Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 1 | dnl Process this with autoconf to create configure |
| 2 | |
Anthony Green | 115ab36 | 2009-12-24 00:22:00 -0500 | [diff] [blame] | 3 | AC_PREREQ(2.63) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 4 | |
Anthony Green | c3042af | 2010-01-01 08:08:02 -0500 | [diff] [blame] | 5 | AC_INIT([libffi], [3.0.10rc0], [http://gcc.gnu.org/bugs.html]) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 6 | AC_CONFIG_HEADERS([fficonfig.h]) |
| 7 | |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 8 | AC_CANONICAL_SYSTEM |
| 9 | target_alias=${target_alias-$host_alias} |
| 10 | |
| 11 | . ${srcdir}/configure.host |
| 12 | |
| 13 | AM_INIT_AUTOMAKE |
| 14 | |
| 15 | # The same as in boehm-gc and libstdc++. Have to borrow it from there. |
| 16 | # We must force CC to /not/ be precious variables; otherwise |
| 17 | # the wrong, non-multilib-adjusted value will be used in multilibs. |
| 18 | # As a side effect, we have to subst CFLAGS ourselves. |
Anthony Green | 00d0b59 | 2010-08-05 14:56:53 -0400 | [diff] [blame] | 19 | # Also save and restore CFLAGS, since AC_PROG_CC will come up with |
| 20 | # defaults of its own if none are provided. |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 21 | |
| 22 | m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) |
| 23 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) |
Anthony Green | 00d0b59 | 2010-08-05 14:56:53 -0400 | [diff] [blame] | 24 | save_CFLAGS=$CFLAGS |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 25 | AC_PROG_CC |
Anthony Green | 00d0b59 | 2010-08-05 14:56:53 -0400 | [diff] [blame] | 26 | CFLAGS=$save_CFLAGS |
Anthony Green | d22de05 | 2009-12-25 02:04:23 -0500 | [diff] [blame] | 27 | m4_undefine([_AC_ARG_VAR_PRECIOUS]) |
Anthony Green | 5cbe205 | 2009-10-04 23:53:11 -0400 | [diff] [blame] | 28 | m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 29 | |
| 30 | AC_SUBST(CFLAGS) |
| 31 | |
| 32 | AM_PROG_AS |
| 33 | AM_PROG_CC_C_O |
| 34 | AC_PROG_LIBTOOL |
Anthony Green | 115ab36 | 2009-12-24 00:22:00 -0500 | [diff] [blame] | 35 | AC_CONFIG_MACRO_DIR([m4]) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 36 | |
| 37 | AM_MAINTAINER_MODE |
| 38 | |
| 39 | AC_CHECK_HEADERS(sys/mman.h) |
| 40 | AC_CHECK_FUNCS(mmap) |
| 41 | AC_FUNC_MMAP_BLACKLIST |
| 42 | |
| 43 | dnl The -no-testsuite modules omit the test subdir. |
| 44 | AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite) |
| 45 | |
| 46 | TARGETDIR="unknown" |
| 47 | case "$host" in |
| 48 | alpha*-*-*) |
| 49 | TARGET=ALPHA; TARGETDIR=alpha; |
Anthony Green | 6309741 | 2010-05-05 20:14:56 -0400 | [diff] [blame] | 50 | # Support 128-bit long double, changeable via command-line switch. |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 51 | HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)' |
| 52 | ;; |
| 53 | |
| 54 | arm*-*-*) |
| 55 | TARGET=ARM; TARGETDIR=arm |
| 56 | ;; |
| 57 | |
Anthony Green | 01c7875 | 2009-12-26 10:05:18 -0500 | [diff] [blame] | 58 | amd64-*-freebsd* | amd64-*-openbsd*) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 59 | TARGET=X86_64; TARGETDIR=x86 |
Anthony Green | 5cbe205 | 2009-10-04 23:53:11 -0400 | [diff] [blame] | 60 | ;; |
| 61 | |
Anthony Green | c3042af | 2010-01-01 08:08:02 -0500 | [diff] [blame] | 62 | amd64-*-freebsd*) |
| 63 | TARGET=X86_64; TARGETDIR=x86 |
| 64 | ;; |
| 65 | |
Anthony Green | 115ab36 | 2009-12-24 00:22:00 -0500 | [diff] [blame] | 66 | avr32*-*-*) |
| 67 | TARGET=AVR32; TARGETDIR=avr32 |
| 68 | ;; |
| 69 | |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 70 | cris-*-*) |
| 71 | TARGET=LIBFFI_CRIS; TARGETDIR=cris |
| 72 | ;; |
| 73 | |
| 74 | frv-*-*) |
| 75 | TARGET=FRV; TARGETDIR=frv |
| 76 | ;; |
| 77 | |
| 78 | hppa*-*-linux* | parisc*-*-linux*) |
| 79 | TARGET=PA_LINUX; TARGETDIR=pa |
| 80 | ;; |
| 81 | hppa*64-*-hpux*) |
| 82 | TARGET=PA64_HPUX; TARGETDIR=pa |
| 83 | ;; |
| 84 | hppa*-*-hpux*) |
| 85 | TARGET=PA_HPUX; TARGETDIR=pa |
| 86 | ;; |
| 87 | |
Anthony Green | 3425a76 | 2009-10-04 23:57:29 -0400 | [diff] [blame] | 88 | i?86-*-freebsd* | i?86-*-openbsd*) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 89 | TARGET=X86_FREEBSD; TARGETDIR=x86 |
| 90 | ;; |
Anthony Green | f2c2a4f | 2010-04-13 10:19:28 -0400 | [diff] [blame] | 91 | i?86-win32* | i?86-*-cygwin* | i?86-*-mingw* | i?86-*-os2*) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 92 | TARGET=X86_WIN32; TARGETDIR=x86 |
Anthony Green | 1fe3dc7 | 2009-12-25 01:39:00 -0500 | [diff] [blame] | 93 | # All mingw/cygwin/win32 builds require this for sharedlib |
| 94 | AM_LTLDFLAGS="-no-undefined" |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 95 | ;; |
| 96 | i?86-*-darwin*) |
| 97 | TARGET=X86_DARWIN; TARGETDIR=x86 |
| 98 | ;; |
| 99 | i?86-*-solaris2.1[[0-9]]*) |
| 100 | TARGET=X86_64; TARGETDIR=x86 |
| 101 | ;; |
| 102 | i?86-*-*) |
| 103 | TARGET=X86; TARGETDIR=x86 |
| 104 | ;; |
| 105 | |
| 106 | ia64*-*-*) |
| 107 | TARGET=IA64; TARGETDIR=ia64 |
| 108 | ;; |
| 109 | |
| 110 | m32r*-*-*) |
| 111 | TARGET=M32R; TARGETDIR=m32r |
| 112 | ;; |
| 113 | |
| 114 | m68k-*-*) |
| 115 | TARGET=M68K; TARGETDIR=m68k |
| 116 | ;; |
| 117 | |
| 118 | mips-sgi-irix5.* | mips-sgi-irix6.*) |
| 119 | TARGET=MIPS; TARGETDIR=mips |
| 120 | ;; |
| 121 | mips*-*-linux*) |
Anthony Green | 14e2e92 | 2009-12-27 21:03:33 -0500 | [diff] [blame] | 122 | # Support 128-bit long double for NewABI. |
| 123 | HAVE_LONG_DOUBLE='defined(__mips64)' |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 124 | TARGET=MIPS; TARGETDIR=mips |
| 125 | ;; |
| 126 | |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 127 | powerpc*-*-linux* | powerpc-*-sysv*) |
| 128 | TARGET=POWERPC; TARGETDIR=powerpc |
| 129 | ;; |
| 130 | powerpc-*-beos*) |
| 131 | TARGET=POWERPC; TARGETDIR=powerpc |
| 132 | ;; |
| 133 | powerpc-*-darwin*) |
| 134 | TARGET=POWERPC_DARWIN; TARGETDIR=powerpc |
| 135 | ;; |
| 136 | powerpc-*-aix* | rs6000-*-aix*) |
| 137 | TARGET=POWERPC_AIX; TARGETDIR=powerpc |
| 138 | ;; |
| 139 | powerpc-*-freebsd*) |
| 140 | TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc |
| 141 | ;; |
Anthony Green | 2db7261 | 2010-11-21 10:50:56 -0500 | [diff] [blame^] | 142 | powerpc64-*-freebsd*) |
| 143 | TARGET=POWERPC; TARGETDIR=powerpc |
| 144 | ;; |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 145 | powerpc*-*-rtems*) |
| 146 | TARGET=POWERPC; TARGETDIR=powerpc |
| 147 | ;; |
| 148 | |
| 149 | s390-*-* | s390x-*-*) |
| 150 | TARGET=S390; TARGETDIR=s390 |
| 151 | ;; |
| 152 | |
| 153 | sh-*-* | sh[[34]]*-*-*) |
| 154 | TARGET=SH; TARGETDIR=sh |
| 155 | ;; |
| 156 | sh64-*-* | sh5*-*-*) |
| 157 | TARGET=SH64; TARGETDIR=sh64 |
| 158 | ;; |
| 159 | |
| 160 | sparc*-*-*) |
| 161 | TARGET=SPARC; TARGETDIR=sparc |
| 162 | ;; |
| 163 | |
| 164 | x86_64-*-darwin*) |
| 165 | TARGET=X86_DARWIN; TARGETDIR=x86 |
| 166 | ;; |
| 167 | |
| 168 | x86_64-*-cygwin* | x86_64-*-mingw*) |
| 169 | TARGET=X86_WIN64; TARGETDIR=x86 |
| 170 | ;; |
| 171 | |
| 172 | x86_64-*-*) |
| 173 | TARGET=X86_64; TARGETDIR=x86 |
| 174 | ;; |
| 175 | esac |
| 176 | |
| 177 | AC_SUBST(AM_RUNTESTFLAGS) |
Anthony Green | 1fe3dc7 | 2009-12-25 01:39:00 -0500 | [diff] [blame] | 178 | AC_SUBST(AM_LTLDFLAGS) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 179 | |
| 180 | if test $TARGETDIR = unknown; then |
| 181 | AC_MSG_ERROR(["libffi has not been ported to $host."]) |
| 182 | fi |
| 183 | |
| 184 | AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS) |
| 185 | AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC) |
| 186 | AM_CONDITIONAL(X86, test x$TARGET = xX86) |
| 187 | AM_CONDITIONAL(X86_FREEBSD, test x$TARGET = xX86_FREEBSD) |
| 188 | AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32) |
| 189 | AM_CONDITIONAL(X86_WIN64, test x$TARGET = xX86_WIN64) |
| 190 | AM_CONDITIONAL(X86_DARWIN, test x$TARGET = xX86_DARWIN) |
| 191 | AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA) |
| 192 | AM_CONDITIONAL(IA64, test x$TARGET = xIA64) |
| 193 | AM_CONDITIONAL(M32R, test x$TARGET = xM32R) |
| 194 | AM_CONDITIONAL(M68K, test x$TARGET = xM68K) |
Anthony Green | 3f5b137 | 2010-07-12 14:39:18 -0400 | [diff] [blame] | 195 | AM_CONDITIONAL(MOXIE, test x$TARGET = xMOXIE) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 196 | AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC) |
| 197 | AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX) |
| 198 | AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN) |
| 199 | AM_CONDITIONAL(POWERPC_FREEBSD, test x$TARGET = xPOWERPC_FREEBSD) |
| 200 | AM_CONDITIONAL(ARM, test x$TARGET = xARM) |
Anthony Green | 2340e7a | 2009-10-04 23:53:17 -0400 | [diff] [blame] | 201 | AM_CONDITIONAL(AVR32, test x$TARGET = xAVR32) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 202 | AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS) |
| 203 | AM_CONDITIONAL(FRV, test x$TARGET = xFRV) |
| 204 | AM_CONDITIONAL(S390, test x$TARGET = xS390) |
| 205 | AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64) |
| 206 | AM_CONDITIONAL(SH, test x$TARGET = xSH) |
| 207 | AM_CONDITIONAL(SH64, test x$TARGET = xSH64) |
| 208 | AM_CONDITIONAL(PA_LINUX, test x$TARGET = xPA_LINUX) |
| 209 | AM_CONDITIONAL(PA_HPUX, test x$TARGET = xPA_HPUX) |
| 210 | AM_CONDITIONAL(PA64_HPUX, test x$TARGET = xPA64_HPUX) |
| 211 | |
| 212 | AC_HEADER_STDC |
| 213 | AC_CHECK_FUNCS(memcpy) |
| 214 | AC_FUNC_ALLOCA |
| 215 | |
| 216 | AC_CHECK_SIZEOF(double) |
| 217 | AC_CHECK_SIZEOF(long double) |
| 218 | |
| 219 | # Also AC_SUBST this variable for ffi.h. |
| 220 | if test -z "$HAVE_LONG_DOUBLE"; then |
| 221 | HAVE_LONG_DOUBLE=0 |
| 222 | if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then |
| 223 | if test $ac_cv_sizeof_long_double != 0; then |
| 224 | HAVE_LONG_DOUBLE=1 |
| 225 | AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double]) |
| 226 | fi |
| 227 | fi |
| 228 | fi |
| 229 | AC_SUBST(HAVE_LONG_DOUBLE) |
| 230 | |
| 231 | AC_C_BIGENDIAN |
| 232 | |
| 233 | AC_CACHE_CHECK([assembler .cfi pseudo-op support], |
| 234 | libffi_cv_as_cfi_pseudo_op, [ |
| 235 | libffi_cv_as_cfi_pseudo_op=unknown |
| 236 | AC_TRY_COMPILE([asm (".cfi_startproc\n\t.cfi_endproc");],, |
| 237 | [libffi_cv_as_cfi_pseudo_op=yes], |
| 238 | [libffi_cv_as_cfi_pseudo_op=no]) |
| 239 | ]) |
| 240 | if test "x$libffi_cv_as_cfi_pseudo_op" = xyes; then |
| 241 | AC_DEFINE(HAVE_AS_CFI_PSEUDO_OP, 1, |
| 242 | [Define if your assembler supports .cfi_* directives.]) |
| 243 | fi |
| 244 | |
| 245 | if test x$TARGET = xSPARC; then |
| 246 | AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs], |
| 247 | libffi_cv_as_sparc_ua_pcrel, [ |
| 248 | save_CFLAGS="$CFLAGS" |
| 249 | save_LDFLAGS="$LDFLAGS" |
| 250 | CFLAGS="$CFLAGS -fpic" |
| 251 | LDFLAGS="$LDFLAGS -shared" |
| 252 | AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],, |
| 253 | [libffi_cv_as_sparc_ua_pcrel=yes], |
| 254 | [libffi_cv_as_sparc_ua_pcrel=no]) |
| 255 | CFLAGS="$save_CFLAGS" |
| 256 | LDFLAGS="$save_LDFLAGS"]) |
| 257 | if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then |
| 258 | AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1, |
| 259 | [Define if your assembler and linker support unaligned PC relative relocs.]) |
| 260 | fi |
| 261 | |
| 262 | AC_CACHE_CHECK([assembler .register pseudo-op support], |
| 263 | libffi_cv_as_register_pseudo_op, [ |
| 264 | libffi_cv_as_register_pseudo_op=unknown |
| 265 | # Check if we have .register |
| 266 | AC_TRY_COMPILE([asm (".register %g2, #scratch");],, |
| 267 | [libffi_cv_as_register_pseudo_op=yes], |
| 268 | [libffi_cv_as_register_pseudo_op=no]) |
| 269 | ]) |
| 270 | if test "x$libffi_cv_as_register_pseudo_op" = xyes; then |
| 271 | AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1, |
| 272 | [Define if your assembler supports .register.]) |
| 273 | fi |
| 274 | fi |
| 275 | |
| 276 | if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64; then |
| 277 | AC_CACHE_CHECK([assembler supports pc related relocs], |
| 278 | libffi_cv_as_x86_pcrel, [ |
| 279 | libffi_cv_as_x86_pcrel=yes |
| 280 | echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s |
Anthony Green | 3f5b137 | 2010-07-12 14:39:18 -0400 | [diff] [blame] | 281 | if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 282 | libffi_cv_as_x86_pcrel=no |
| 283 | fi |
| 284 | ]) |
| 285 | if test "x$libffi_cv_as_x86_pcrel" = xyes; then |
| 286 | AC_DEFINE(HAVE_AS_X86_PCREL, 1, |
| 287 | [Define if your assembler supports PC relative relocs.]) |
| 288 | fi |
Anthony Green | 3f5b137 | 2010-07-12 14:39:18 -0400 | [diff] [blame] | 289 | |
| 290 | AC_CACHE_CHECK([assembler .ascii pseudo-op support], |
| 291 | libffi_cv_as_ascii_pseudo_op, [ |
| 292 | libffi_cv_as_ascii_pseudo_op=unknown |
| 293 | # Check if we have .ascii |
| 294 | AC_TRY_COMPILE([asm (".ascii \"string\"");],, |
| 295 | [libffi_cv_as_ascii_pseudo_op=yes], |
| 296 | [libffi_cv_as_ascii_pseudo_op=no]) |
| 297 | ]) |
| 298 | if test "x$libffi_cv_as_ascii_pseudo_op" = xyes; then |
| 299 | AC_DEFINE(HAVE_AS_ASCII_PSEUDO_OP, 1, |
| 300 | [Define if your assembler supports .ascii.]) |
| 301 | fi |
| 302 | |
| 303 | AC_CACHE_CHECK([assembler .string pseudo-op support], |
| 304 | libffi_cv_as_string_pseudo_op, [ |
| 305 | libffi_cv_as_string_pseudo_op=unknown |
| 306 | # Check if we have .string |
| 307 | AC_TRY_COMPILE([asm (".string \"string\"");],, |
| 308 | [libffi_cv_as_string_pseudo_op=yes], |
| 309 | [libffi_cv_as_string_pseudo_op=no]) |
| 310 | ]) |
| 311 | if test "x$libffi_cv_as_string_pseudo_op" = xyes; then |
| 312 | AC_DEFINE(HAVE_AS_STRING_PSEUDO_OP, 1, |
| 313 | [Define if your assembler supports .string.]) |
| 314 | fi |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 315 | fi |
| 316 | |
Anthony Green | e4a91de | 2009-10-05 00:16:17 -0400 | [diff] [blame] | 317 | case "$target" in |
Anthony Green | 0cfe60e | 2009-12-29 10:06:04 -0500 | [diff] [blame] | 318 | *-apple-darwin10* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*) |
| 319 | AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1, |
| 320 | [Cannot use malloc on this target, so, we revert to |
| 321 | alternative means]) |
| 322 | ;; |
| 323 | esac |
Anthony Green | e4a91de | 2009-10-05 00:16:17 -0400 | [diff] [blame] | 324 | |
Anthony Green | 3f5b137 | 2010-07-12 14:39:18 -0400 | [diff] [blame] | 325 | if test x$TARGET = xX86_64; then |
| 326 | AC_CACHE_CHECK([assembler supports unwind section type], |
| 327 | libffi_cv_as_x86_64_unwind_section_type, [ |
| 328 | libffi_cv_as_x86_64_unwind_section_type=yes |
| 329 | echo '.section .eh_frame,"a",@unwind' > conftest.s |
| 330 | if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then |
| 331 | libffi_cv_as_x86_64_unwind_section_type=no |
| 332 | fi |
| 333 | ]) |
| 334 | if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then |
| 335 | AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1, |
| 336 | [Define if your assembler supports unwind section type.]) |
| 337 | fi |
| 338 | fi |
| 339 | |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 340 | AC_CACHE_CHECK([whether .eh_frame section should be read-only], |
| 341 | libffi_cv_ro_eh_frame, [ |
| 342 | libffi_cv_ro_eh_frame=no |
| 343 | echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c |
| 344 | if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then |
| 345 | if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then |
| 346 | libffi_cv_ro_eh_frame=yes |
| 347 | elif grep '.section.*eh_frame.*#alloc' conftest.c \ |
| 348 | | grep -v '#write' > /dev/null; then |
| 349 | libffi_cv_ro_eh_frame=yes |
| 350 | fi |
| 351 | fi |
| 352 | rm -f conftest.* |
| 353 | ]) |
| 354 | if test "x$libffi_cv_ro_eh_frame" = xyes; then |
| 355 | AC_DEFINE(HAVE_RO_EH_FRAME, 1, |
| 356 | [Define if .eh_frame sections should be read-only.]) |
| 357 | AC_DEFINE(EH_FRAME_FLAGS, "a", |
| 358 | [Define to the flags needed for the .section .eh_frame directive.]) |
| 359 | else |
| 360 | AC_DEFINE(EH_FRAME_FLAGS, "aw", |
| 361 | [Define to the flags needed for the .section .eh_frame directive.]) |
| 362 | fi |
| 363 | |
| 364 | AC_CACHE_CHECK([for __attribute__((visibility("hidden")))], |
| 365 | libffi_cv_hidden_visibility_attribute, [ |
| 366 | echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c |
| 367 | libffi_cv_hidden_visibility_attribute=no |
| 368 | if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
| 369 | if grep '\.hidden.*foo' conftest.s >/dev/null; then |
| 370 | libffi_cv_hidden_visibility_attribute=yes |
| 371 | fi |
| 372 | fi |
| 373 | rm -f conftest.* |
| 374 | ]) |
| 375 | if test $libffi_cv_hidden_visibility_attribute = yes; then |
| 376 | AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1, |
| 377 | [Define if __attribute__((visibility("hidden"))) is supported.]) |
| 378 | fi |
| 379 | |
| 380 | AH_BOTTOM([ |
| 381 | #ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE |
| 382 | #ifdef LIBFFI_ASM |
| 383 | #define FFI_HIDDEN(name) .hidden name |
| 384 | #else |
| 385 | #define FFI_HIDDEN __attribute__ ((visibility ("hidden"))) |
| 386 | #endif |
| 387 | #else |
| 388 | #ifdef LIBFFI_ASM |
| 389 | #define FFI_HIDDEN(name) |
| 390 | #else |
| 391 | #define FFI_HIDDEN |
| 392 | #endif |
| 393 | #endif |
| 394 | ]) |
| 395 | |
| 396 | AC_SUBST(TARGET) |
| 397 | AC_SUBST(TARGETDIR) |
| 398 | |
| 399 | AC_SUBST(SHELL) |
| 400 | |
| 401 | AC_ARG_ENABLE(debug, |
| 402 | [ --enable-debug debugging mode], |
| 403 | if test "$enable_debug" = "yes"; then |
| 404 | AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.]) |
| 405 | fi) |
Anthony Green | 00d0b59 | 2010-08-05 14:56:53 -0400 | [diff] [blame] | 406 | AM_CONDITIONAL(FFI_DEBUG, test "$enable_debug" = "yes") |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 407 | |
| 408 | AC_ARG_ENABLE(structs, |
| 409 | [ --disable-structs omit code for struct support], |
| 410 | if test "$enable_structs" = "no"; then |
| 411 | AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.]) |
| 412 | fi) |
| 413 | |
| 414 | AC_ARG_ENABLE(raw-api, |
| 415 | [ --disable-raw-api make the raw api unavailable], |
| 416 | if test "$enable_raw_api" = "no"; then |
| 417 | AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.]) |
| 418 | fi) |
| 419 | |
| 420 | AC_ARG_ENABLE(purify-safety, |
| 421 | [ --enable-purify-safety purify-safe mode], |
| 422 | if test "$enable_purify_safety" = "yes"; then |
| 423 | AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.]) |
| 424 | fi) |
| 425 | |
| 426 | if test -n "$with_cross_host" && |
| 427 | test x"$with_cross_host" != x"no"; then |
| 428 | toolexecdir='$(exec_prefix)/$(target_alias)' |
| 429 | toolexeclibdir='$(toolexecdir)/lib' |
| 430 | else |
| 431 | toolexecdir='$(libdir)/gcc-lib/$(target_alias)' |
| 432 | toolexeclibdir='$(libdir)' |
| 433 | fi |
| 434 | multi_os_directory=`$CC -print-multi-os-directory` |
| 435 | case $multi_os_directory in |
| 436 | .) ;; # Avoid trailing /. |
| 437 | *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; |
| 438 | esac |
| 439 | AC_SUBST(toolexecdir) |
| 440 | AC_SUBST(toolexeclibdir) |
| 441 | |
| 442 | if test "${multilib}" = "yes"; then |
| 443 | multilib_arg="--enable-multilib" |
| 444 | else |
| 445 | multilib_arg= |
| 446 | fi |
| 447 | |
| 448 | AC_CONFIG_COMMANDS(include, [test -d include || mkdir include]) |
| 449 | AC_CONFIG_COMMANDS(src, [ |
| 450 | test -d src || mkdir src |
| 451 | test -d src/$TARGETDIR || mkdir src/$TARGETDIR |
| 452 | ], [TARGETDIR="$TARGETDIR"]) |
| 453 | |
| 454 | AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h) |
| 455 | |
Anthony Green | 5cbe205 | 2009-10-04 23:53:11 -0400 | [diff] [blame] | 456 | AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile man/Makefile libffi.pc) |
Anthony Green | c6dddbd | 2009-10-04 08:11:33 -0400 | [diff] [blame] | 457 | |
| 458 | AC_OUTPUT |