/js/src/ctypes/libffi/configure.ac

  1dnl Process this with autoconf to create configure
  2
  3AC_PREREQ(2.63)
  4
  5AC_INIT([libffi], [3.0.10rc0], [http://gcc.gnu.org/bugs.html])
  6AC_CONFIG_HEADERS([fficonfig.h])
  7
  8AC_CANONICAL_SYSTEM
  9target_alias=${target_alias-$host_alias}
 10
 11. ${srcdir}/configure.host
 12
 13AM_INIT_AUTOMAKE
 14
 15# The same as in boehm-gc and libstdc++. Have to borrow it from there.
 16# We must force CC to /not/ be precious variables; otherwise
 17# the wrong, non-multilib-adjusted value will be used in multilibs.
 18# As a side effect, we have to subst CFLAGS ourselves.
 19# Also save and restore CFLAGS, since AC_PROG_CC will come up with
 20# defaults of its own if none are provided.
 21
 22m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
 23m4_define([_AC_ARG_VAR_PRECIOUS],[])
 24save_CFLAGS=$CFLAGS
 25AC_PROG_CC
 26CFLAGS=$save_CFLAGS
 27m4_undefine([_AC_ARG_VAR_PRECIOUS])
 28m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
 29
 30AC_SUBST(CFLAGS)
 31
 32AM_PROG_AS
 33AM_PROG_CC_C_O
 34AC_PROG_LIBTOOL
 35AC_CONFIG_MACRO_DIR([m4])
 36
 37AM_MAINTAINER_MODE
 38
 39AC_CHECK_HEADERS(sys/mman.h)
 40AC_CHECK_FUNCS(mmap)
 41AC_FUNC_MMAP_BLACKLIST
 42
 43dnl The -no-testsuite modules omit the test subdir.
 44AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
 45
 46TARGETDIR="unknown"
 47case "$host" in
 48  alpha*-*-*)
 49	TARGET=ALPHA; TARGETDIR=alpha;
 50	# Support 128-bit long double, changeable via command-line switch.
 51	HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
 52	;;
 53
 54  arm*-*-*)
 55	TARGET=ARM; TARGETDIR=arm
 56	;;
 57
 58  amd64-*-freebsd* | amd64-*-openbsd*)
 59	TARGET=X86_64; TARGETDIR=x86
 60  	;;
 61
 62  amd64-*-freebsd*)
 63	TARGET=X86_64; TARGETDIR=x86
 64	;;
 65
 66  avr32*-*-*)
 67	TARGET=AVR32; TARGETDIR=avr32
 68	;;
 69
 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
 88  i?86-*-freebsd* | i?86-*-openbsd*)
 89	TARGET=X86_FREEBSD; TARGETDIR=x86
 90	;;
 91  i?86-win32* | i?86-*-cygwin* | i?86-*-mingw* | i?86-*-os2*)
 92	TARGET=X86_WIN32; TARGETDIR=x86
 93	# All mingw/cygwin/win32 builds require this for sharedlib
 94	AM_LTLDFLAGS="-no-undefined"
 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*)
122	# Support 128-bit long double for NewABI.
123	HAVE_LONG_DOUBLE='defined(__mips64)'
124	TARGET=MIPS; TARGETDIR=mips
125	;;
126
127  moxie-*-*)
128        TARGET=MOXIE; TARGETDIR=moxie
129	;;
130
131  powerpc*-*-linux* | powerpc-*-sysv*)
132	TARGET=POWERPC; TARGETDIR=powerpc
133	;;
134  powerpc-*-beos*)
135	TARGET=POWERPC; TARGETDIR=powerpc
136	;;
137  powerpc-*-darwin*)
138	TARGET=POWERPC_DARWIN; TARGETDIR=powerpc
139	;;
140  powerpc-*-aix* | rs6000-*-aix*)
141	TARGET=POWERPC_AIX; TARGETDIR=powerpc
142	;;
143  powerpc-*-freebsd*)
144	TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc
145	;;
146  powerpc*-*-rtems*)
147	TARGET=POWERPC; TARGETDIR=powerpc
148	;;
149
150  s390-*-* | s390x-*-*)
151	TARGET=S390; TARGETDIR=s390
152	;;
153
154  sh-*-* | sh[[34]]*-*-*)
155	TARGET=SH; TARGETDIR=sh
156	;;
157  sh64-*-* | sh5*-*-*)
158	TARGET=SH64; TARGETDIR=sh64
159	;;
160
161  sparc*-*-*)
162	TARGET=SPARC; TARGETDIR=sparc
163	;;
164
165  x86_64-*-darwin*)
166	TARGET=X86_DARWIN; TARGETDIR=x86
167	;;
168
169  x86_64-*-cygwin* | x86_64-*-mingw*)
170	TARGET=X86_WIN64; TARGETDIR=x86
171	;;
172
173  x86_64-*-*)
174	TARGET=X86_64; TARGETDIR=x86
175	;;
176esac
177
178AC_SUBST(AM_RUNTESTFLAGS)
179AC_SUBST(AM_LTLDFLAGS)
180
181if test $TARGETDIR = unknown; then
182  AC_MSG_ERROR(["libffi has not been ported to $host."])
183fi
184
185AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
186AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
187AM_CONDITIONAL(X86, test x$TARGET = xX86)
188AM_CONDITIONAL(X86_FREEBSD, test x$TARGET = xX86_FREEBSD)
189AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
190AM_CONDITIONAL(X86_WIN64, test x$TARGET = xX86_WIN64)
191AM_CONDITIONAL(X86_DARWIN, test x$TARGET = xX86_DARWIN)
192AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
193AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
194AM_CONDITIONAL(M32R, test x$TARGET = xM32R)
195AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
196AM_CONDITIONAL(MOXIE, test x$TARGET = xMOXIE)
197AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
198AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
199AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
200AM_CONDITIONAL(POWERPC_FREEBSD, test x$TARGET = xPOWERPC_FREEBSD)
201AM_CONDITIONAL(ARM, test x$TARGET = xARM)
202AM_CONDITIONAL(AVR32, test x$TARGET = xAVR32)
203AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS)
204AM_CONDITIONAL(FRV, test x$TARGET = xFRV)
205AM_CONDITIONAL(S390, test x$TARGET = xS390)
206AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
207AM_CONDITIONAL(SH, test x$TARGET = xSH)
208AM_CONDITIONAL(SH64, test x$TARGET = xSH64)
209AM_CONDITIONAL(PA_LINUX, test x$TARGET = xPA_LINUX)
210AM_CONDITIONAL(PA_HPUX, test x$TARGET = xPA_HPUX)
211AM_CONDITIONAL(PA64_HPUX, test x$TARGET = xPA64_HPUX)
212
213AC_HEADER_STDC
214AC_CHECK_FUNCS(memcpy)
215AC_FUNC_ALLOCA
216
217AC_CHECK_SIZEOF(double)
218AC_CHECK_SIZEOF(long double)
219
220# Also AC_SUBST this variable for ffi.h.
221if test -z "$HAVE_LONG_DOUBLE"; then
222  HAVE_LONG_DOUBLE=0
223  if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then
224    if test $ac_cv_sizeof_long_double != 0; then
225      HAVE_LONG_DOUBLE=1
226      AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double])
227    fi
228  fi
229fi
230AC_SUBST(HAVE_LONG_DOUBLE)
231
232AC_C_BIGENDIAN
233
234AC_CACHE_CHECK([assembler .cfi pseudo-op support],
235    libffi_cv_as_cfi_pseudo_op, [
236    libffi_cv_as_cfi_pseudo_op=unknown
237    AC_TRY_COMPILE([asm (".cfi_startproc\n\t.cfi_endproc");],,
238		   [libffi_cv_as_cfi_pseudo_op=yes],
239		   [libffi_cv_as_cfi_pseudo_op=no])
240])
241if test "x$libffi_cv_as_cfi_pseudo_op" = xyes; then
242    AC_DEFINE(HAVE_AS_CFI_PSEUDO_OP, 1,
243	      [Define if your assembler supports .cfi_* directives.])
244fi
245
246if test x$TARGET = xSPARC; then
247    AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
248	libffi_cv_as_sparc_ua_pcrel, [
249	save_CFLAGS="$CFLAGS"
250	save_LDFLAGS="$LDFLAGS"
251	CFLAGS="$CFLAGS -fpic"
252	LDFLAGS="$LDFLAGS -shared"
253	AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],,
254		    [libffi_cv_as_sparc_ua_pcrel=yes],
255		    [libffi_cv_as_sparc_ua_pcrel=no])
256	CFLAGS="$save_CFLAGS"
257	LDFLAGS="$save_LDFLAGS"])
258    if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then
259	AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
260		  [Define if your assembler and linker support unaligned PC relative relocs.])
261    fi
262
263    AC_CACHE_CHECK([assembler .register pseudo-op support],
264       libffi_cv_as_register_pseudo_op, [
265       libffi_cv_as_register_pseudo_op=unknown
266       # Check if we have .register
267       AC_TRY_COMPILE([asm (".register %g2, #scratch");],,
268		       [libffi_cv_as_register_pseudo_op=yes],
269		       [libffi_cv_as_register_pseudo_op=no])
270    ])
271    if test "x$libffi_cv_as_register_pseudo_op" = xyes; then
272       AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
273	       [Define if your assembler supports .register.])
274    fi
275fi
276
277if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64; then
278    AC_CACHE_CHECK([assembler supports pc related relocs],
279	libffi_cv_as_x86_pcrel, [
280	libffi_cv_as_x86_pcrel=no
281	echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
282	if $CC $CFLAGS -c conftest.s > /dev/null; then
283	    libffi_cv_as_x86_pcrel=yes
284	fi
285	])
286    if test "x$libffi_cv_as_x86_pcrel" = xyes; then
287	AC_DEFINE(HAVE_AS_X86_PCREL, 1,
288		  [Define if your assembler supports PC relative relocs.])
289    fi
290
291    AC_CACHE_CHECK([assembler .ascii pseudo-op support],
292       libffi_cv_as_ascii_pseudo_op, [
293       libffi_cv_as_ascii_pseudo_op=unknown
294       # Check if we have .ascii
295       AC_TRY_COMPILE([asm (".ascii \"string\"");],,
296		       [libffi_cv_as_ascii_pseudo_op=yes],
297		       [libffi_cv_as_ascii_pseudo_op=no])
298    ])
299    if test "x$libffi_cv_as_ascii_pseudo_op" = xyes; then
300       AC_DEFINE(HAVE_AS_ASCII_PSEUDO_OP, 1,
301	       [Define if your assembler supports .ascii.])
302    fi
303
304    AC_CACHE_CHECK([assembler .string pseudo-op support],
305       libffi_cv_as_string_pseudo_op, [
306       libffi_cv_as_string_pseudo_op=unknown
307       # Check if we have .string
308       AC_TRY_COMPILE([asm (".string \"string\"");],,
309		       [libffi_cv_as_string_pseudo_op=yes],
310		       [libffi_cv_as_string_pseudo_op=no])
311    ])
312    if test "x$libffi_cv_as_string_pseudo_op" = xyes; then
313       AC_DEFINE(HAVE_AS_STRING_PSEUDO_OP, 1,
314	       [Define if your assembler supports .string.])
315    fi
316fi
317
318if test x$TARGET = xX86_WIN64; then
319    LT_SYS_SYMBOL_USCORE
320    if test "x$sys_symbol_underscore" = xyes; then
321        AC_DEFINE(SYMBOL_UNDERSCORE, 1, [Define if symbols are underscored.])
322    fi
323fi
324
325case "$target" in
326     # Darwin 10 (OSX 10.6) and beyond allocate non-executable pages
327     *-apple-darwin1* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
328       AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1,
329                 [Cannot use malloc on this target, so, we revert to
330                   alternative means])
331     ;;
332esac
333
334if test x$TARGET = xX86_64; then
335    AC_CACHE_CHECK([assembler supports unwind section type],
336	libffi_cv_as_x86_64_unwind_section_type, [
337	libffi_cv_as_x86_64_unwind_section_type=yes
338	echo '.section .eh_frame,"a",@unwind' > conftest.s
339	if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then
340	    libffi_cv_as_x86_64_unwind_section_type=no
341	fi
342	])
343    if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then
344	AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1,
345		  [Define if your assembler supports unwind section type.])
346    fi
347fi
348
349AC_CACHE_CHECK([whether .eh_frame section should be read-only],
350    libffi_cv_ro_eh_frame, [
351	libffi_cv_ro_eh_frame=no
352	echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
353	if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
354	    if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
355		libffi_cv_ro_eh_frame=yes
356	    elif grep '.section.*eh_frame.*#alloc' conftest.c \
357		 | grep -v '#write' > /dev/null; then
358		libffi_cv_ro_eh_frame=yes
359	    fi
360	fi
361	rm -f conftest.*
362    ])
363if test "x$libffi_cv_ro_eh_frame" = xyes; then
364    AC_DEFINE(HAVE_RO_EH_FRAME, 1,
365	      [Define if .eh_frame sections should be read-only.])
366    AC_DEFINE(EH_FRAME_FLAGS, "a",
367	      [Define to the flags needed for the .section .eh_frame directive.])
368else
369    AC_DEFINE(EH_FRAME_FLAGS, "aw",
370	      [Define to the flags needed for the .section .eh_frame directive.])
371fi
372
373AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
374    libffi_cv_hidden_visibility_attribute, [
375	echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c
376	libffi_cv_hidden_visibility_attribute=no
377	if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
378	    if grep '\.hidden.*foo' conftest.s >/dev/null; then
379		libffi_cv_hidden_visibility_attribute=yes
380	    fi
381	fi
382	rm -f conftest.*
383    ])
384if test $libffi_cv_hidden_visibility_attribute = yes; then
385    AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1,
386	      [Define if __attribute__((visibility("hidden"))) is supported.])
387fi
388
389AH_BOTTOM([
390#ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
391#ifdef LIBFFI_ASM
392#define FFI_HIDDEN(name) .hidden name
393#else
394#define FFI_HIDDEN __attribute__ ((visibility ("hidden")))
395#endif
396#else
397#ifdef LIBFFI_ASM
398#define FFI_HIDDEN(name)
399#else
400#define FFI_HIDDEN
401#endif
402#endif
403])
404
405AC_SUBST(TARGET)
406AC_SUBST(TARGETDIR)
407
408AC_SUBST(SHELL)
409
410AC_ARG_ENABLE(debug,
411[  --enable-debug          debugging mode],
412  if test "$enable_debug" = "yes"; then
413    AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.])
414  fi)
415AM_CONDITIONAL(FFI_DEBUG, test "$enable_debug" = "yes")
416
417AC_ARG_ENABLE(structs,
418[  --disable-structs       omit code for struct support],
419  if test "$enable_structs" = "no"; then
420    AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.])
421  fi)
422
423AC_ARG_ENABLE(raw-api,
424[  --disable-raw-api       make the raw api unavailable],
425  if test "$enable_raw_api" = "no"; then
426    AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.])
427  fi)
428
429AC_ARG_ENABLE(purify-safety,
430[  --enable-purify-safety  purify-safe mode],
431  if test "$enable_purify_safety" = "yes"; then
432    AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.])
433  fi)
434
435if test -n "$with_cross_host" &&
436   test x"$with_cross_host" != x"no"; then
437  toolexecdir='$(exec_prefix)/$(target_alias)'
438  toolexeclibdir='$(toolexecdir)/lib'
439else
440  toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
441  toolexeclibdir='$(libdir)'
442fi
443multi_os_directory=`$CC -print-multi-os-directory`
444case $multi_os_directory in
445  .) ;; # Avoid trailing /.
446  *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
447esac
448AC_SUBST(toolexecdir)
449AC_SUBST(toolexeclibdir)
450
451if test "${multilib}" = "yes"; then
452  multilib_arg="--enable-multilib"
453else
454  multilib_arg=
455fi
456
457AC_CONFIG_COMMANDS(include, [test -d include || mkdir include])
458AC_CONFIG_COMMANDS(src, [
459test -d src || mkdir src
460test -d src/$TARGETDIR || mkdir src/$TARGETDIR
461], [TARGETDIR="$TARGETDIR"])
462
463AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h)
464
465AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile man/Makefile libffi.pc)
466
467AC_OUTPUT