/*	Structures that match the basic modes (QI 1 byte, HI 2 bytes,
-				SI 4 bytes) are aligned as if they were those modes.
-				Structures with 3 byte in size are padded upwards.  */
-				unsigned size_al = (*ptr)->size;
+                        /*      Structures that match the basic modes (QI 1 byte, HI 2 bytes,
+                                SI 4 bytes) are aligned as if they were those modes.
+                                Structures with 3 byte in size are padded upwards.  */
+                                unsigned size_al = (*ptr)->size;
 
-			/*	If the first member of the struct is a double, then align
-				the struct to double-word.  */
-				if ((*ptr)->elements[0]->type == FFI_TYPE_DOUBLE)
-					size_al = ALIGN((*ptr)->size, 8);
+                        /*      If the first member of the struct is a double, then align
+                                the struct to double-word.  */
+                                if ((*ptr)->elements[0]->type == FFI_TYPE_DOUBLE)
+                                        size_al = ALIGN((*ptr)->size, 8);
 
-				if (ecif->cif->abi == FFI_DARWIN)
-				{
-					if (size_al < 3)
-						dest_cpy += 4 - size_al;
-				}
+                                if (ecif->cif->abi == FFI_DARWIN)
+                                {
+                                        if (size_al < 3)
+                                                dest_cpy += 4 - size_al;
+                                }
 
-				memcpy((char*)dest_cpy, (char*)*p_argv, size_al);
-				next_arg += (size_al + 3) / 4;
+                                memcpy((char*)dest_cpy, (char*)*p_argv, size_al);
+                                next_arg += (size_al + 3) / 4;
 #else
 #error undefined architecture
 #endif
-				break;
-			}
+                                break;
+                        }
 
-			case FFI_TYPE_INT:
-			case FFI_TYPE_UINT32:
-			case FFI_TYPE_SINT32:
-				gprvalue = *(unsigned*)*p_argv;
+                        case FFI_TYPE_INT:
+                        case FFI_TYPE_UINT32:
+                        case FFI_TYPE_SINT32:
+                                gprvalue = *(unsigned*)*p_argv;
 
 putgpr:
-				*next_arg++ = gprvalue;
-				break;
+                                *next_arg++ = gprvalue;
+                                break;
 
-			default:
-				break;
-		}
-	}
+                        default:
+                                break;
+                }
+        }
 
   /* Check that we didn't overrun the stack...  */
   //FFI_ASSERT(gpr_base <= stacktop - ASM_NEEDS_REGISTERS);
   //FFI_ASSERT((unsigned *)fpr_base
-  //	     <= stacktop - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS);
+  //         <= stacktop - ASM_NEEDS_REGISTERS - NUM_GPR_ARG_REGISTERS);
   //FFI_ASSERT(flags & FLAG_4_GPR_ARGUMENTS || intarg_count <= 4);
 }
 
@@ -306,320 +306,320 @@
 
 bool
 ffi64_struct_contains_fp(
-	const ffi_type*	inType)
+        const ffi_type* inType)
 {
-	bool			containsFP	= false;
-	unsigned int	i;
+        bool                    containsFP      = false;
+        unsigned int    i;
 
-	for (i = 0; inType->elements[i] != NULL && !containsFP; i++)
-	{
-		if (inType->elements[i]->type == FFI_TYPE_FLOAT		||
-			inType->elements[i]->type == FFI_TYPE_DOUBLE	||
-			inType->elements[i]->type == FFI_TYPE_LONGDOUBLE)
-			containsFP = true;
-		else if (inType->elements[i]->type == FFI_TYPE_STRUCT)
-			containsFP = ffi64_struct_contains_fp(inType->elements[i]);
-	}
+        for (i = 0; inType->elements[i] != NULL && !containsFP; i++)
+        {
+                if (inType->elements[i]->type == FFI_TYPE_FLOAT         ||
+                        inType->elements[i]->type == FFI_TYPE_DOUBLE    ||
+                        inType->elements[i]->type == FFI_TYPE_LONGDOUBLE)
+                        containsFP = true;
+                else if (inType->elements[i]->type == FFI_TYPE_STRUCT)
+                        containsFP = ffi64_struct_contains_fp(inType->elements[i]);
+        }
 
-	return containsFP;
+        return containsFP;
 }
 
-#endif	// defined(__ppc64__)
+#endif  // defined(__ppc64__)
 
 /* Perform machine dependent cif processing.  */
 ffi_status
 ffi_prep_cif_machdep(
-	ffi_cif*	cif)
+        ffi_cif*        cif)
 {
-	/* All this is for the DARWIN ABI.  */
-	int				i;
-	ffi_type**		ptr;
-	int				intarg_count = 0;
-	int				fparg_count = 0;
-	unsigned int	flags = 0;
-	unsigned int	size_al = 0;
+        /* All this is for the DARWIN ABI.  */
+        int                             i;
+        ffi_type**              ptr;
+        int                             intarg_count = 0;
+        int                             fparg_count = 0;
+        unsigned int    flags = 0;
+        unsigned int    size_al = 0;
 
-	/*	All the machine-independent calculation of cif->bytes will be wrong.
-		Redo the calculation for DARWIN.  */
+        /*      All the machine-independent calculation of cif->bytes will be wrong.
+                Redo the calculation for DARWIN.  */
 
-	/*	Space for the frame pointer, callee's LR, CR, etc, and for
-		the asm's temp regs.  */
-	unsigned int	bytes = (6 + ASM_NEEDS_REGISTERS) * sizeof(long);
+        /*      Space for the frame pointer, callee's LR, CR, etc, and for
+                the asm's temp regs.  */
+        unsigned int    bytes = (6 + ASM_NEEDS_REGISTERS) * sizeof(long);
 
-	/*	Return value handling.  The rules are as follows:
-		- 32-bit (or less) integer values are returned in gpr3;
-		- Structures of size <= 4 bytes also returned in gpr3;
-		- 64-bit integer values and structures between 5 and 8 bytes are
-			returned in gpr3 and gpr4;
-		- Single/double FP values are returned in fpr1;
-		- Long double FP (if not equivalent to double) values are returned in
-			fpr1 and fpr2;
-		- Larger structures values are allocated space and a pointer is passed
-			as the first argument.  */
-	switch (cif->rtype->type)
-	{
+        /*      Return value handling.  The rules are as follows:
+                - 32-bit (or less) integer values are returned in gpr3;
+                - Structures of size <= 4 bytes also returned in gpr3;
+                - 64-bit integer values and structures between 5 and 8 bytes are
+                        returned in gpr3 and gpr4;
+                - Single/double FP values are returned in fpr1;
+                - Long double FP (if not equivalent to double) values are returned in
+                        fpr1 and fpr2;
+                - Larger structures values are allocated space and a pointer is passed
+                        as the first argument.  */
+        switch (cif->rtype->type)
+        {
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-		case FFI_TYPE_LONGDOUBLE:
-			flags |= FLAG_RETURNS_128BITS;
-			flags |= FLAG_RETURNS_FP;
-			break;
-#endif	// FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+                case FFI_TYPE_LONGDOUBLE:
+                        flags |= FLAG_RETURNS_128BITS;
+                        flags |= FLAG_RETURNS_FP;
+                        break;
+#endif  // FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 
-		case FFI_TYPE_DOUBLE:
-			flags |= FLAG_RETURNS_64BITS;
-			/* Fall through.  */
-		case FFI_TYPE_FLOAT:
-			flags |= FLAG_RETURNS_FP;
-			break;
+                case FFI_TYPE_DOUBLE:
+                        flags |= FLAG_RETURNS_64BITS;
+                        /* Fall through.  */
+                case FFI_TYPE_FLOAT:
+                        flags |= FLAG_RETURNS_FP;
+                        break;
 
 #if defined(__ppc64__)
-		case FFI_TYPE_POINTER:
+                case FFI_TYPE_POINTER:
 #endif
-		case FFI_TYPE_UINT64:
-		case FFI_TYPE_SINT64:
-			flags |= FLAG_RETURNS_64BITS;
-			break;
+                case FFI_TYPE_UINT64:
+                case FFI_TYPE_SINT64:
+                        flags |= FLAG_RETURNS_64BITS;
+                        break;
 
-		case FFI_TYPE_STRUCT:
-		{
+                case FFI_TYPE_STRUCT:
+                {
 #if defined(__ppc64__)
 
-			if (ffi64_stret_needs_ptr(cif->rtype, NULL, NULL))
-			{
-				flags |= FLAG_RETVAL_REFERENCE;
-				flags |= FLAG_RETURNS_NOTHING;
-				intarg_count++;
-			}
-			else
-			{
-				flags |= FLAG_RETURNS_STRUCT;
+                        if (ffi64_stret_needs_ptr(cif->rtype, NULL, NULL))
+                        {
+                                flags |= FLAG_RETVAL_REFERENCE;
+                                flags |= FLAG_RETURNS_NOTHING;
+                                intarg_count++;
+                        }
+                        else
+                        {
+                                flags |= FLAG_RETURNS_STRUCT;
 
-				if (ffi64_struct_contains_fp(cif->rtype))
-					flags |= FLAG_STRUCT_CONTAINS_FP;
-			}
+                                if (ffi64_struct_contains_fp(cif->rtype))
+                                        flags |= FLAG_STRUCT_CONTAINS_FP;
+                        }
 
 #elif defined(__ppc__)
 
-			flags |= FLAG_RETVAL_REFERENCE;
-			flags |= FLAG_RETURNS_NOTHING;
-			intarg_count++;
+                        flags |= FLAG_RETVAL_REFERENCE;
+                        flags |= FLAG_RETURNS_NOTHING;
+                        intarg_count++;
 
 #else
 #error undefined architecture
 #endif
-			break;
-		}
+                        break;
+                }
 
-		case FFI_TYPE_VOID:
-			flags |= FLAG_RETURNS_NOTHING;
-			break;
+                case FFI_TYPE_VOID:
+                        flags |= FLAG_RETURNS_NOTHING;
+                        break;
 
-		default:
-			/* Returns 32-bit integer, or similar.  Nothing to do here.  */
-			break;
-	}
+                default:
+                        /* Returns 32-bit integer, or similar.  Nothing to do here.  */
+                        break;
+        }
 
-	/*	The first NUM_GPR_ARG_REGISTERS words of integer arguments, and the
-		first NUM_FPR_ARG_REGISTERS fp arguments, go in registers; the rest
-		goes on the stack.  Structures are passed as a pointer to a copy of
-		the structure. Stuff on the stack needs to keep proper alignment.  */
-	for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
-	{
-		switch ((*ptr)->type)
-		{
-			case FFI_TYPE_FLOAT:
-			case FFI_TYPE_DOUBLE:
-				fparg_count++;
-				/*	If this FP arg is going on the stack, it must be
-					8-byte-aligned.  */
-				if (fparg_count > NUM_FPR_ARG_REGISTERS
-					&& intarg_count % 2 != 0)
-					intarg_count++;
-				break;
+        /*      The first NUM_GPR_ARG_REGISTERS words of integer arguments, and the
+                first NUM_FPR_ARG_REGISTERS fp arguments, go in registers; the rest
+                goes on the stack.  Structures are passed as a pointer to a copy of
+                the structure. Stuff on the stack needs to keep proper alignment.  */
+        for (ptr = cif->arg_types, i = cif->nargs; i > 0; i--, ptr++)
+        {
+                switch ((*ptr)->type)
+                {
+                        case FFI_TYPE_FLOAT:
+                        case FFI_TYPE_DOUBLE:
+                                fparg_count++;
+                                /*      If this FP arg is going on the stack, it must be
+                                        8-byte-aligned.  */
+                                if (fparg_count > NUM_FPR_ARG_REGISTERS
+                                        && intarg_count % 2 != 0)
+                                        intarg_count++;
+                                break;
 
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
-			case FFI_TYPE_LONGDOUBLE:
-				fparg_count += 2;
-				/*	If this FP arg is going on the stack, it must be
-					8-byte-aligned.  */
+                        case FFI_TYPE_LONGDOUBLE:
+                                fparg_count += 2;
+                                /*      If this FP arg is going on the stack, it must be
+                                        8-byte-aligned.  */
 
-				if (
+                                if (
 #if defined(__ppc64__)
-					fparg_count > NUM_FPR_ARG_REGISTERS + 1
+                                        fparg_count > NUM_FPR_ARG_REGISTERS + 1
 #elif defined(__ppc__)
-					fparg_count > NUM_FPR_ARG_REGISTERS
+                                        fparg_count > NUM_FPR_ARG_REGISTERS
 #else
 #error undefined architecture
 #endif
-					&& intarg_count % 2 != 0)
-					intarg_count++;
+                                        && intarg_count % 2 != 0)
+                                        intarg_count++;
 
-				intarg_count += 2;
-				break;
-#endif	// FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
+                                intarg_count += 2;
+                                break;
+#endif  // FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 
-			case FFI_TYPE_UINT64:
-			case FFI_TYPE_SINT64:
-				/*	'long long' arguments are passed as two words, but
-					either both words must fit in registers or both go
-					on the stack.  If they go on the stack, they must
-					be 8-byte-aligned.  */
-				if (intarg_count == NUM_GPR_ARG_REGISTERS - 1
-					|| (intarg_count >= NUM_GPR_ARG_REGISTERS
-					&& intarg_count % 2 != 0))
-					intarg_count++;
+                        case FFI_TYPE_UINT64:
+                        case FFI_TYPE_SINT64:
+                                /*      'long long' arguments are passed as two words, but
+                                        either both words must fit in registers or both go
+                                        on the stack.  If they go on the stack, they must
+                                        be 8-byte-aligned.  */
+                                if (intarg_count == NUM_GPR_ARG_REGISTERS - 1
+                                        || (intarg_count >= NUM_GPR_ARG_REGISTERS
+                                        && intarg_count % 2 != 0))
+                                        intarg_count++;
 
-				intarg_count += MODE_CHOICE(2,1);
+                                intarg_count += MODE_CHOICE(2,1);
 
-				break;
+                                break;
 
-			case FFI_TYPE_STRUCT:
-				size_al = (*ptr)->size;
-				/*	If the first member of the struct is a double, then align
-					the struct to double-word.  */
-				if ((*ptr)->elements[0]->type == FFI_TYPE_DOUBLE)
-					size_al = ALIGN((*ptr)->size, 8);
+                        case FFI_TYPE_STRUCT:
+                                size_al = (*ptr)->size;
+                                /*      If the first member of the struct is a double, then align
+                                        the struct to double-word.  */
+                                if ((*ptr)->elements[0]->type == FFI_TYPE_DOUBLE)
+                                        size_al = ALIGN((*ptr)->size, 8);
 
 #if defined(__ppc64__)
-				// Look for FP struct members.
-				unsigned int	j;
+                                // Look for FP struct members.
+                                unsigned int    j;
 
-				for (j = 0; (*ptr)->elements[j] != NULL; j++)
-				{
-					if ((*ptr)->elements[j]->type == FFI_TYPE_FLOAT	||
-						(*ptr)->elements[j]->type == FFI_TYPE_DOUBLE)
-					{
-						fparg_count++;
+                                for (j = 0; (*ptr)->elements[j] != NULL; j++)
+                                {
+                                        if ((*ptr)->elements[j]->type == FFI_TYPE_FLOAT ||
+                                                (*ptr)->elements[j]->type == FFI_TYPE_DOUBLE)
+                                        {
+                                                fparg_count++;
 
-						if (fparg_count > NUM_FPR_ARG_REGISTERS)
-							intarg_count++;
-					}
-					else if ((*ptr)->elements[j]->type == FFI_TYPE_LONGDOUBLE)
-					{
-						fparg_count += 2;
+                                                if (fparg_count > NUM_FPR_ARG_REGISTERS)
+                                                        intarg_count++;
+                                        }
+                                        else if ((*ptr)->elements[j]->type == FFI_TYPE_LONGDOUBLE)
+                                        {
+                                                fparg_count += 2;
 
-						if (fparg_count > NUM_FPR_ARG_REGISTERS + 1)
-							intarg_count += 2;
-					}
-					else
-						intarg_count++;
-				}
+                                                if (fparg_count > NUM_FPR_ARG_REGISTERS + 1)
+                                                        intarg_count += 2;
+                                        }
+                                        else
+                                                intarg_count++;
+                                }
 #elif defined(__ppc__)
-				intarg_count += (size_al + 3) / 4;
+                                intarg_count += (size_al + 3) / 4;
 #else
 #error undefined architecture
 #endif
 
-				break;
+                                break;
 
-			default:
-				/*	Everything else is passed as a 4/8-byte word in a GPR, either
-					the object itself or a pointer to it.  */
-				intarg_count++;
-				break;
-		}
-	}
+                        default:
+                                /*      Everything else is passed as a 4/8-byte word in a GPR, either
+                                        the object itself or a pointer to it.  */
+                                intarg_count++;
+                                break;
+                }
+        }
 
-	/* Space for the FPR registers, if needed.  */
-	if (fparg_count != 0)
-	{
-		flags |= FLAG_FP_ARGUMENTS;
+        /* Space for the FPR registers, if needed.  */
+        if (fparg_count != 0)
+        {
+                flags |= FLAG_FP_ARGUMENTS;
 #if defined(__ppc64__)
-		bytes += (NUM_FPR_ARG_REGISTERS + 1) * sizeof(double);
+                bytes += (NUM_FPR_ARG_REGISTERS + 1) * sizeof(double);
 #elif defined(__ppc__)
-		bytes += NUM_FPR_ARG_REGISTERS * sizeof(double);
+                bytes += NUM_FPR_ARG_REGISTERS * sizeof(double);
 #else
 #error undefined architecture
 #endif
-	}
+        }
 
-	/* Stack space.  */
+        /* Stack space.  */
 #if defined(__ppc64__)
-	if ((intarg_count + fparg_count) > NUM_GPR_ARG_REGISTERS)
-		bytes += (intarg_count + fparg_count) * sizeof(long);
+        if ((intarg_count + fparg_count) > NUM_GPR_ARG_REGISTERS)
+                bytes += (intarg_count + fparg_count) * sizeof(long);
 #elif defined(__ppc__)
-	if ((intarg_count + 2 * fparg_count) > NUM_GPR_ARG_REGISTERS)
-		bytes += (intarg_count + 2 * fparg_count) * sizeof(long);
+        if ((intarg_count + 2 * fparg_count) > NUM_GPR_ARG_REGISTERS)
+                bytes += (intarg_count + 2 * fparg_count) * sizeof(long);
 #else
 #error undefined architecture
 #endif
-	else
-		bytes += NUM_GPR_ARG_REGISTERS * sizeof(long);
+        else
+                bytes += NUM_GPR_ARG_REGISTERS * sizeof(long);
 
-	/* The stack space allocated needs to be a multiple of 16/32 bytes.  */
-	bytes = SF_ROUND(bytes);
+        /* The stack space allocated needs to be a multiple of 16/32 bytes.  */
+        bytes = SF_ROUND(bytes);
 
-	cif->flags = flags;
-	cif->bytes = bytes;
+        cif->flags = flags;
+        cif->bytes = bytes;
 
-	return FFI_OK;
+        return FFI_OK;
 }
 
 /*@-declundef@*/
 /*@-exportheader@*/
 extern void
 ffi_call_AIX(
-/*@out@*/	extended_cif*,
-			unsigned,
-			unsigned,
-/*@out@*/	unsigned*,
-			void (*fn)(void),
-			void (*fn2)(extended_cif*, unsigned *const));
+/*@out@*/       extended_cif*,
+                        unsigned,
+                        unsigned,
+/*@out@*/       unsigned*,
+                        void (*fn)(void),
+                        void (*fn2)(extended_cif*, unsigned *const));
 
 extern void
 ffi_call_DARWIN(
-/*@out@*/	extended_cif*,
-			unsigned long,
-			unsigned,
-/*@out@*/	unsigned*,
-			void (*fn)(void),
-			void (*fn2)(extended_cif*, unsigned *const));
+/*@out@*/       extended_cif*,
+                        unsigned long,
+                        unsigned,
+/*@out@*/       unsigned*,
+                        void (*fn)(void),
+                        void (*fn2)(extended_cif*, unsigned *const));
 /*@=declundef@*/
 /*@=exportheader@*/
 
 void
 ffi_call(
-/*@dependent@*/	ffi_cif*	cif,
-				void		(*fn)(void),
-/*@out@*/		void*		rvalue,
-/*@dependent@*/	void**		avalue)
+/*@dependent@*/ ffi_cif*        cif,
+                                void            (*fn)(void),
+/*@out@*/               void*           rvalue,
+/*@dependent@*/ void**          avalue)
 {
-	extended_cif ecif;
+        extended_cif ecif;
 
-	ecif.cif = cif;
-	ecif.avalue = avalue;
+        ecif.cif = cif;
+        ecif.avalue = avalue;
 
-	/*	If the return value is a struct and we don't have a return
-		value address then we need to make one.  */
-	if ((rvalue == NULL) &&
-		(cif->rtype->type == FFI_TYPE_STRUCT))
-	{
-		/*@-sysunrecog@*/
-		ecif.rvalue = alloca(cif->rtype->size);
-		/*@=sysunrecog@*/
-	}
-	else
-		ecif.rvalue = rvalue;
+        /*      If the return value is a struct and we don't have a return
+                value address then we need to make one.  */
+        if ((rvalue == NULL) &&
+                (cif->rtype->type == FFI_TYPE_STRUCT))
+        {
+                /*@-sysunrecog@*/
+                ecif.rvalue = alloca(cif->rtype->size);
+                /*@=sysunrecog@*/
+        }
+        else
+                ecif.rvalue = rvalue;
 
-	switch (cif->abi)
-	{
-		case FFI_AIX:
-			/*@-usedef@*/
-			ffi_call_AIX(&ecif, -cif->bytes,
-				cif->flags, ecif.rvalue, fn, ffi_prep_args);
-			/*@=usedef@*/
-			break;
+        switch (cif->abi)
+        {
+                case FFI_AIX:
+                        /*@-usedef@*/
+                        ffi_call_AIX(&ecif, -cif->bytes,
+                                cif->flags, ecif.rvalue, fn, ffi_prep_args);
+                        /*@=usedef@*/
+                        break;
 
-		case FFI_DARWIN:
-			/*@-usedef@*/
-			ffi_call_DARWIN(&ecif, -(long)cif->bytes,
-				cif->flags, ecif.rvalue, fn, ffi_prep_args);
-			/*@=usedef@*/
-			break;
+                case FFI_DARWIN:
+                        /*@-usedef@*/
+                        ffi_call_DARWIN(&ecif, -(long)cif->bytes,
+                                cif->flags, ecif.rvalue, fn, ffi_prep_args);
+                        /*@=usedef@*/
+                        break;
 
-		default:
-			FFI_ASSERT(0);
-			break;
+                default:
+                        FFI_ASSERT(0);
+                        break;
     }
 }
 
@@ -627,53 +627,53 @@
    and aix_clsoure.S
 
    SP previous -> +---------------------------------------+ <--- child frame
-		  | back chain to caller 4                |
-		  +---------------------------------------+ 4
-		  | saved CR 4                            |
-		  +---------------------------------------+ 8
-		  | saved LR 4                            |
-		  +---------------------------------------+ 12
-		  | reserved for compilers 4              |
-		  +---------------------------------------+ 16
-		  | reserved for binders 4                |
-		  +---------------------------------------+ 20
-		  | saved TOC pointer 4                   |
-		  +---------------------------------------+ 24
-		  | always reserved 8*4=32 (previous GPRs)|
-		  | according to the linkage convention   |
-		  | from AIX                              |
-		  +---------------------------------------+ 56
-		  | our FPR area 13*8=104                 |
-		  | f1                                    |
-		  | .                                     |
-		  | f13                                   |
-		  +---------------------------------------+ 160
-		  | result area 8                         |
-		  +---------------------------------------+ 168
-		  | alignement to the next multiple of 16 |
+                  | back chain to caller 4                |
+                  +---------------------------------------+ 4
+                  | saved CR 4                            |
+                  +---------------------------------------+ 8
+                  | saved LR 4                            |
+                  +---------------------------------------+ 12
+                  | reserved for compilers 4              |
+                  +---------------------------------------+ 16
+                  | reserved for binders 4                |
+                  +---------------------------------------+ 20
+                  | saved TOC pointer 4                   |
+                  +---------------------------------------+ 24
+                  | always reserved 8*4=32 (previous GPRs)|
+                  | according to the linkage convention   |
+                  | from AIX                              |
+                  +---------------------------------------+ 56
+                  | our FPR area 13*8=104                 |
+                  | f1                                    |
+                  | .                                     |
+                  | f13                                   |
+                  +---------------------------------------+ 160
+                  | result area 8                         |
+                  +---------------------------------------+ 168
+                  | alignment to the next multiple of 16  |
 SP current -->    +---------------------------------------+ 176 <- parent frame
-		  | back chain to caller 4                |
-		  +---------------------------------------+ 180
-		  | saved CR 4                            |
-		  +---------------------------------------+ 184
-		  | saved LR 4                            |
-		  +---------------------------------------+ 188
-		  | reserved for compilers 4              |
-		  +---------------------------------------+ 192
-		  | reserved for binders 4                |
-		  +---------------------------------------+ 196
-		  | saved TOC pointer 4                   |
-		  +---------------------------------------+ 200
-		  | always reserved 8*4=32  we store our  |
-		  | GPRs here                             |
-		  | r3                                    |
-		  | .                                     |
-		  | r10                                   |
-		  +---------------------------------------+ 232
-		  | overflow part                         |
-		  +---------------------------------------+ xxx
-		  | ????                                  |
-		  +---------------------------------------+ xxx
+                  | back chain to caller 4                |
+                  +---------------------------------------+ 180
+                  | saved CR 4                            |
+                  +---------------------------------------+ 184
+                  | saved LR 4                            |
+                  +---------------------------------------+ 188
+                  | reserved for compilers 4              |
+                  +---------------------------------------+ 192
+                  | reserved for binders 4                |
+                  +---------------------------------------+ 196
+                  | saved TOC pointer 4                   |
+                  +---------------------------------------+ 200
+                  | always reserved 8*4=32  we store our  |
+                  | GPRs here                             |
+                  | r3                                    |
+                  | .                                     |
+                  | r10                                   |
+                  +---------------------------------------+ 232
+                  | overflow part                         |
+                  +---------------------------------------+ xxx
+                  | ????                                  |
+                  +---------------------------------------+ xxx
 */
 
 #if !defined(POWERPC_DARWIN)
@@ -682,1095 +682,1095 @@
 
 static void
 flush_icache(
-	char*	addr)
+        char*   addr)
 {
 #ifndef _AIX
-	__asm__ volatile (
-		"dcbf 0,%0\n"
-		"sync\n"
-		"icbi 0,%0\n"
-		"sync\n"
-		"isync"
-		: : "r" (addr) : "memory");
+        __asm__ volatile (
+                "dcbf 0,%0\n"
+                "sync\n"
+                "icbi 0,%0\n"
+                "sync\n"
+                "isync"
+                : : "r" (addr) : "memory");
 #endif
 }
 
 static void
 flush_range(
-	char*	addr,
-	int		size)
+        char*   addr,
+        int             size)
 {
-	int i;
+        int i;
 
-	for (i = 0; i < size; i += MIN_LINE_SIZE)
-		flush_icache(addr + i);
+        for (i = 0; i < size; i += MIN_LINE_SIZE)
+                flush_icache(addr + i);
 
-	flush_icache(addr + size - 1);
+        flush_icache(addr + size - 1);
 }
 
-#endif	// !defined(POWERPC_DARWIN)
+#endif  // !defined(POWERPC_DARWIN)
 
 ffi_status
 ffi_prep_closure(
-	ffi_closure*	closure,
-	ffi_cif*		cif,
-	void			(*fun)(ffi_cif*, void*, void**, void*),
-	void*			user_data)
+        ffi_closure*    closure,
+        ffi_cif*                cif,
+        void                    (*fun)(ffi_cif*, void*, void**, void*),
+        void*                   user_data)
 {
-	switch (cif->abi)
-	{
-		case FFI_DARWIN:
-		{
-			FFI_ASSERT (cif->abi == FFI_DARWIN);
+        switch (cif->abi)
+        {
+                case FFI_DARWIN:
+                {
+                        FFI_ASSERT (cif->abi == FFI_DARWIN);
 
-			unsigned int*	tramp = (unsigned int*)&closure->tramp[0];
+                        unsigned int*   tramp = (unsigned int*)&closure->tramp[0];
 
 #if defined(__ppc64__)
-			tramp[0] = 0x7c0802a6;	//	mflr	r0
-			tramp[1] = 0x429f0005;	//	bcl		20,31,+0x8
-			tramp[2] = 0x7d6802a6;	//	mflr	r11
-			tramp[3] = 0x7c0803a6;	//	mtlr	r0
-			tramp[4] = 0xe98b0018;	//	ld		r12,24(r11)
-			tramp[5] = 0x7d8903a6;	//	mtctr	r12
-			tramp[6] = 0xe96b0020;	//	ld		r11,32(r11)
-			tramp[7] = 0x4e800420;	//	bctr
-			*(unsigned long*)&tramp[8] = (unsigned long)ffi_closure_ASM;
-			*(unsigned long*)&tramp[10] = (unsigned long)closure;
+                        tramp[0] = 0x7c0802a6;  //      mflr    r0
+                        tramp[1] = 0x429f0005;  //      bcl             20,31,+0x8
+                        tramp[2] = 0x7d6802a6;  //      mflr    r11
+                        tramp[3] = 0x7c0803a6;  //      mtlr    r0
+                        tramp[4] = 0xe98b0018;  //      ld              r12,24(r11)
+                        tramp[5] = 0x7d8903a6;  //      mtctr   r12
+                        tramp[6] = 0xe96b0020;  //      ld              r11,32(r11)
+                        tramp[7] = 0x4e800420;  //      bctr
+                        *(unsigned long*)&tramp[8] = (unsigned long)ffi_closure_ASM;
+                        *(unsigned long*)&tramp[10] = (unsigned long)closure;
 #elif defined(__ppc__)
-			tramp[0] = 0x7c0802a6;	//	mflr	r0
-			tramp[1] = 0x429f0005;	//	bcl		20,31,+0x8
-			tramp[2] = 0x7d6802a6;	//	mflr	r11
-			tramp[3] = 0x7c0803a6;	//	mtlr	r0
-			tramp[4] = 0x818b0018;	//	lwz		r12,24(r11)
-			tramp[5] = 0x7d8903a6;	//	mtctr	r12
-			tramp[6] = 0x816b001c;	//	lwz		r11,28(r11)
-			tramp[7] = 0x4e800420;	//	bctr
-			tramp[8] = (unsigned long)ffi_closure_ASM;
-			tramp[9] = (unsigned long)closure;
+                        tramp[0] = 0x7c0802a6;  //      mflr    r0
+                        tramp[1] = 0x429f0005;  //      bcl             20,31,+0x8
+                        tramp[2] = 0x7d6802a6;  //      mflr    r11
+                        tramp[3] = 0x7c0803a6;  //      mtlr    r0
+                        tramp[4] = 0x818b0018;  //      lwz             r12,24(r11)
+                        tramp[5] = 0x7d8903a6;  //      mtctr   r12
+                        tramp[6] = 0x816b001c;  //      lwz             r11,28(r11)
+                        tramp[7] = 0x4e800420;  //      bctr
+                        tramp[8] = (unsigned long)ffi_closure_ASM;
+                        tramp[9] = (unsigned long)closure;
 #else
 #error undefined architecture
 #endif
 
-			closure->cif = cif;
-			closure->fun = fun;
-			closure->user_data = user_data;
+                        closure->cif = cif;
+                        closure->fun = fun;
+                        closure->user_data = user_data;
 
-			// Flush the icache. Only necessary on Darwin.
+                        // Flush the icache. Only necessary on Darwin.
 #if defined(POWERPC_DARWIN)
-			sys_icache_invalidate(closure->tramp, FFI_TRAMPOLINE_SIZE);
+                        sys_icache_invalidate(closure->tramp, FFI_TRAMPOLINE_SIZE);
 #else
-			flush_range(closure->tramp, FFI_TRAMPOLINE_SIZE);
+                        flush_range(closure->tramp, FFI_TRAMPOLINE_SIZE);
 #endif
 
-			break;
-		}
+                        break;
+                }
 
-		case FFI_AIX:
-		{
-			FFI_ASSERT (cif->abi == FFI_AIX);
+                case FFI_AIX:
+                {
+                        FFI_ASSERT (cif->abi == FFI_AIX);
 
-			ffi_aix_trampoline_struct*	tramp_aix =
-				(ffi_aix_trampoline_struct*)(closure->tramp);
-			aix_fd*	fd = (aix_fd*)(void*)ffi_closure_ASM;
+                        ffi_aix_trampoline_struct*      tramp_aix =
+                                (ffi_aix_trampoline_struct*)(closure->tramp);
+                        aix_fd* fd = (aix_fd*)(void*)ffi_closure_ASM;
 
-			tramp_aix->code_pointer = fd->code_pointer;
-			tramp_aix->toc = fd->toc;
-			tramp_aix->static_chain = closure;
-			closure->cif = cif;
-			closure->fun = fun;
-			closure->user_data = user_data;
-			break;
-		}
+                        tramp_aix->code_pointer = fd->code_pointer;
+                        tramp_aix->toc = fd->toc;
+                        tramp_aix->static_chain = closure;
+                        closure->cif = cif;
+                        closure->fun = fun;
+                        closure->user_data = user_data;
+                        break;
+                }
 
-		default:
-			return FFI_BAD_ABI;
-	}
+                default:
+                        return FFI_BAD_ABI;
+        }
 
-	return FFI_OK;
+        return FFI_OK;
 }
 
 #if defined(__ppc__)
-	typedef double ldbits[2];
+        typedef double ldbits[2];
 
-	typedef union
-	{
-		ldbits lb;
-		long double ld;
-	} ldu;
+        typedef union
+        {
+                ldbits lb;
+                long double ld;
+        } ldu;
 #endif
 
 typedef union
 {
-	float	f;
-	double	d;
+        float   f;
+        double  d;
 } ffi_dblfl;
 
-/*	The trampoline invokes ffi_closure_ASM, and on entry, r11 holds the
-	address of the closure. After storing the registers that could possibly
-	contain parameters to be passed into the stack frame and setting up space
-	for a return value, ffi_closure_ASM invokes the following helper function
-	to do most of the work.  */
+/*      The trampoline invokes ffi_closure_ASM, and on entry, r11 holds the
+        address of the closure. After storing the registers that could possibly
+        contain parameters to be passed into the stack frame and setting up space
+        for a return value, ffi_closure_ASM invokes the following helper function
+        to do most of the work.  */
 int
 ffi_closure_helper_DARWIN(
-	ffi_closure*	closure,
-	void*			rvalue,
-	unsigned long*	pgr,
-	ffi_dblfl*		pfr)
+        ffi_closure*    closure,
+        void*                   rvalue,
+        unsigned long*  pgr,
+        ffi_dblfl*              pfr)
 {
-	/*	rvalue is the pointer to space for return value in closure assembly
-		pgr is the pointer to where r3-r10 are stored in ffi_closure_ASM
-		pfr is the pointer to where f1-f13 are stored in ffi_closure_ASM.  */
+        /*      rvalue is the pointer to space for return value in closure assembly
+                pgr is the pointer to where r3-r10 are stored in ffi_closure_ASM
+                pfr is the pointer to where f1-f13 are stored in ffi_closure_ASM.  */
 
 #if defined(__ppc__)
-	ldu	temp_ld;
+        ldu     temp_ld;
 #endif
 
-	double				temp;
-	unsigned int		i;
-	unsigned int		nf = 0;	/* number of FPRs already used.  */
-	unsigned int		ng = 0;	/* number of GPRs already used.  */
-	ffi_cif*			cif = closure->cif;
-	long				avn = cif->nargs;
-	void**				avalue = alloca(cif->nargs * sizeof(void*));
-	ffi_type**			arg_types = cif->arg_types;
+        double                          temp;
+        unsigned int            i;
+        unsigned int            nf = 0; /* number of FPRs already used.  */
+        unsigned int            ng = 0; /* number of GPRs already used.  */
+        ffi_cif*                        cif = closure->cif;
+        long                            avn = cif->nargs;
+        void**                          avalue = alloca(cif->nargs * sizeof(void*));
+        ffi_type**                      arg_types = cif->arg_types;
 
-	/*	Copy the caller's structure return value address so that the closure
-		returns the data directly to the caller.  */
+        /*      Copy the caller's structure return value address so that the closure
+                returns the data directly to the caller.  */
 #if defined(__ppc64__)
-	if (cif->rtype->type == FFI_TYPE_STRUCT &&
-		ffi64_stret_needs_ptr(cif->rtype, NULL, NULL))
+        if (cif->rtype->type == FFI_TYPE_STRUCT &&
+                ffi64_stret_needs_ptr(cif->rtype, NULL, NULL))
 #elif defined(__ppc__)
-	if (cif->rtype->type == FFI_TYPE_STRUCT)
+        if (cif->rtype->type == FFI_TYPE_STRUCT)
 #else
 #error undefined architecture
 #endif
-	{
-		rvalue = (void*)*pgr;
-		pgr++;
-		ng++;
-	}
+        {
+                rvalue = (void*)*pgr;
+                pgr++;
+                ng++;
+        }
 
-	/* Grab the addresses of the arguments from the stack frame.  */
-	for (i = 0; i < avn; i++)
-	{
-		switch (arg_types[i]->type)
-		{
-			case FFI_TYPE_SINT8:
-			case FFI_TYPE_UINT8:
-				avalue[i] = (char*)pgr + MODE_CHOICE(3,7);
-				ng++;
-				pgr++;
-				break;
+        /* Grab the addresses of the arguments from the stack frame.  */
+        for (i = 0; i < avn; i++)
+        {
+                switch (arg_types[i]->type)
+                {
+                        case FFI_TYPE_SINT8:
+                        case FFI_TYPE_UINT8:
+                                avalue[i] = (char*)pgr + MODE_CHOICE(3,7);
+                                ng++;
+                                pgr++;
+                                break;
 
-			case FFI_TYPE_SINT16:
-			case FFI_TYPE_UINT16:
-				avalue[i] = (char*)pgr + MODE_CHOICE(2,6);
-				ng++;
-				pgr++;
-				break;
+                        case FFI_TYPE_SINT16:
+                        case FFI_TYPE_UINT16:
+                                avalue[i] = (char*)pgr + MODE_CHOICE(2,6);
+                                ng++;
+                                pgr++;
+                                break;
 
 #if defined(__ppc__)
-			case FFI_TYPE_POINTER:
+                        case FFI_TYPE_POINTER:
 #endif
-			case FFI_TYPE_SINT32:
-			case FFI_TYPE_UINT32:
-				avalue[i] = (char*)pgr + MODE_CHOICE(0,4);
-				ng++;
-				pgr++;
+                        case FFI_TYPE_SINT32:
+                        case FFI_TYPE_UINT32:
+                                avalue[i] = (char*)pgr + MODE_CHOICE(0,4);
+                                ng++;
+                                pgr++;
 
-				break;
+                                break;
 
-			case FFI_TYPE_STRUCT:
-				if (cif->abi == FFI_DARWIN)
-				{
+                        case FFI_TYPE_STRUCT:
+                                if (cif->abi == FFI_DARWIN)
+                                {
 #if defined(__ppc64__)
-					unsigned int	gprSize = 0;
-					unsigned int	fprSize	= 0;
-					unsigned int	savedFPRSize = fprSize;
+                                        unsigned int    gprSize = 0;
+                                        unsigned int    fprSize = 0;
+                                        unsigned int    savedFPRSize = fprSize;
 
-					avalue[i] = alloca(arg_types[i]->size);
-					ffi64_struct_to_ram_form(arg_types[i], (const char*)pgr,
-						&gprSize, (const char*)pfr, &fprSize, &nf, avalue[i], NULL);
+                                        avalue[i] = alloca(arg_types[i]->size);
+                                        ffi64_struct_to_ram_form(arg_types[i], (const char*)pgr,
+                                                &gprSize, (const char*)pfr, &fprSize, &nf, avalue[i], NULL);
  
-					ng	+= gprSize / sizeof(long);
-					pgr	+= gprSize / sizeof(long);
-					pfr	+= (fprSize - savedFPRSize) / sizeof(double);
+                                        ng      += gprSize / sizeof(long);
+                                        pgr     += gprSize / sizeof(long);
+                                        pfr     += (fprSize - savedFPRSize) / sizeof(double);
 
 #elif defined(__ppc__)
-					/*	Structures that match the basic modes (QI 1 byte, HI 2 bytes,
-						SI 4 bytes) are aligned as if they were those modes.  */
-					unsigned int	size_al	= size_al = arg_types[i]->size;
+                                        /*      Structures that match the basic modes (QI 1 byte, HI 2 bytes,
+                                                SI 4 bytes) are aligned as if they were those modes.  */
+                                        unsigned int    size_al = size_al = arg_types[i]->size;
 
-					/*	If the first member of the struct is a double, then align
-						the struct to double-word.  */
-					if (arg_types[i]->elements[0]->type == FFI_TYPE_DOUBLE)
-						size_al = ALIGN(arg_types[i]->size, 8);
+                                        /*      If the first member of the struct is a double, then align
+                                                the struct to double-word.  */
+                                        if (arg_types[i]->elements[0]->type == FFI_TYPE_DOUBLE)
+                                                size_al = ALIGN(arg_types[i]->size, 8);
 
-					if (size_al < 3)
-						avalue[i] = (void*)pgr + MODE_CHOICE(4,8) - size_al;
-					else
-						avalue[i] = (void*)pgr;
+                                        if (size_al < 3)
+                                                avalue[i] = (void*)pgr + MODE_CHOICE(4,8) - size_al;
+                                        else
+                                                avalue[i] = (void*)pgr;
 
-					ng	+= (size_al + 3) / sizeof(long);
-					pgr += (size_al + 3) / sizeof(long);
+                                        ng      += (size_al + 3) / sizeof(long);
+                                        pgr += (size_al + 3) / sizeof(long);
 #else
 #error undefined architecture
 #endif
-				}
+                                }
 
-				break;
+                                break;
 
 #if defined(__ppc64__)
-			case FFI_TYPE_POINTER:
+                        case FFI_TYPE_POINTER:
 #endif
-			case FFI_TYPE_SINT64:
-			case FFI_TYPE_UINT64:
-				/* Long long ints are passed in 1 or 2 GPRs.  */
-				avalue[i] = pgr;
-				ng += MODE_CHOICE(2,1);
-				pgr += MODE_CHOICE(2,1);
+                        case FFI_TYPE_SINT64:
+                        case FFI_TYPE_UINT64:
+                                /* Long long ints are passed in 1 or 2 GPRs.  */
+                                avalue[i] = pgr;
+                                ng += MODE_CHOICE(2,1);
+                                pgr += MODE_CHOICE(2,1);
 
-				break;
+                                break;
 
-			case FFI_TYPE_FLOAT:
-				/*	A float value consumes a GPR.
-					There are 13 64-bit floating point registers.  */
-				if (nf < NUM_FPR_ARG_REGISTERS)
-				{
-					temp = pfr->d;
-					pfr->f = (float)temp;
-					avalue[i] = pfr;
-					pfr++;
-				}
-				else
-					avalue[i] = pgr;
+                        case FFI_TYPE_FLOAT:
+                                /*      A float value consumes a GPR.
+                                        There are 13 64-bit floating point registers.  */
+                                if (nf < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        temp = pfr->d;
+                                        pfr->f = (float)temp;
+                                        avalue[i] = pfr;
+                                        pfr++;
+                                }
+                                else
+                                        avalue[i] = pgr;
 
-				nf++;
-				ng++;
-				pgr++;
-				break;
+                                nf++;
+                                ng++;
+                                pgr++;
+                                break;
 
-			case FFI_TYPE_DOUBLE:
-				/*	A double value consumes one or two GPRs.
-					There are 13 64bit floating point registers.  */
-				if (nf < NUM_FPR_ARG_REGISTERS)
-				{
-					avalue[i] = pfr;
-					pfr++;
-				}
-				else
-					avalue[i] = pgr;
+                        case FFI_TYPE_DOUBLE:
+                                /*      A double value consumes one or two GPRs.
+                                        There are 13 64bit floating point registers.  */
+                                if (nf < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        avalue[i] = pfr;
+                                        pfr++;
+                                }
+                                else
+                                        avalue[i] = pgr;
 
-				nf++;
-				ng += MODE_CHOICE(2,1);
-				pgr += MODE_CHOICE(2,1);
+                                nf++;
+                                ng += MODE_CHOICE(2,1);
+                                pgr += MODE_CHOICE(2,1);
 
-				break;
+                                break;
 
 #if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
 
-			case FFI_TYPE_LONGDOUBLE:
+                        case FFI_TYPE_LONGDOUBLE:
 #if defined(__ppc64__)
-				if (nf < NUM_FPR_ARG_REGISTERS)
-				{
-					avalue[i] = pfr;
-					pfr += 2;
-				}
+                                if (nf < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        avalue[i] = pfr;
+                                        pfr += 2;
+                                }
 #elif defined(__ppc__)
-				/*	A long double value consumes 2/4 GPRs and 2 FPRs.
-					There are 13 64bit floating point registers.  */
-				if (nf < NUM_FPR_ARG_REGISTERS - 1)
-				{
-					avalue[i] = pfr;
-					pfr += 2;
-				}
-				/*	Here we have the situation where one part of the long double
-					is stored in fpr13 and the other part is already on the stack.
-					We use a union to pass the long double to avalue[i].  */
-				else if (nf == NUM_FPR_ARG_REGISTERS - 1)
-				{
-					memcpy (&temp_ld.lb[0], pfr, sizeof(temp_ld.lb[0]));
-					memcpy (&temp_ld.lb[1], pgr + 2, sizeof(temp_ld.lb[1]));
-					avalue[i] = &temp_ld.ld;
-				}
+                                /*      A long double value consumes 2/4 GPRs and 2 FPRs.
+                                        There are 13 64bit floating point registers.  */
+                                if (nf < NUM_FPR_ARG_REGISTERS - 1)
+                                {
+                                        avalue[i] = pfr;
+                                        pfr += 2;
+                                }
+                                /*      Here we have the situation where one part of the long double
+                                        is stored in fpr13 and the other part is already on the stack.
+                                        We use a union to pass the long double to avalue[i].  */
+                                else if (nf == NUM_FPR_ARG_REGISTERS - 1)
+                                {
+                                        memcpy (&temp_ld.lb[0], pfr, sizeof(temp_ld.lb[0]));
+                                        memcpy (&temp_ld.lb[1], pgr + 2, sizeof(temp_ld.lb[1]));
+                                        avalue[i] = &temp_ld.ld;
+                                }
 #else
 #error undefined architecture
 #endif
-				else
-					avalue[i] = pgr;
+                                else
+                                        avalue[i] = pgr;
 
-				nf += 2;
-				ng += MODE_CHOICE(4,2);
-				pgr += MODE_CHOICE(4,2);
+                                nf += 2;
+                                ng += MODE_CHOICE(4,2);
+                                pgr += MODE_CHOICE(4,2);
 
-				break;
+                                break;
 
-#endif	/*	FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE	*/
+#endif  /*      FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE  */
 
-			default:
-				FFI_ASSERT(0);
-				break;
-		}
-	}
+                        default:
+                                FFI_ASSERT(0);
+                                break;
+                }
+        }
 
-	(closure->fun)(cif, rvalue, avalue, closure->user_data);
+        (closure->fun)(cif, rvalue, avalue, closure->user_data);
 
-	/* Tell ffi_closure_ASM to perform return type promotions.  */
-	return cif->rtype->type;
+        /* Tell ffi_closure_ASM to perform return type promotions.  */
+        return cif->rtype->type;
 }
 
 #if defined(__ppc64__)
 
-/*	ffi64_struct_to_ram_form
+/*      ffi64_struct_to_ram_form
 
-	Rebuild a struct's natural layout from buffers of concatenated registers.
-	Return the number of registers used.
-	inGPRs[0-7] == r3, inFPRs[0-7] == f1 ...
+        Rebuild a struct's natural layout from buffers of concatenated registers.
+        Return the number of registers used.
+        inGPRs[0-7] == r3, inFPRs[0-7] == f1 ...
 */
 void
 ffi64_struct_to_ram_form(
-	const ffi_type*	inType,
-	const char*		inGPRs,
-	unsigned int*	ioGPRMarker,
-	const char*		inFPRs,
-	unsigned int*	ioFPRMarker,
-	unsigned int*	ioFPRsUsed,
-	char*			outStruct,	// caller-allocated
-	unsigned int*	ioStructMarker)
+        const ffi_type* inType,
+        const char*             inGPRs,
+        unsigned int*   ioGPRMarker,
+        const char*             inFPRs,
+        unsigned int*   ioFPRMarker,
+        unsigned int*   ioFPRsUsed,
+        char*                   outStruct,      // caller-allocated
+        unsigned int*   ioStructMarker)
 {
-	unsigned int	srcGMarker		= 0;
-	unsigned int	srcFMarker		= 0;
-	unsigned int	savedFMarker	= 0;
-	unsigned int	fprsUsed		= 0;
-	unsigned int	savedFPRsUsed	= 0;
-	unsigned int	destMarker		= 0;
+        unsigned int    srcGMarker              = 0;
+        unsigned int    srcFMarker              = 0;
+        unsigned int    savedFMarker    = 0;
+        unsigned int    fprsUsed                = 0;
+        unsigned int    savedFPRsUsed   = 0;
+        unsigned int    destMarker              = 0;
 
-	static unsigned int	recurseCount	= 0;
+        static unsigned int     recurseCount    = 0;
 
-	if (ioGPRMarker)
-		srcGMarker	= *ioGPRMarker;
+        if (ioGPRMarker)
+                srcGMarker      = *ioGPRMarker;
 
-	if (ioFPRMarker)
-	{
-		srcFMarker		= *ioFPRMarker;
-		savedFMarker	= srcFMarker;
-	}
+        if (ioFPRMarker)
+        {
+                srcFMarker              = *ioFPRMarker;
+                savedFMarker    = srcFMarker;
+        }
 
-	if (ioFPRsUsed)
-	{
-		fprsUsed		= *ioFPRsUsed;
-		savedFPRsUsed	= fprsUsed;
-	}
+        if (ioFPRsUsed)
+        {
+                fprsUsed                = *ioFPRsUsed;
+                savedFPRsUsed   = fprsUsed;
+        }
 
-	if (ioStructMarker)
-		destMarker	= *ioStructMarker;
+        if (ioStructMarker)
+                destMarker      = *ioStructMarker;
 
-	size_t			i;
+        size_t                  i;
 
-	switch (inType->size)
-	{
-		case 1: case 2: case 4:
-			srcGMarker += 8 - inType->size;
-			break;
+        switch (inType->size)
+        {
+                case 1: case 2: case 4:
+                        srcGMarker += 8 - inType->size;
+                        break;
 
-		default:
-			break;
-	}
+                default:
+                        break;
+        }
 
-	for (i = 0; inType->elements[i] != NULL; i++)
-	{
-		switch (inType->elements[i]->type)
-		{
-			case FFI_TYPE_FLOAT:
-				srcFMarker = ALIGN(srcFMarker, 4);
-				srcGMarker = ALIGN(srcGMarker, 4);
-				destMarker = ALIGN(destMarker, 4);
+        for (i = 0; inType->elements[i] != NULL; i++)
+        {
+                switch (inType->elements[i]->type)
+                {
+                        case FFI_TYPE_FLOAT:
+                                srcFMarker = ALIGN(srcFMarker, 4);
+                                srcGMarker = ALIGN(srcGMarker, 4);
+                                destMarker = ALIGN(destMarker, 4);
 
-				if (fprsUsed < NUM_FPR_ARG_REGISTERS)
-				{
-					*(float*)&outStruct[destMarker]	=
-						(float)*(double*)&inFPRs[srcFMarker];
-					srcFMarker += 8;
-					fprsUsed++;
-				}
-				else
-					*(float*)&outStruct[destMarker]	=
-						(float)*(double*)&inGPRs[srcGMarker];
+                                if (fprsUsed < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        *(float*)&outStruct[destMarker] =
+                                                (float)*(double*)&inFPRs[srcFMarker];
+                                        srcFMarker += 8;
+                                        fprsUsed++;
+                                }
+                                else
+                                        *(float*)&outStruct[destMarker] =
+                                                (float)*(double*)&inGPRs[srcGMarker];
 
-				srcGMarker += 4;
-				destMarker += 4;
+                                srcGMarker += 4;
+                                destMarker += 4;
 
-				// Skip to next GPR if next element won't fit and we're
-				// not already at a register boundary.
-				if (inType->elements[i + 1] != NULL && (destMarker % 8))
-				{
-					if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
-						(!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
-						(ALIGN(srcGMarker, 8) - srcGMarker) < 2) &&
-						(!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
-						(ALIGN(srcGMarker, 8) - srcGMarker) < 4))
-						srcGMarker	= ALIGN(srcGMarker, 8);
-				}
+                                // Skip to next GPR if next element won't fit and we're
+                                // not already at a register boundary.
+                                if (inType->elements[i + 1] != NULL && (destMarker % 8))
+                                {
+                                        if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
+                                                (!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
+                                                (ALIGN(srcGMarker, 8) - srcGMarker) < 2) &&
+                                                (!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
+                                                (ALIGN(srcGMarker, 8) - srcGMarker) < 4))
+                                                srcGMarker      = ALIGN(srcGMarker, 8);
+                                }
 
-				break;
+                                break;
 
-			case FFI_TYPE_DOUBLE:
-				srcFMarker = ALIGN(srcFMarker, 8);
-				destMarker = ALIGN(destMarker, 8);
+                        case FFI_TYPE_DOUBLE:
+                                srcFMarker = ALIGN(srcFMarker, 8);
+                                destMarker = ALIGN(destMarker, 8);
 
-				if (fprsUsed < NUM_FPR_ARG_REGISTERS)
-				{
-					*(double*)&outStruct[destMarker]	=
-						*(double*)&inFPRs[srcFMarker];
-					srcFMarker += 8;
-					fprsUsed++;
-				}
-				else
-					*(double*)&outStruct[destMarker]	=
-						*(double*)&inGPRs[srcGMarker];
+                                if (fprsUsed < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        *(double*)&outStruct[destMarker]        =
+                                                *(double*)&inFPRs[srcFMarker];
+                                        srcFMarker += 8;
+                                        fprsUsed++;
+                                }
+                                else
+                                        *(double*)&outStruct[destMarker]        =
+                                                *(double*)&inGPRs[srcGMarker];
 
-				destMarker += 8;
+                                destMarker += 8;
 
-				// Skip next GPR
-				srcGMarker += 8;
-				srcGMarker = ALIGN(srcGMarker, 8);
+                                // Skip next GPR
+                                srcGMarker += 8;
+                                srcGMarker = ALIGN(srcGMarker, 8);
 
-				break;
+                                break;
 
-			case FFI_TYPE_LONGDOUBLE:
-				destMarker = ALIGN(destMarker, 16);
+                        case FFI_TYPE_LONGDOUBLE:
+                                destMarker = ALIGN(destMarker, 16);
 
-				if (fprsUsed < NUM_FPR_ARG_REGISTERS)
-				{
-					srcFMarker = ALIGN(srcFMarker, 8);
-					srcGMarker = ALIGN(srcGMarker, 8);
-					*(long double*)&outStruct[destMarker]	=
-						*(long double*)&inFPRs[srcFMarker];
-					srcFMarker += 16;
-					fprsUsed += 2;
-				}
-				else
-				{
-					srcFMarker = ALIGN(srcFMarker, 16);
-					srcGMarker = ALIGN(srcGMarker, 16);
-					*(long double*)&outStruct[destMarker]	=
-						*(long double*)&inGPRs[srcGMarker];
-				}
+                                if (fprsUsed < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        srcFMarker = ALIGN(srcFMarker, 8);
+                                        srcGMarker = ALIGN(srcGMarker, 8);
+                                        *(long double*)&outStruct[destMarker]   =
+                                                *(long double*)&inFPRs[srcFMarker];
+                                        srcFMarker += 16;
+                                        fprsUsed += 2;
+                                }
+                                else
+                                {
+                                        srcFMarker = ALIGN(srcFMarker, 16);
+                                        srcGMarker = ALIGN(srcGMarker, 16);
+                                        *(long double*)&outStruct[destMarker]   =
+                                                *(long double*)&inGPRs[srcGMarker];
+                                }
 
-				destMarker += 16;
+                                destMarker += 16;
 
-				// Skip next 2 GPRs
-				srcGMarker += 16;
-				srcGMarker = ALIGN(srcGMarker, 8);
+                                // Skip next 2 GPRs
+                                srcGMarker += 16;
+                                srcGMarker = ALIGN(srcGMarker, 8);
 
-				break;
+                                break;
 
-			case FFI_TYPE_UINT8:
-			case FFI_TYPE_SINT8:
-			{
-				if (inType->alignment == 1)	// chars only
-				{
-					if (inType->size == 1)
-						outStruct[destMarker++] = inGPRs[srcGMarker++];
-					else if (inType->size == 2)
-					{
-						outStruct[destMarker++] = inGPRs[srcGMarker++];
-						outStruct[destMarker++] = inGPRs[srcGMarker++];
-						i++;
-					}
-					else
-					{
-						memcpy(&outStruct[destMarker],
-							&inGPRs[srcGMarker], inType->size);
-						srcGMarker += inType->size;
-						destMarker += inType->size;
-						i += inType->size - 1;
-					}
-				}
-				else	// chars and other stuff
-				{
-					outStruct[destMarker++] = inGPRs[srcGMarker++];
+                        case FFI_TYPE_UINT8:
+                        case FFI_TYPE_SINT8:
+                        {
+                                if (inType->alignment == 1)     // chars only
+                                {
+                                        if (inType->size == 1)
+                                                outStruct[destMarker++] = inGPRs[srcGMarker++];
+                                        else if (inType->size == 2)
+                                        {
+                                                outStruct[destMarker++] = inGPRs[srcGMarker++];
+                                                outStruct[destMarker++] = inGPRs[srcGMarker++];
+                                                i++;
+                                        }
+                                        else
+                                        {
+                                                memcpy(&outStruct[destMarker],
+                                                        &inGPRs[srcGMarker], inType->size);
+                                                srcGMarker += inType->size;
+                                                destMarker += inType->size;
+                                                i += inType->size - 1;
+                                        }
+                                }
+                                else    // chars and other stuff
+                                {
+                                        outStruct[destMarker++] = inGPRs[srcGMarker++];
 
-					// Skip to next GPR if next element won't fit and we're
-					// not already at a register boundary.
-					if (inType->elements[i + 1] != NULL && (srcGMarker % 8))
-					{
-						if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
-							(!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
-							(ALIGN(srcGMarker, 8) - srcGMarker) < 2) &&
-							(!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
-							(ALIGN(srcGMarker, 8) - srcGMarker) < 4))
-							srcGMarker	= ALIGN(srcGMarker, inType->alignment);	// was 8
-					}
-				}
+                                        // Skip to next GPR if next element won't fit and we're
+                                        // not already at a register boundary.
+                                        if (inType->elements[i + 1] != NULL && (srcGMarker % 8))
+                                        {
+                                                if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
+                                                        (!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
+                                                        (ALIGN(srcGMarker, 8) - srcGMarker) < 2) &&
+                                                        (!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
+                                                        (ALIGN(srcGMarker, 8) - srcGMarker) < 4))
+                                                        srcGMarker      = ALIGN(srcGMarker, inType->alignment); // was 8
+                                        }
+                                }
 
-				break;
-			}
+                                break;
+                        }
 
-			case FFI_TYPE_UINT16:
-			case FFI_TYPE_SINT16:
-				srcGMarker = ALIGN(srcGMarker, 2);
-				destMarker = ALIGN(destMarker, 2);
+                        case FFI_TYPE_UINT16:
+                        case FFI_TYPE_SINT16:
+                                srcGMarker = ALIGN(srcGMarker, 2);
+                                destMarker = ALIGN(destMarker, 2);
 
-				*(short*)&outStruct[destMarker] =
-					*(short*)&inGPRs[srcGMarker];
-				srcGMarker += 2;
-				destMarker += 2;
+                                *(short*)&outStruct[destMarker] =
+                                        *(short*)&inGPRs[srcGMarker];
+                                srcGMarker += 2;
+                                destMarker += 2;
 
-				break;
+                                break;
 
-			case FFI_TYPE_INT:
-			case FFI_TYPE_UINT32:
-			case FFI_TYPE_SINT32:
-				srcGMarker = ALIGN(srcGMarker, 4);
-				destMarker = ALIGN(destMarker, 4);
+                        case FFI_TYPE_INT:
+                        case FFI_TYPE_UINT32:
+                        case FFI_TYPE_SINT32:
+                                srcGMarker = ALIGN(srcGMarker, 4);
+                                destMarker = ALIGN(destMarker, 4);
 
-				*(int*)&outStruct[destMarker] =
-					*(int*)&inGPRs[srcGMarker];
-				srcGMarker += 4;
-				destMarker += 4;
+                                *(int*)&outStruct[destMarker] =
+                                        *(int*)&inGPRs[srcGMarker];
+                                srcGMarker += 4;
+                                destMarker += 4;
 
-				break;
+                                break;
 
-			case FFI_TYPE_POINTER:
-			case FFI_TYPE_UINT64:
-			case FFI_TYPE_SINT64:
-				srcGMarker = ALIGN(srcGMarker, 8);
-				destMarker = ALIGN(destMarker, 8);
+                        case FFI_TYPE_POINTER:
+                        case FFI_TYPE_UINT64:
+                        case FFI_TYPE_SINT64:
+                                srcGMarker = ALIGN(srcGMarker, 8);
+                                destMarker = ALIGN(destMarker, 8);
 
-				*(long long*)&outStruct[destMarker] =
-					*(long long*)&inGPRs[srcGMarker];
-				srcGMarker += 8;
-				destMarker += 8;
+                                *(long long*)&outStruct[destMarker] =
+                                        *(long long*)&inGPRs[srcGMarker];
+                                srcGMarker += 8;
+                                destMarker += 8;
 
-				break;
+                                break;
 
-			case FFI_TYPE_STRUCT:
-				recurseCount++;
-				ffi64_struct_to_ram_form(inType->elements[i], inGPRs,
-					&srcGMarker, inFPRs, &srcFMarker, &fprsUsed,
-					outStruct, &destMarker);
-				recurseCount--;
-				break;
+                        case FFI_TYPE_STRUCT:
+                                recurseCount++;
+                                ffi64_struct_to_ram_form(inType->elements[i], inGPRs,
+                                        &srcGMarker, inFPRs, &srcFMarker, &fprsUsed,
+                                        outStruct, &destMarker);
+                                recurseCount--;
+                                break;
 
-			default:
-				FFI_ASSERT(0);	// unknown element type
-				break;
-		}
-	}
+                        default:
+                                FFI_ASSERT(0);  // unknown element type
+                                break;
+                }
+        }
 
-	srcGMarker = ALIGN(srcGMarker, inType->alignment);
+        srcGMarker = ALIGN(srcGMarker, inType->alignment);
 
-	// Take care of the special case for 16-byte structs, but not for
-	// nested structs.
-	if (recurseCount == 0 && srcGMarker == 16)
-	{
-		*(long double*)&outStruct[0] = *(long double*)&inGPRs[0];
-		srcFMarker	= savedFMarker;
-		fprsUsed	= savedFPRsUsed;
-	}
+        // Take care of the special case for 16-byte structs, but not for
+        // nested structs.
+        if (recurseCount == 0 && srcGMarker == 16)
+        {
+                *(long double*)&outStruct[0] = *(long double*)&inGPRs[0];
+                srcFMarker      = savedFMarker;
+                fprsUsed        = savedFPRsUsed;
+        }
 
-	if (ioGPRMarker)
-		*ioGPRMarker = ALIGN(srcGMarker, 8);
+        if (ioGPRMarker)
+                *ioGPRMarker = ALIGN(srcGMarker, 8);
 
-	if (ioFPRMarker)
-		*ioFPRMarker = srcFMarker;
+        if (ioFPRMarker)
+                *ioFPRMarker = srcFMarker;
 
-	if (ioFPRsUsed)
-		*ioFPRsUsed	= fprsUsed;
+        if (ioFPRsUsed)
+                *ioFPRsUsed     = fprsUsed;
 
-	if (ioStructMarker)
-		*ioStructMarker	= ALIGN(destMarker, 8);
+        if (ioStructMarker)
+                *ioStructMarker = ALIGN(destMarker, 8);
 }
 
-/*	ffi64_struct_to_reg_form
+/*      ffi64_struct_to_reg_form
 
-	Copy a struct's elements into buffers that can be sliced into registers.
-	Return the sizes of the output buffers in bytes. Pass NULL buffer pointers
-	to calculate size only.
-	outGPRs[0-7] == r3, outFPRs[0-7] == f1 ...
+        Copy a struct's elements into buffers that can be sliced into registers.
+        Return the sizes of the output buffers in bytes. Pass NULL buffer pointers
+        to calculate size only.
+        outGPRs[0-7] == r3, outFPRs[0-7] == f1 ...
 */
 void
 ffi64_struct_to_reg_form(
-	const ffi_type*	inType,
-	const char*		inStruct,
-	unsigned int*	ioStructMarker,
-	unsigned int*	ioFPRsUsed,
-	char*			outGPRs,	// caller-allocated
-	unsigned int*	ioGPRSize,
-	char*			outFPRs,	// caller-allocated
-	unsigned int*	ioFPRSize)
+        const ffi_type* inType,
+        const char*             inStruct,
+        unsigned int*   ioStructMarker,
+        unsigned int*   ioFPRsUsed,
+        char*                   outGPRs,        // caller-allocated
+        unsigned int*   ioGPRSize,
+        char*                   outFPRs,        // caller-allocated
+        unsigned int*   ioFPRSize)
 {
-	size_t			i;
-	unsigned int	srcMarker		= 0;
-	unsigned int	destGMarker		= 0;
-	unsigned int	destFMarker		= 0;
-	unsigned int	savedFMarker	= 0;
-	unsigned int	fprsUsed		= 0;
-	unsigned int	savedFPRsUsed	= 0;
+        size_t                  i;
+        unsigned int    srcMarker               = 0;
+        unsigned int    destGMarker             = 0;
+        unsigned int    destFMarker             = 0;
+        unsigned int    savedFMarker    = 0;
+        unsigned int    fprsUsed                = 0;
+        unsigned int    savedFPRsUsed   = 0;
 
-	static unsigned int	recurseCount	= 0;
+        static unsigned int     recurseCount    = 0;
 
-	if (ioStructMarker)
-		srcMarker	= *ioStructMarker;
+        if (ioStructMarker)
+                srcMarker       = *ioStructMarker;
 
-	if (ioFPRsUsed)
-	{
-		fprsUsed		= *ioFPRsUsed;
-		savedFPRsUsed	= fprsUsed;
-	}
+        if (ioFPRsUsed)
+        {
+                fprsUsed                = *ioFPRsUsed;
+                savedFPRsUsed   = fprsUsed;
+        }
 
-	if (ioGPRSize)
-		destGMarker	= *ioGPRSize;
+        if (ioGPRSize)
+                destGMarker     = *ioGPRSize;
 
-	if (ioFPRSize)
-	{
-		destFMarker		= *ioFPRSize;
-		savedFMarker	= destFMarker;
-	}
+        if (ioFPRSize)
+        {
+                destFMarker             = *ioFPRSize;
+                savedFMarker    = destFMarker;
+        }
 
-	switch (inType->size)
-	{
-		case 1: case 2: case 4:
-			destGMarker += 8 - inType->size;
-			break;
+        switch (inType->size)
+        {
+                case 1: case 2: case 4:
+                        destGMarker += 8 - inType->size;
+                        break;
 
-		default:
-			break;
-	}
+                default:
+                        break;
+        }
 
-	for (i = 0; inType->elements[i] != NULL; i++)
-	{
-		switch (inType->elements[i]->type)
-		{
-			// Shadow floating-point types in GPRs for vararg and pre-ANSI
-			// functions.
-			case FFI_TYPE_FLOAT:
-				// Nudge markers to next 4/8-byte boundary
-				srcMarker = ALIGN(srcMarker, 4);
-				destGMarker = ALIGN(destGMarker, 4);
-				destFMarker = ALIGN(destFMarker, 8);
+        for (i = 0; inType->elements[i] != NULL; i++)
+        {
+                switch (inType->elements[i]->type)
+                {
+                        // Shadow floating-point types in GPRs for vararg and pre-ANSI
+                        // functions.
+                        case FFI_TYPE_FLOAT:
+                                // Nudge markers to next 4/8-byte boundary
+                                srcMarker = ALIGN(srcMarker, 4);
+                                destGMarker = ALIGN(destGMarker, 4);
+                                destFMarker = ALIGN(destFMarker, 8);
 
-				if (fprsUsed < NUM_FPR_ARG_REGISTERS)
-				{
-					if (outFPRs != NULL && inStruct != NULL)
-						*(double*)&outFPRs[destFMarker] =
-							(double)*(float*)&inStruct[srcMarker];
+                                if (fprsUsed < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        if (outFPRs != NULL && inStruct != NULL)
+                                                *(double*)&outFPRs[destFMarker] =
+                                                        (double)*(float*)&inStruct[srcMarker];
 
-					destFMarker += 8;
-					fprsUsed++;
-				}
+                                        destFMarker += 8;
+                                        fprsUsed++;
+                                }
 
-				if (outGPRs != NULL && inStruct != NULL)
-					*(double*)&outGPRs[destGMarker] =
-						(double)*(float*)&inStruct[srcMarker];
+                                if (outGPRs != NULL && inStruct != NULL)
+                                        *(double*)&outGPRs[destGMarker] =
+                                                (double)*(float*)&inStruct[srcMarker];
 
-				srcMarker += 4;
-				destGMarker += 4;
+                                srcMarker += 4;
+                                destGMarker += 4;
 
-				// Skip to next GPR if next element won't fit and we're
-				// not already at a register boundary.
-				if (inType->elements[i + 1] != NULL && (srcMarker % 8))
-				{
-					if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
-						(!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
-						(ALIGN(destGMarker, 8) - destGMarker) < 2) &&
-						(!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
-						(ALIGN(destGMarker, 8) - destGMarker) < 4))
-						destGMarker	= ALIGN(destGMarker, 8);
-				}
+                                // Skip to next GPR if next element won't fit and we're
+                                // not already at a register boundary.
+                                if (inType->elements[i + 1] != NULL && (srcMarker % 8))
+                                {
+                                        if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
+                                                (!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
+                                                (ALIGN(destGMarker, 8) - destGMarker) < 2) &&
+                                                (!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
+                                                (ALIGN(destGMarker, 8) - destGMarker) < 4))
+                                                destGMarker     = ALIGN(destGMarker, 8);
+                                }
 
-				break;
+                                break;
 
-			case FFI_TYPE_DOUBLE:
-				srcMarker = ALIGN(srcMarker, 8);
-				destFMarker = ALIGN(destFMarker, 8);
+                        case FFI_TYPE_DOUBLE:
+                                srcMarker = ALIGN(srcMarker, 8);
+                                destFMarker = ALIGN(destFMarker, 8);
 
-				if (fprsUsed < NUM_FPR_ARG_REGISTERS)
-				{
-					if (outFPRs != NULL && inStruct != NULL)
-						*(double*)&outFPRs[destFMarker] =
-							*(double*)&inStruct[srcMarker];
+                                if (fprsUsed < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        if (outFPRs != NULL && inStruct != NULL)
+                                                *(double*)&outFPRs[destFMarker] =
+                                                        *(double*)&inStruct[srcMarker];
 
-					destFMarker += 8;
-					fprsUsed++;
-				}
+                                        destFMarker += 8;
+                                        fprsUsed++;
+                                }
 
-				if (outGPRs != NULL && inStruct != NULL)
-					*(double*)&outGPRs[destGMarker] =
-						*(double*)&inStruct[srcMarker];
+                                if (outGPRs != NULL && inStruct != NULL)
+                                        *(double*)&outGPRs[destGMarker] =
+                                                *(double*)&inStruct[srcMarker];
 
-				srcMarker += 8;
+                                srcMarker += 8;
 
-				// Skip next GPR
-				destGMarker += 8;
-				destGMarker = ALIGN(destGMarker, 8);
+                                // Skip next GPR
+                                destGMarker += 8;
+                                destGMarker = ALIGN(destGMarker, 8);
 
-				break;
+                                break;
 
-			case FFI_TYPE_LONGDOUBLE:
-				srcMarker = ALIGN(srcMarker, 16);
+                        case FFI_TYPE_LONGDOUBLE:
+                                srcMarker = ALIGN(srcMarker, 16);
 
-				if (fprsUsed < NUM_FPR_ARG_REGISTERS)
-				{
-					destFMarker = ALIGN(destFMarker, 8);
-					destGMarker = ALIGN(destGMarker, 8);
+                                if (fprsUsed < NUM_FPR_ARG_REGISTERS)
+                                {
+                                        destFMarker = ALIGN(destFMarker, 8);
+                                        destGMarker = ALIGN(destGMarker, 8);
 
-					if (outFPRs != NULL && inStruct != NULL)
-						*(long double*)&outFPRs[destFMarker] =
-							*(long double*)&inStruct[srcMarker];
+                                        if (outFPRs != NULL && inStruct != NULL)
+                                                *(long double*)&outFPRs[destFMarker] =
+                                                        *(long double*)&inStruct[srcMarker];
 
-					if (outGPRs != NULL && inStruct != NULL)
-						*(long double*)&outGPRs[destGMarker] =
-							*(long double*)&inStruct[srcMarker];
+                                        if (outGPRs != NULL && inStruct != NULL)
+                                                *(long double*)&outGPRs[destGMarker] =
+                                                        *(long double*)&inStruct[srcMarker];
 
-					destFMarker += 16;
-					fprsUsed += 2;
-				}
-				else
-				{
-				 	destGMarker = ALIGN(destGMarker, 16);
+                                        destFMarker += 16;
+                                        fprsUsed += 2;
+                                }
+                                else
+                                {
+                                        destGMarker = ALIGN(destGMarker, 16);
 
-					 if (outGPRs != NULL && inStruct != NULL)
-						*(long double*)&outGPRs[destGMarker] =
-							*(long double*)&inStruct[srcMarker];
-				}
+                                         if (outGPRs != NULL && inStruct != NULL)
+                                                *(long double*)&outGPRs[destGMarker] =
+                                                        *(long double*)&inStruct[srcMarker];
+                                }
 
-				srcMarker += 16;
-				destGMarker += 16;	// Skip next 2 GPRs
-				destGMarker = ALIGN(destGMarker, 8);	// was 16
+                                srcMarker += 16;
+                                destGMarker += 16;      // Skip next 2 GPRs
+                                destGMarker = ALIGN(destGMarker, 8);    // was 16
 
-				break;
+                                break;
 
-			case FFI_TYPE_UINT8:
-			case FFI_TYPE_SINT8:
-				if (inType->alignment == 1)	// bytes only
-				{
-					if (inType->size == 1)
-					{
-						if (outGPRs != NULL && inStruct != NULL)
-							outGPRs[destGMarker] = inStruct[srcMarker];
+                        case FFI_TYPE_UINT8:
+                        case FFI_TYPE_SINT8:
+                                if (inType->alignment == 1)     // bytes only
+                                {
+                                        if (inType->size == 1)
+                                        {
+                                                if (outGPRs != NULL && inStruct != NULL)
+                                                        outGPRs[destGMarker] = inStruct[srcMarker];
 
-						srcMarker++;
-						destGMarker++;
-					}
-					else if (inType->size == 2)
-					{
-						if (outGPRs != NULL && inStruct != NULL)
-						{
-							outGPRs[destGMarker] = inStruct[srcMarker];
-							outGPRs[destGMarker + 1] = inStruct[srcMarker + 1];
-						}
+                                                srcMarker++;
+                                                destGMarker++;
+                                        }
+                                        else if (inType->size == 2)
+                                        {
+                                                if (outGPRs != NULL && inStruct != NULL)
+                                                {
+                                                        outGPRs[destGMarker] = inStruct[srcMarker];
+                                                        outGPRs[destGMarker + 1] = inStruct[srcMarker + 1];
+                                                }
 
-						srcMarker += 2;
-						destGMarker += 2;
+                                                srcMarker += 2;
+                                                destGMarker += 2;
 
-						i++;
-					}
-					else
-					{
-						if (outGPRs != NULL && inStruct != NULL)
-						{
-							// Avoid memcpy for small chunks.
-							if (inType->size <= sizeof(long))
-								*(long*)&outGPRs[destGMarker] =
-									*(long*)&inStruct[srcMarker];
-							else
-								memcpy(&outGPRs[destGMarker],
-									&inStruct[srcMarker], inType->size);
-						}
-						
-						srcMarker += inType->size;
-						destGMarker += inType->size;
-						i += inType->size - 1;
-					}
-				}
-				else	// bytes and other stuff
-				{
-					if (outGPRs != NULL && inStruct != NULL)
-						outGPRs[destGMarker] = inStruct[srcMarker];
+                                                i++;
+                                        }
+                                        else
+                                        {
+                                                if (outGPRs != NULL && inStruct != NULL)
+                                                {
+                                                        // Avoid memcpy for small chunks.
+                                                        if (inType->size <= sizeof(long))
+                                                                *(long*)&outGPRs[destGMarker] =
+                                                                        *(long*)&inStruct[srcMarker];
+                                                        else
+                                                                memcpy(&outGPRs[destGMarker],
+                                                                        &inStruct[srcMarker], inType->size);
+                                                }
+                                                
+                                                srcMarker += inType->size;
+                                                destGMarker += inType->size;
+                                                i += inType->size - 1;
+                                        }
+                                }
+                                else    // bytes and other stuff
+                                {
+                                        if (outGPRs != NULL && inStruct != NULL)
+                                                outGPRs[destGMarker] = inStruct[srcMarker];
 
-					srcMarker++;
-					destGMarker++;
+                                        srcMarker++;
+                                        destGMarker++;
 
-					// Skip to next GPR if next element won't fit and we're
-					// not already at a register boundary.
-					if (inType->elements[i + 1] != NULL && (destGMarker % 8))
-					{
-						if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
-							(!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
-							(ALIGN(destGMarker, 8) - destGMarker) < 2) &&
-							(!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
-							(ALIGN(destGMarker, 8) - destGMarker) < 4))
-							destGMarker	= ALIGN(destGMarker, inType->alignment);	// was 8
-					}
-				}
+                                        // Skip to next GPR if next element won't fit and we're
+                                        // not already at a register boundary.
+                                        if (inType->elements[i + 1] != NULL && (destGMarker % 8))
+                                        {
+                                                if (!FFI_TYPE_1_BYTE(inType->elements[i + 1]->type) &&
+                                                        (!FFI_TYPE_2_BYTE(inType->elements[i + 1]->type) ||
+                                                        (ALIGN(destGMarker, 8) - destGMarker) < 2) &&
+                                                        (!FFI_TYPE_4_BYTE(inType->elements[i + 1]->type) ||
+                                                        (ALIGN(destGMarker, 8) - destGMarker) < 4))
+                                                        destGMarker     = ALIGN(destGMarker, inType->alignment);        // was 8
+                                        }
+                                }
 
-				break;
+                                break;
 
-			case FFI_TYPE_UINT16:
-			case FFI_TYPE_SINT16:
-				srcMarker = ALIGN(srcMarker, 2);
-				destGMarker = ALIGN(destGMarker, 2);
+                        case FFI_TYPE_UINT16:
+                        case FFI_TYPE_SINT16:
+                                srcMarker = ALIGN(srcMarker, 2);
+                                destGMarker = ALIGN(destGMarker, 2);
 
-				if (outGPRs != NULL && inStruct != NULL)
-					*(short*)&outGPRs[destGMarker] =
-						*(short*)&inStruct[srcMarker];
+                                if (outGPRs != NULL && inStruct != NULL)
+                                        *(short*)&outGPRs[destGMarker] =
+                                                *(short*)&inStruct[srcMarker];
 
-				srcMarker += 2;
-				destGMarker += 2;
+                                srcMarker += 2;
+                                destGMarker += 2;
 
-				if (inType->elements[i + 1] == NULL)
-					destGMarker	= ALIGN(destGMarker, inType->alignment);
+                                if (inType->elements[i + 1] == NULL)
+                                        destGMarker     = ALIGN(destGMarker, inType->alignment);
 
-				break;
+                                break;
 
-			case FFI_TYPE_INT:
-			case FFI_TYPE_UINT32:
-			case FFI_TYPE_SINT32:
-				srcMarker = ALIGN(srcMarker, 4);
-				destGMarker = ALIGN(destGMarker, 4);
+                        case FFI_TYPE_INT:
+                        case FFI_TYPE_UINT32:
+                        case FFI_TYPE_SINT32:
+                                srcMarker = ALIGN(srcMarker, 4);
+                                destGMarker = ALIGN(destGMarker, 4);
 
-				if (outGPRs != NULL && inStruct != NULL)
-					*(int*)&outGPRs[destGMarker] =
-						*(int*)&inStruct[srcMarker];
+                                if (outGPRs != NULL && inStruct != NULL)
+                                        *(int*)&outGPRs[destGMarker] =
+                                                *(int*)&inStruct[srcMarker];
 
-				srcMarker += 4;
-				destGMarker += 4;
+                                srcMarker += 4;
+                                destGMarker += 4;
 
-				break;
+                                break;
 
-			case FFI_TYPE_POINTER:
-			case FFI_TYPE_UINT64:
-			case FFI_TYPE_SINT64:
-				srcMarker = ALIGN(srcMarker, 8);
-				destGMarker = ALIGN(destGMarker, 8);
+                        case FFI_TYPE_POINTER:
+                        case FFI_TYPE_UINT64:
+                        case FFI_TYPE_SINT64:
+                                srcMarker = ALIGN(srcMarker, 8);
+                                destGMarker = ALIGN(destGMarker, 8);
 
-				if (outGPRs != NULL && inStruct != NULL)
-					*(long long*)&outGPRs[destGMarker] =
-						*(long long*)&inStruct[srcMarker];
+                                if (outGPRs != NULL && inStruct != NULL)
+                                        *(long long*)&outGPRs[destGMarker] =
+                                                *(long long*)&inStruct[srcMarker];
 
-				srcMarker += 8;
-				destGMarker += 8;
+                                srcMarker += 8;
+                                destGMarker += 8;
 
-				if (inType->elements[i + 1] == NULL)
-					destGMarker	= ALIGN(destGMarker, inType->alignment);
+                                if (inType->elements[i + 1] == NULL)
+                                        destGMarker     = ALIGN(destGMarker, inType->alignment);
 
-				break;
+                                break;
 
-			case FFI_TYPE_STRUCT:
-				recurseCount++;
-				ffi64_struct_to_reg_form(inType->elements[i],
-					inStruct, &srcMarker, &fprsUsed, outGPRs, 
-					&destGMarker, outFPRs, &destFMarker);
-				recurseCount--;
-				break;
+                        case FFI_TYPE_STRUCT:
+                                recurseCount++;
+                                ffi64_struct_to_reg_form(inType->elements[i],
+                                        inStruct, &srcMarker, &fprsUsed, outGPRs, 
+                                        &destGMarker, outFPRs, &destFMarker);
+                                recurseCount--;
+                                break;
 
-			default:
-				FFI_ASSERT(0);
-				break;
-		}
-	}
+                        default:
+                                FFI_ASSERT(0);
+                                break;
+                }
+        }
 
-	destGMarker	= ALIGN(destGMarker, inType->alignment);
+        destGMarker     = ALIGN(destGMarker, inType->alignment);
 
-	// Take care of the special case for 16-byte structs, but not for
-	// nested structs.
-	if (recurseCount == 0 && destGMarker == 16)
-	{
-		if (outGPRs != NULL && inStruct != NULL)
-			*(long double*)&outGPRs[0] = *(long double*)&inStruct[0];
+        // Take care of the special case for 16-byte structs, but not for
+        // nested structs.
+        if (recurseCount == 0 && destGMarker == 16)
+        {
+                if (outGPRs != NULL && inStruct != NULL)
+                        *(long double*)&outGPRs[0] = *(long double*)&inStruct[0];
 
-		destFMarker	= savedFMarker;
-		fprsUsed	= savedFPRsUsed;
-	}
+                destFMarker     = savedFMarker;
+                fprsUsed        = savedFPRsUsed;
+        }
 
-	if (ioStructMarker)
-		*ioStructMarker	= ALIGN(srcMarker, 8);
+        if (ioStructMarker)
+                *ioStructMarker = ALIGN(srcMarker, 8);
 
-	if (ioFPRsUsed)
-		*ioFPRsUsed	= fprsUsed;
+        if (ioFPRsUsed)
+                *ioFPRsUsed     = fprsUsed;
 
-	if (ioGPRSize)
-		*ioGPRSize = ALIGN(destGMarker, 8);
+        if (ioGPRSize)
+                *ioGPRSize = ALIGN(destGMarker, 8);
 
-	if (ioFPRSize)
-		*ioFPRSize = ALIGN(destFMarker, 8);
+        if (ioFPRSize)
+                *ioFPRSize = ALIGN(destFMarker, 8);
 }
 
-/*	ffi64_stret_needs_ptr
+/*      ffi64_stret_needs_ptr
 
-	Determine whether a returned struct needs a pointer in r3 or can fit
-	in registers.
+        Determine whether a returned struct needs a pointer in r3 or can fit
+        in registers.
 */
 
 bool
 ffi64_stret_needs_ptr(
-	const ffi_type*	inType,
-	unsigned short*	ioGPRCount,
-	unsigned short*	ioFPRCount)
+        const ffi_type* inType,
+        unsigned short* ioGPRCount,
+        unsigned short* ioFPRCount)
 {
-	// Obvious case first- struct is larger than combined FPR size.
-	if (inType->size > 14 * 8)
-		return true;
+        // Obvious case first- struct is larger than combined FPR size.
+        if (inType->size > 14 * 8)
+                return true;
 
-	// Now the struct can physically fit in registers, determine if it
-	// also fits logically.
-	bool			needsPtr	= false;
-	unsigned short	gprsUsed	= 0;
-	unsigned short	fprsUsed	= 0;
-	size_t			i;
+        // Now the struct can physically fit in registers, determine if it
+        // also fits logically.
+        bool                    needsPtr        = false;
+        unsigned short  gprsUsed        = 0;
+        unsigned short  fprsUsed        = 0;
+        size_t                  i;
 
-	if (ioGPRCount)
-		gprsUsed = *ioGPRCount;
+        if (ioGPRCount)
+                gprsUsed = *ioGPRCount;
 
-	if (ioFPRCount)
-		fprsUsed = *ioFPRCount;
+        if (ioFPRCount)
+                fprsUsed = *ioFPRCount;
 
-	for (i = 0; inType->elements[i] != NULL && !needsPtr; i++)
-	{
-		switch (inType->elements[i]->type)
-		{
-			case FFI_TYPE_FLOAT:
-			case FFI_TYPE_DOUBLE:
-				gprsUsed++;
-				fprsUsed++;
+        for (i = 0; inType->elements[i] != NULL && !needsPtr; i++)
+        {
+                switch (inType->elements[i]->type)
+                {
+                        case FFI_TYPE_FLOAT:
+                        case FFI_TYPE_DOUBLE:
+                                gprsUsed++;
+                                fprsUsed++;
 
-				if (fprsUsed > 13)
-					needsPtr = true;
+                                if (fprsUsed > 13)
+                                        needsPtr = true;
 
-				break;
+                                break;
 
-			case FFI_TYPE_LONGDOUBLE:
-				gprsUsed += 2;
-				fprsUsed += 2;
+                        case FFI_TYPE_LONGDOUBLE:
+                                gprsUsed += 2;
+                                fprsUsed += 2;
 
-				if (fprsUsed > 14)
-					needsPtr = true;
+                                if (fprsUsed > 14)
+                                        needsPtr = true;
 
-				break;
+                                break;
 
-			case FFI_TYPE_UINT8:
-			case FFI_TYPE_SINT8:
-			{
-				gprsUsed++;
+                        case FFI_TYPE_UINT8:
+                        case FFI_TYPE_SINT8:
+                        {
+                                gprsUsed++;
 
-				if (gprsUsed > 8)
-				{
-					needsPtr = true;
-					break;
-				}
+                                if (gprsUsed > 8)
+                                {
+                                        needsPtr = true;
+                                        break;
+                                }
 
-				if (inType->elements[i + 1] == NULL)	// last byte in the struct
-					break;
+                                if (inType->elements[i + 1] == NULL)    // last byte in the struct
+                                        break;
 
-				// Count possible contiguous bytes ahead, up to 8.
-				unsigned short j;
+                                // Count possible contiguous bytes ahead, up to 8.
+                                unsigned short j;
 
-				for (j = 1; j < 8; j++)
-				{
-					if (inType->elements[i + j] == NULL ||
-						!FFI_TYPE_1_BYTE(inType->elements[i + j]->type))
-						break;
-				}
+                                for (j = 1; j < 8; j++)
+                                {
+                                        if (inType->elements[i + j] == NULL ||
+                                                !FFI_TYPE_1_BYTE(inType->elements[i + j]->type))
+                                                break;
+                                }
 
-				i += j - 1;	// allow for i++ before the test condition
+                                i += j - 1;     // allow for i++ before the test condition
 
-				break;
-			}
+                                break;
+                        }
 
-			case FFI_TYPE_UINT16:
-			case FFI_TYPE_SINT16:
-			case FFI_TYPE_INT:
-			case FFI_TYPE_UINT32:
-			case FFI_TYPE_SINT32:
-			case FFI_TYPE_POINTER:
-			case FFI_TYPE_UINT64:
-			case FFI_TYPE_SINT64:
-				gprsUsed++;
+                        case FFI_TYPE_UINT16:
+                        case FFI_TYPE_SINT16:
+                        case FFI_TYPE_INT:
+                        case FFI_TYPE_UINT32:
+                        case FFI_TYPE_SINT32:
+                        case FFI_TYPE_POINTER:
+                        case FFI_TYPE_UINT64:
+                        case FFI_TYPE_SINT64:
+                                gprsUsed++;
 
-				if (gprsUsed > 8)
-					needsPtr = true;
+                                if (gprsUsed > 8)
+                                        needsPtr = true;
 
-				break;
+                                break;
 
-			case FFI_TYPE_STRUCT:
-				needsPtr = ffi64_stret_needs_ptr(
-					inType->elements[i], &gprsUsed, &fprsUsed);
+                        case FFI_TYPE_STRUCT:
+                                needsPtr = ffi64_stret_needs_ptr(
+                                        inType->elements[i], &gprsUsed, &fprsUsed);
 
-				break;
+                                break;
 
-			default:
-				FFI_ASSERT(0);
-				break;
-		}
-	}
+                        default:
+                                FFI_ASSERT(0);
+                                break;
+                }
+        }
 
-	if (ioGPRCount)
-		*ioGPRCount = gprsUsed;
+        if (ioGPRCount)
+                *ioGPRCount = gprsUsed;
 
-	if (ioFPRCount)
-		*ioFPRCount = fprsUsed;
+        if (ioFPRCount)
+                *ioFPRCount = fprsUsed;
 
-	return needsPtr;
+        return needsPtr;
 }
 
-/*	ffi64_data_size
+/*      ffi64_data_size
 
-	Calculate the size in bytes of an ffi type.
+        Calculate the size in bytes of an ffi type.
 */
 
 unsigned int
 ffi64_data_size(
-	const ffi_type*	inType)
+        const ffi_type* inType)
 {
-	unsigned int	size = 0;
+        unsigned int    size = 0;
 
-	switch (inType->type)
-	{
-		case FFI_TYPE_UINT8:
-		case FFI_TYPE_SINT8:
-			size = 1;
-			break;
+        switch (inType->type)
+        {
+                case FFI_TYPE_UINT8:
+                case FFI_TYPE_SINT8:
+                        size = 1;
+                        break;
 
-		case FFI_TYPE_UINT16:
-		case FFI_TYPE_SINT16:
-			size = 2;
-			break;
+                case FFI_TYPE_UINT16:
+                case FFI_TYPE_SINT16:
+                        size = 2;
+                        break;
 
-		case FFI_TYPE_INT:
-		case FFI_TYPE_UINT32:
-		case FFI_TYPE_SINT32:
-		case FFI_TYPE_FLOAT:
-			size = 4;
-			break;
+                case FFI_TYPE_INT:
+                case FFI_TYPE_UINT32:
+                case FFI_TYPE_SINT32:
+                case FFI_TYPE_FLOAT:
+                        size = 4;
+                        break;
 
-		case FFI_TYPE_POINTER:
-		case FFI_TYPE_UINT64:
-		case FFI_TYPE_SINT64:
-		case FFI_TYPE_DOUBLE:
-			size = 8;
-			break;
+                case FFI_TYPE_POINTER:
+                case FFI_TYPE_UINT64:
+                case FFI_TYPE_SINT64:
+                case FFI_TYPE_DOUBLE:
+                        size = 8;
+                        break;
 
-		case FFI_TYPE_LONGDOUBLE:
-			size = 16;
-			break;
+                case FFI_TYPE_LONGDOUBLE:
+                        size = 16;
+                        break;
 
-		case FFI_TYPE_STRUCT:
-			ffi64_struct_to_reg_form(
-				inType, NULL, NULL, NULL, NULL, &size, NULL, NULL);
-			break;
+                case FFI_TYPE_STRUCT:
+                        ffi64_struct_to_reg_form(
+                                inType, NULL, NULL, NULL, NULL, &size, NULL, NULL);
+                        break;
 
-		case FFI_TYPE_VOID:
-			break;
+                case FFI_TYPE_VOID:
+                        break;
 
-		default:
-			FFI_ASSERT(0);
-			break;
-	}
+                default:
+                        FFI_ASSERT(0);
+                        break;
+        }
 
-	return size;
+        return size;
 }
 
-#endif	/*	defined(__ppc64__)	*/
-#endif	/* __ppc__ || __ppc64__ */
+#endif  /*      defined(__ppc64__)      */
+#endif  /* __ppc__ || __ppc64__ */
diff --git a/Modules/_struct.c b/Modules/_struct.c
index 74d846a..092b72c 100644
--- a/Modules/_struct.c
+++ b/Modules/_struct.c
@@ -1106,7 +1106,7 @@
     case '>':
     case '!': /* Network byte order is big-endian */
         return bigendian_table;
-    case '=': { /* Host byte order -- different from native in aligment! */
+    case '=': { /* Host byte order -- different from native in alignment! */
         int n = 1;
         char *p = (char *) &n;
         if (*p == 1)
diff --git a/Modules/_threadmodule.c b/Modules/_threadmodule.c
index c37dc20..ddaa01b 100644
--- a/Modules/_threadmodule.c
+++ b/Modules/_threadmodule.c
@@ -442,7 +442,7 @@
                                    self->args, self->kw) < 0) {
             /* we need to get rid of ldict from thread so
                we create a new one the next time we do an attr
-               acces */
+               access */
             PyDict_DelItem(tdict, self->key);
             return NULL;
         }
diff --git a/Modules/parsermodule.c b/Modules/parsermodule.c
index 77b890a..8e9e258 100644
--- a/Modules/parsermodule.c
+++ b/Modules/parsermodule.c
@@ -1554,7 +1554,7 @@
                    || strcmp(s, ">>=") == 0
                    || strcmp(s, "**=") == 0);
             if (!res)
-                err_string("illegal augmmented assignment operator");
+                err_string("illegal augmented assignment operator");
         }
     }
     else {
diff --git a/Modules/zipimport.c b/Modules/zipimport.c
index 8d04f17..d3ca28d 100644
--- a/Modules/zipimport.c
+++ b/Modules/zipimport.c
@@ -1102,7 +1102,7 @@
     return code;
 }
 
-/* Get the code object assoiciated with the module specified by
+/* Get the code object associated with the module specified by
    'fullname'. */
 static PyObject *
 get_module_code(ZipImporter *self, char *fullname,