diff --git a/configure b/configure
index 5749611..5476fd4 100755
--- a/configure
+++ b/configure
@@ -689,6 +689,7 @@
 ENABLE_DOXYGEN
 ENABLE_THREADS
 ENABLE_PIC
+ENABLE_SHARED
 TARGETS_TO_BUILD
 LLVM_ENUM_TARGETS
 LLVM_ENUM_ASM_PRINTERS
@@ -770,6 +771,7 @@
 LLVMGCCDIR
 LLVMGCC_LANGS
 SHLIBEXT
+SHLIBPATH_VAR
 LLVM_PREFIX
 LLVM_BINDIR
 LLVM_LIBDIR
@@ -1402,6 +1404,8 @@
   --enable-threads        Use threads if available (default is YES)
   --enable-pic            Build LLVM with Position Independent Code (default
                           is YES)
+  --enable-shared         Build a shared library and link tools against it
+                          (default is NO)
   --enable-targets        Build specific host targets: all or
                           target1,target2,... Valid targets are: host, x86,
                           x86_64, sparc, powerpc, alpha, arm, mips, spu,
@@ -2327,7 +2331,7 @@
   msp430-*)               llvm_cv_target_arch="MSP430" ;;
   s390x-*)                llvm_cv_target_arch="SystemZ" ;;
   bfin-*)                 llvm_cv_target_arch="Blackfin" ;;
-  microblaze-*)           llvm_cv_target_arch="MBlaze" ;;
+  mblaze-*)               llvm_cv_target_arch="MBlaze" ;;
   *)                      llvm_cv_target_arch="Unknown" ;;
 esac
 fi
@@ -4867,6 +4871,25 @@
 _ACEOF
 
 
+# Check whether --enable-shared was given.
+if test "${enable_shared+set}" = set; then
+  enableval=$enable_shared;
+else
+  enableval=default
+fi
+
+case "$enableval" in
+  yes) ENABLE_SHARED=1
+ ;;
+  no)  ENABLE_SHARED=0
+ ;;
+  default) ENABLE_SHARED=0
+ ;;
+  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-shared. Use \"yes\" or \"no\"" >&5
+echo "$as_me: error: Invalid setting for --enable-shared. Use \"yes\" or \"no\"" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
+
 TARGETS_TO_BUILD=""
 # Check whether --enable-targets was given.
 if test "${enable_targets+set}" = set; then
@@ -11110,7 +11133,7 @@
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 11108 "configure"
+#line 11136 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -19691,6 +19714,9 @@
 SHLIBEXT=$libltdl_cv_shlibext
 
 
+SHLIBPATH_VAR=$libltdl_cv_shlibpath_var
+
+
 # Translate the various configuration directories and other basic
 # information into substitutions that will end up in Makefile.config.in
 # that these configured values can be used by the makefiles
@@ -20748,6 +20774,7 @@
 ENABLE_DOXYGEN!$ENABLE_DOXYGEN$ac_delim
 ENABLE_THREADS!$ENABLE_THREADS$ac_delim
 ENABLE_PIC!$ENABLE_PIC$ac_delim
+ENABLE_SHARED!$ENABLE_SHARED$ac_delim
 TARGETS_TO_BUILD!$TARGETS_TO_BUILD$ac_delim
 LLVM_ENUM_TARGETS!$LLVM_ENUM_TARGETS$ac_delim
 LLVM_ENUM_ASM_PRINTERS!$LLVM_ENUM_ASM_PRINTERS$ac_delim
@@ -20757,7 +20784,6 @@
 CLANGPATH!$CLANGPATH$ac_delim
 CLANGXXPATH!$CLANGXXPATH$ac_delim
 ENABLE_BUILT_CLANG!$ENABLE_BUILT_CLANG$ac_delim
-OPTIMIZE_OPTION!$OPTIMIZE_OPTION$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -20799,6 +20825,7 @@
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+OPTIMIZE_OPTION!$OPTIMIZE_OPTION$ac_delim
 EXTRA_OPTIONS!$EXTRA_OPTIONS$ac_delim
 BINUTILS_INCDIR!$BINUTILS_INCDIR$ac_delim
 ENABLE_LLVMC_DYNAMIC!$ENABLE_LLVMC_DYNAMIC$ac_delim
@@ -20870,6 +20897,7 @@
 LLVMGCCDIR!$LLVMGCCDIR$ac_delim
 LLVMGCC_LANGS!$LLVMGCC_LANGS$ac_delim
 SHLIBEXT!$SHLIBEXT$ac_delim
+SHLIBPATH_VAR!$SHLIBPATH_VAR$ac_delim
 LLVM_PREFIX!$LLVM_PREFIX$ac_delim
 LLVM_BINDIR!$LLVM_BINDIR$ac_delim
 LLVM_LIBDIR!$LLVM_LIBDIR$ac_delim
@@ -20890,7 +20918,7 @@
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 89; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 91; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5