[thirdparty/gcc.git] / libffi / configure.ac

dnl Process this with autoconf to create configure

AC_PREREQ(2.64)

AC_INIT([libffi], [3.0.9], [http://gcc.gnu.org/bugs.html])
AC_CONFIG_HEADERS([fficonfig.h])

AM_ENABLE_MULTILIB(, ..)

AC_CANONICAL_SYSTEM
target_alias=${target_alias-$host_alias}

. ${srcdir}/configure.host

AM_INIT_AUTOMAKE

# The same as in boehm-gc and libstdc++. Have to borrow it from there.
# We must force CC to /not/ be precious variables; otherwise
# the wrong, non-multilib-adjusted value will be used in multilibs.
# As a side effect, we have to subst CFLAGS ourselves.

m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])

AC_SUBST(CFLAGS)

AM_PROG_AS
AM_PROG_CC_C_O
AC_PROG_LIBTOOL

AM_MAINTAINER_MODE

AC_CHECK_HEADERS(sys/mman.h)
AC_CHECK_FUNCS(mmap)
AC_FUNC_MMAP_BLACKLIST

dnl The -no-testsuite modules omit the test subdir.
AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)

TARGETDIR="unknown"
case "$host" in
  alpha*-*-*)
	TARGET=ALPHA; TARGETDIR=alpha;
	# Support 128-bit long double, changable via command-line switch.
	HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
	;;

  arm*-*-*)
	TARGET=ARM; TARGETDIR=arm
	;;

  amd64-*-freebsd* | amd64-*-openbsd*)
	TARGET=X86_64; TARGETDIR=x86
	;;

  avr32*-*-*)
	TARGET=AVR32; TARGETDIR=avr32
	;;

  cris-*-*)
	TARGET=LIBFFI_CRIS; TARGETDIR=cris
	;;

  frv-*-*)
	TARGET=FRV; TARGETDIR=frv
	;;

  hppa*-*-linux* | parisc*-*-linux*)
	TARGET=PA_LINUX; TARGETDIR=pa
	;;
  hppa*64-*-hpux*)
	TARGET=PA64_HPUX; TARGETDIR=pa
	;;
  hppa*-*-hpux*)
	TARGET=PA_HPUX; TARGETDIR=pa
	;;

  i?86-*-freebsd* | i?86-*-openbsd*)
	TARGET=X86_FREEBSD; TARGETDIR=x86
	;;
  i?86-win32* | i?86-*-cygwin* | i?86-*-mingw*)
	TARGET=X86_WIN32; TARGETDIR=x86
	# All mingw/cygwin/win32 builds require this for sharedlib
	AM_LTLDFLAGS="-no-undefined"
	;;
  i?86-*-darwin*)
	TARGET=X86_DARWIN; TARGETDIR=x86
	;;
  i?86-*-solaris2.1[[0-9]]*)
	TARGET=X86_64; TARGETDIR=x86
	;;
  i?86-*-*)
	TARGET=X86; TARGETDIR=x86
	;;

  ia64*-*-*)
	TARGET=IA64; TARGETDIR=ia64
	;;

  m32r*-*-*)
	TARGET=M32R; TARGETDIR=m32r
	;;

  m68k-*-*)
	TARGET=M68K; TARGETDIR=m68k
	;;

  mips-sgi-irix5.* | mips-sgi-irix6.*)
	TARGET=MIPS; TARGETDIR=mips
	;;
  mips*-*-linux*)
	# Support 128-bit long double for NewABI.
	HAVE_LONG_DOUBLE='defined(__mips64)'
	TARGET=MIPS; TARGETDIR=mips
	;;

  powerpc*-*-linux* | powerpc-*-sysv*)
	TARGET=POWERPC; TARGETDIR=powerpc
	;;
  powerpc-*-beos*)
	TARGET=POWERPC; TARGETDIR=powerpc
	;;
  powerpc-*-darwin*)
	TARGET=POWERPC_DARWIN; TARGETDIR=powerpc
	;;
  powerpc-*-aix* | rs6000-*-aix*)
	TARGET=POWERPC_AIX; TARGETDIR=powerpc
	;;
  powerpc-*-freebsd*)
	TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc
	;;
  powerpc*-*-rtems*)
	TARGET=POWERPC; TARGETDIR=powerpc
	;;

  s390-*-* | s390x-*-*)
	TARGET=S390; TARGETDIR=s390
	;;

  sh-*-* | sh[[34]]*-*-*)
	TARGET=SH; TARGETDIR=sh
	;;
  sh64-*-* | sh5*-*-*)
	TARGET=SH64; TARGETDIR=sh64
	;;

  sparc*-*-*)
	TARGET=SPARC; TARGETDIR=sparc
	;;

  x86_64-*-darwin*)
	TARGET=X86_DARWIN; TARGETDIR=x86
	;;

  x86_64-*-cygwin* | x86_64-*-mingw*)
	TARGET=X86_WIN64; TARGETDIR=x86
	;;

  x86_64-*-*)
	TARGET=X86_64; TARGETDIR=x86
	;;
esac

AC_SUBST(AM_RUNTESTFLAGS)
AC_SUBST(AM_LTLDFLAGS)

if test $TARGETDIR = unknown; then
  AC_MSG_ERROR(["libffi has not been ported to $host."])
fi

AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
AM_CONDITIONAL(X86, test x$TARGET = xX86)
AM_CONDITIONAL(X86_FREEBSD, test x$TARGET = xX86_FREEBSD)
AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
AM_CONDITIONAL(X86_WIN64, test x$TARGET = xX86_WIN64)
AM_CONDITIONAL(X86_DARWIN, test x$TARGET = xX86_DARWIN)
AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
AM_CONDITIONAL(M32R, test x$TARGET = xM32R)
AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
AM_CONDITIONAL(POWERPC_FREEBSD, test x$TARGET = xPOWERPC_FREEBSD)
AM_CONDITIONAL(ARM, test x$TARGET = xARM)
AM_CONDITIONAL(AVR32, test x$TARGET = xAVR32)
AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS)
AM_CONDITIONAL(FRV, test x$TARGET = xFRV)
AM_CONDITIONAL(S390, test x$TARGET = xS390)
AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
AM_CONDITIONAL(SH, test x$TARGET = xSH)
AM_CONDITIONAL(SH64, test x$TARGET = xSH64)
AM_CONDITIONAL(PA_LINUX, test x$TARGET = xPA_LINUX)
AM_CONDITIONAL(PA_HPUX, test x$TARGET = xPA_HPUX)
AM_CONDITIONAL(PA64_HPUX, test x$TARGET = xPA64_HPUX)

AC_HEADER_STDC
AC_CHECK_FUNCS(memcpy)
AC_FUNC_ALLOCA

AC_CHECK_SIZEOF(double)
AC_CHECK_SIZEOF(long double)

# Also AC_SUBST this variable for ffi.h.
if test -z "$HAVE_LONG_DOUBLE"; then
  HAVE_LONG_DOUBLE=0
  if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then
    if test $ac_cv_sizeof_long_double != 0; then
      HAVE_LONG_DOUBLE=1
      AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double])
    fi
  fi
fi
AC_SUBST(HAVE_LONG_DOUBLE)

AC_C_BIGENDIAN

AC_CACHE_CHECK([assembler .cfi pseudo-op support],
    libffi_cv_as_cfi_pseudo_op, [
    libffi_cv_as_cfi_pseudo_op=unknown
    AC_TRY_COMPILE([asm (".cfi_startproc\n\t.cfi_endproc");],,
		   [libffi_cv_as_cfi_pseudo_op=yes],
		   [libffi_cv_as_cfi_pseudo_op=no])
])
if test "x$libffi_cv_as_cfi_pseudo_op" = xyes; then
    AC_DEFINE(HAVE_AS_CFI_PSEUDO_OP, 1,
	      [Define if your assembler supports .cfi_* directives.])
fi

if test x$TARGET = xSPARC; then
    AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
	libffi_cv_as_sparc_ua_pcrel, [
	save_CFLAGS="$CFLAGS"
	save_LDFLAGS="$LDFLAGS"
	CFLAGS="$CFLAGS -fpic"
	LDFLAGS="$LDFLAGS -shared"
	AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],,
		    [libffi_cv_as_sparc_ua_pcrel=yes],
		    [libffi_cv_as_sparc_ua_pcrel=no])
	CFLAGS="$save_CFLAGS"
	LDFLAGS="$save_LDFLAGS"])
    if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then
	AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
		  [Define if your assembler and linker support unaligned PC relative relocs.])
    fi

    AC_CACHE_CHECK([assembler .register pseudo-op support],
       libffi_cv_as_register_pseudo_op, [
       libffi_cv_as_register_pseudo_op=unknown
       # Check if we have .register
       AC_TRY_COMPILE([asm (".register %g2, #scratch");],,
		       [libffi_cv_as_register_pseudo_op=yes],
		       [libffi_cv_as_register_pseudo_op=no])
    ])
    if test "x$libffi_cv_as_register_pseudo_op" = xyes; then
       AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
	       [Define if your assembler supports .register.])
    fi
fi

if test x$TARGET = xX86 || test x$TARGET = xX86_WIN32 || test x$TARGET = xX86_64; then
    AC_CACHE_CHECK([assembler supports pc related relocs],
	libffi_cv_as_x86_pcrel, [
	libffi_cv_as_x86_pcrel=yes
	echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
	if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then
	    libffi_cv_as_x86_pcrel=no
	fi
	])
    if test "x$libffi_cv_as_x86_pcrel" = xyes; then
	AC_DEFINE(HAVE_AS_X86_PCREL, 1,
		  [Define if your assembler supports PC relative relocs.])
    fi
fi

case "$target" in
     *-apple-darwin10* | *-*-freebsd* | *-*-openbsd* | *-pc-solaris*)
       AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1,
                 [Cannot use malloc on this target, so, we revert to
                   alternative means])
     ;;
esac

if test x$TARGET = xX86_64; then
    AC_CACHE_CHECK([assembler supports unwind section type],
	libffi_cv_as_x86_64_unwind_section_type, [
	libffi_cv_as_x86_64_unwind_section_type=yes
	echo '.section .eh_frame,"a",@unwind' > conftest.s
	if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then
	    libffi_cv_as_x86_64_unwind_section_type=no
	fi
	])
    if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then
	AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1,
		  [Define if your assembler supports unwind section type.])
    fi
fi

AC_CACHE_CHECK([whether .eh_frame section should be read-only],
    libffi_cv_ro_eh_frame, [
	libffi_cv_ro_eh_frame=no
	echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
	if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
	    if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
		libffi_cv_ro_eh_frame=yes
	    elif grep '.section.*eh_frame.*#alloc' conftest.c \
		 | grep -v '#write' > /dev/null; then
		libffi_cv_ro_eh_frame=yes
	    fi
	fi
	rm -f conftest.*
    ])
if test "x$libffi_cv_ro_eh_frame" = xyes; then
    AC_DEFINE(HAVE_RO_EH_FRAME, 1,
	      [Define if .eh_frame sections should be read-only.])
    AC_DEFINE(EH_FRAME_FLAGS, "a",
	      [Define to the flags needed for the .section .eh_frame directive.])
else
    AC_DEFINE(EH_FRAME_FLAGS, "aw",
	      [Define to the flags needed for the .section .eh_frame directive.])
fi

AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
    libffi_cv_hidden_visibility_attribute, [
	echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c
	libffi_cv_hidden_visibility_attribute=no
	if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
	    if grep '\.hidden.*foo' conftest.s >/dev/null; then
		libffi_cv_hidden_visibility_attribute=yes
	    fi
	fi
	rm -f conftest.*
    ])
if test $libffi_cv_hidden_visibility_attribute = yes; then
    AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1,
	      [Define if __attribute__((visibility("hidden"))) is supported.])
fi

AH_BOTTOM([
#ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
#ifdef LIBFFI_ASM
#define FFI_HIDDEN(name) .hidden name
#else
#define FFI_HIDDEN __attribute__ ((visibility ("hidden")))
#endif
#else
#ifdef LIBFFI_ASM
#define FFI_HIDDEN(name)
#else
#define FFI_HIDDEN
#endif
#endif
])

AC_SUBST(TARGET)
AC_SUBST(TARGETDIR)

AC_SUBST(SHELL)

AC_ARG_ENABLE(debug,
[  --enable-debug          debugging mode],
  if test "$enable_debug" = "yes"; then
    AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.])
  fi)

AC_ARG_ENABLE(structs,
[  --disable-structs       omit code for struct support],
  if test "$enable_structs" = "no"; then
    AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.])
  fi)

AC_ARG_ENABLE(raw-api,
[  --disable-raw-api       make the raw api unavailable],
  if test "$enable_raw_api" = "no"; then
    AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.])
  fi)

AC_ARG_ENABLE(purify-safety,
[  --enable-purify-safety  purify-safe mode],
  if test "$enable_purify_safety" = "yes"; then
    AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.])
  fi)

if test -n "$with_cross_host" &&
   test x"$with_cross_host" != x"no"; then
  toolexecdir='$(exec_prefix)/$(target_alias)'
  toolexeclibdir='$(toolexecdir)/lib'
else
  toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
  toolexeclibdir='$(libdir)'
fi
multi_os_directory=`$CC -print-multi-os-directory`
case $multi_os_directory in
  .) ;; # Avoid trailing /.
  *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
esac
AC_SUBST(toolexecdir)
AC_SUBST(toolexeclibdir)

if test "${multilib}" = "yes"; then
  multilib_arg="--enable-multilib"
else
  multilib_arg=
fi

AC_CONFIG_COMMANDS(include, [test -d include || mkdir include])
AC_CONFIG_COMMANDS(src, [
test -d src || mkdir src
test -d src/$TARGETDIR || mkdir src/$TARGETDIR
], [TARGETDIR="$TARGETDIR"])

AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h)

AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile man/Makefile)

AC_OUTPUT
Commit	Line	Data
63e5e3e0	1	dnl Process this with autoconf to create configure
3ed8e5b6	2
df58e648	3	AC_PREREQ(2.64)
3ed8e5b6	4
a761df3d	5	AC_INIT([libffi], [3.0.9], [http://gcc.gnu.org/bugs.html])
3ed8e5b6 AT	6	AC_CONFIG_HEADERS([fficonfig.h])
	7
	8	AM_ENABLE_MULTILIB(, ..)
3c18f2d1	9
bbf3057b AT	10	AC_CANONICAL_SYSTEM
bbf3057b AT	11	target_alias=${target_alias-$host_alias}
63e5e3e0	12
88d8c771 AG	13	. ${srcdir}/configure.host
88d8c771 AG	14
3ed8e5b6	15	AM_INIT_AUTOMAKE
63e5e3e0	16
3ed8e5b6 AT	17	# The same as in boehm-gc and libstdc++. Have to borrow it from there.
	18	# We must force CC to /not/ be precious variables; otherwise
	19	# the wrong, non-multilib-adjusted value will be used in multilibs.
	20	# As a side effect, we have to subst CFLAGS ourselves.
63e5e3e0	21
3ed8e5b6 AT	22	m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
3ed8e5b6 AT	23	m4_define([_AC_ARG_VAR_PRECIOUS],[])
63e5e3e0	24	AC_PROG_CC
1b3b24c2	25	m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
bbf3057b	26
3ed8e5b6 AT	27	AC_SUBST(CFLAGS)
	28
	29	AM_PROG_AS
	30	AM_PROG_CC_C_O
63e5e3e0 AG	31	AC_PROG_LIBTOOL
63e5e3e0 AG	32
3ed8e5b6 AT	33	AM_MAINTAINER_MODE
3ed8e5b6 AT	34
c9b93377 JB	35	AC_CHECK_HEADERS(sys/mman.h)
c9b93377 JB	36	AC_CHECK_FUNCS(mmap)
5196736e AJ	37	AC_FUNC_MMAP_BLACKLIST
5196736e AJ	38
bbf3057b AT	39	dnl The -no-testsuite modules omit the test subdir.
	40	AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
	41
63e5e3e0 AG	42	TARGETDIR="unknown"
63e5e3e0 AG	43	case "$host" in
bf8da5fc RH	44	alpha--*)
	45	TARGET=ALPHA; TARGETDIR=alpha;
	46	# Support 128-bit long double, changable via command-line switch.
	47	HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
	48	;;
	49
	50	arm--*)
	51	TARGET=ARM; TARGETDIR=arm
	52	;;
	53
cb14fcb8	54	amd64--freebsd \| amd64--openbsd)
2e250fa2 BK	55	TARGET=X86_64; TARGETDIR=x86
	56	;;
	57
124f60ab BS	58	avr32--*)
	59	TARGET=AVR32; TARGETDIR=avr32
	60	;;
	61
bf8da5fc RH	62	cris--)
	63	TARGET=LIBFFI_CRIS; TARGETDIR=cris
	64	;;
	65
	66	frv--)
	67	TARGET=FRV; TARGETDIR=frv
	68	;;
	69
b7b857bb	70	hppa--linux* \| parisc--linux*)
bf8da5fc RH	71	TARGET=PA_LINUX; TARGETDIR=pa
	72	;;
	73	hppa64--hpux*)
	74	TARGET=PA64_HPUX; TARGETDIR=pa
	75	;;
	76	hppa--hpux*)
	77	TARGET=PA_HPUX; TARGETDIR=pa
	78	;;
	79
938a483f	80	i?86--freebsd \| i?86--openbsd)
b7b857bb AH	81	TARGET=X86_FREEBSD; TARGETDIR=x86
b7b857bb AH	82	;;
bf8da5fc RH	83	i?86-win32* \| i?86--cygwin \| i?86--mingw)
bf8da5fc RH	84	TARGET=X86_WIN32; TARGETDIR=x86
a761df3d AG	85	# All mingw/cygwin/win32 builds require this for sharedlib
a761df3d AG	86	AM_LTLDFLAGS="-no-undefined"
bf8da5fc RH	87	;;
	88	i?86--darwin)
	89	TARGET=X86_DARWIN; TARGETDIR=x86
	90	;;
04a49983 RO	91	i?86--solaris2.1[[0-9]])
	92	TARGET=X86_64; TARGETDIR=x86
	93	;;
bf8da5fc RH	94	i?86--)
	95	TARGET=X86; TARGETDIR=x86
	96	;;
	97
	98	ia64--*)
	99	TARGET=IA64; TARGETDIR=ia64
	100	;;
	101
	102	m32r--*)
	103	TARGET=M32R; TARGETDIR=m32r
	104	;;
	105
	106	m68k--)
	107	TARGET=M68K; TARGETDIR=m68k
	108	;;
	109
bf8da5fc	110	mips-sgi-irix5.* \| mips-sgi-irix6.*)
8d5c5e35	111	TARGET=MIPS; TARGETDIR=mips
bf8da5fc RH	112	;;
bf8da5fc RH	113	mips--linux*)
50117ecb MK	114	# Support 128-bit long double for NewABI.
50117ecb MK	115	HAVE_LONG_DOUBLE='defined(__mips64)'
8d5c5e35	116	TARGET=MIPS; TARGETDIR=mips
bf8da5fc RH	117	;;
bf8da5fc RH	118
b7b857bb AH	119	powerpc--linux* \| powerpc--sysv)
	120	TARGET=POWERPC; TARGETDIR=powerpc
	121	;;
	122	powerpc--beos)
bf8da5fc RH	123	TARGET=POWERPC; TARGETDIR=powerpc
	124	;;
	125	powerpc--darwin)
	126	TARGET=POWERPC_DARWIN; TARGETDIR=powerpc
	127	;;
	128	powerpc--aix \| rs6000--aix)
	129	TARGET=POWERPC_AIX; TARGETDIR=powerpc
	130	;;
	131	powerpc--freebsd)
	132	TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc
	133	;;
	134	powerpc--rtems*)
	135	TARGET=POWERPC; TARGETDIR=powerpc
	136	;;
	137
	138	s390-- \| s390x--)
	139	TARGET=S390; TARGETDIR=s390
	140	;;
	141
	142	sh-- \| sh[[34]]--*)
	143	TARGET=SH; TARGETDIR=sh
	144	;;
	145	sh64-- \| sh5--*)
	146	TARGET=SH64; TARGETDIR=sh64
	147	;;
	148
	149	sparc--*)
	150	TARGET=SPARC; TARGETDIR=sparc
	151	;;
	152
	153	x86_64--darwin)
	154	TARGET=X86_DARWIN; TARGETDIR=x86
	155	;;
fe673cc9	156
bf8da5fc	157	x86_64--cygwin \| x86_64--mingw)
062b8279	158	TARGET=X86_WIN64; TARGETDIR=x86
bf8da5fc	159	;;
fe673cc9	160
bf8da5fc RH	161	x86_64--)
	162	TARGET=X86_64; TARGETDIR=x86
	163	;;
63e5e3e0 AG	164	esac
63e5e3e0 AG	165
bbf3057b	166	AC_SUBST(AM_RUNTESTFLAGS)
a761df3d	167	AC_SUBST(AM_LTLDFLAGS)
bbf3057b	168
63e5e3e0	169	if test $TARGETDIR = unknown; then
3ed8e5b6	170	AC_MSG_ERROR(["libffi has not been ported to $host."])
63e5e3e0 AG	171	fi
63e5e3e0 AG	172
8d5c5e35	173	AM_CONDITIONAL(MIPS, test x$TARGET = xMIPS)
63e5e3e0 AG	174	AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
63e5e3e0 AG	175	AM_CONDITIONAL(X86, test x$TARGET = xX86)
b7b857bb	176	AM_CONDITIONAL(X86_FREEBSD, test x$TARGET = xX86_FREEBSD)
d6c4152a	177	AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
062b8279	178	AM_CONDITIONAL(X86_WIN64, test x$TARGET = xX86_WIN64)
a3bd50cc	179	AM_CONDITIONAL(X86_DARWIN, test x$TARGET = xX86_DARWIN)
63e5e3e0	180	AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
dc5de370	181	AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
a472e9d4	182	AM_CONDITIONAL(M32R, test x$TARGET = xM32R)
63e5e3e0 AG	183	AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
63e5e3e0 AG	184	AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
2f4006f8	185	AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
3c017635	186	AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
97067642	187	AM_CONDITIONAL(POWERPC_FREEBSD, test x$TARGET = xPOWERPC_FREEBSD)
63e5e3e0	188	AM_CONDITIONAL(ARM, test x$TARGET = xARM)
124f60ab	189	AM_CONDITIONAL(AVR32, test x$TARGET = xAVR32)
614348bb	190	AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS)
88d8c771	191	AM_CONDITIONAL(FRV, test x$TARGET = xFRV)
22bcf65c	192	AM_CONDITIONAL(S390, test x$TARGET = xS390)
c94974ca	193	AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
ddebdfeb	194	AM_CONDITIONAL(SH, test x$TARGET = xSH)
e860ed6d	195	AM_CONDITIONAL(SH64, test x$TARGET = xSH64)
e6c300ef JDA	196	AM_CONDITIONAL(PA_LINUX, test x$TARGET = xPA_LINUX)
	197	AM_CONDITIONAL(PA_HPUX, test x$TARGET = xPA_HPUX)
	198	AM_CONDITIONAL(PA64_HPUX, test x$TARGET = xPA64_HPUX)
63e5e3e0 AG	199
	200	AC_HEADER_STDC
	201	AC_CHECK_FUNCS(memcpy)
	202	AC_FUNC_ALLOCA
	203
a097ef55 KC	204	AC_CHECK_SIZEOF(double)
a097ef55 KC	205	AC_CHECK_SIZEOF(long double)
e2f2e70a	206
1450eb7a	207	# Also AC_SUBST this variable for ffi.h.
bf8da5fc RH	208	if test -z "$HAVE_LONG_DOUBLE"; then
	209	HAVE_LONG_DOUBLE=0
	210	if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then
	211	if test $ac_cv_sizeof_long_double != 0; then
	212	HAVE_LONG_DOUBLE=1
	213	AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double])
	214	fi
1450eb7a AT	215	fi
	216	fi
	217	AC_SUBST(HAVE_LONG_DOUBLE)
	218
a097ef55	219	AC_C_BIGENDIAN
63e5e3e0	220
e6fbf387 RZ	221	AC_CACHE_CHECK([assembler .cfi pseudo-op support],
	222	libffi_cv_as_cfi_pseudo_op, [
	223	libffi_cv_as_cfi_pseudo_op=unknown
	224	AC_TRY_COMPILE([asm (".cfi_startproc\n\t.cfi_endproc");],,
	225	[libffi_cv_as_cfi_pseudo_op=yes],
	226	[libffi_cv_as_cfi_pseudo_op=no])
	227	])
	228	if test "x$libffi_cv_as_cfi_pseudo_op" = xyes; then
	229	AC_DEFINE(HAVE_AS_CFI_PSEUDO_OP, 1,
	230	[Define if your assembler supports .cfi_* directives.])
	231	fi
	232
189ab118	233	if test x$TARGET = xSPARC; then
5d84cf0b JJ	234	AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
	235	libffi_cv_as_sparc_ua_pcrel, [
	236	save_CFLAGS="$CFLAGS"
	237	save_LDFLAGS="$LDFLAGS"
	238	CFLAGS="$CFLAGS -fpic"
	239	LDFLAGS="$LDFLAGS -shared"
	240	AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],,
	241	[libffi_cv_as_sparc_ua_pcrel=yes],
	242	[libffi_cv_as_sparc_ua_pcrel=no])
	243	CFLAGS="$save_CFLAGS"
	244	LDFLAGS="$save_LDFLAGS"])
	245	if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then
	246	AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
	247	[Define if your assembler and linker support unaligned PC relative relocs.])
	248	fi
bd19c9f4 JS	249
	250	AC_CACHE_CHECK([assembler .register pseudo-op support],
	251	libffi_cv_as_register_pseudo_op, [
	252	libffi_cv_as_register_pseudo_op=unknown
	253	# Check if we have .register
	254	AC_TRY_COMPILE([asm (".register %g2, #scratch");],,
3ed8e5b6 AT	255	[libffi_cv_as_register_pseudo_op=yes],
3ed8e5b6 AT	256	[libffi_cv_as_register_pseudo_op=no])
bd19c9f4 JS	257	])
	258	if test "x$libffi_cv_as_register_pseudo_op" = xyes; then
	259	AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
3ed8e5b6	260	[Define if your assembler supports .register.])
bd19c9f4	261	fi
5d84cf0b JJ	262	fi
5d84cf0b JJ	263
8353cd27	264	if test x$TARGET = xX86 \|\| test x$TARGET = xX86_WIN32 \|\| test x$TARGET = xX86_64; then
4d3d4078 RO	265	AC_CACHE_CHECK([assembler supports pc related relocs],
	266	libffi_cv_as_x86_pcrel, [
	267	libffi_cv_as_x86_pcrel=yes
	268	echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
	269	if $CC $CFLAGS -c conftest.s 2>&1 \| grep -i warning > /dev/null; then
	270	libffi_cv_as_x86_pcrel=no
	271	fi
	272	])
	273	if test "x$libffi_cv_as_x86_pcrel" = xyes; then
	274	AC_DEFINE(HAVE_AS_X86_PCREL, 1,
	275	[Define if your assembler supports PC relative relocs.])
	276	fi
	277	fi
	278
99fba2c4 AT	279	case "$target" in
	280	-apple-darwin10 \| --freebsd* \| --openbsd* \| -pc-solaris)
	281	AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1,
	282	[Cannot use malloc on this target, so, we revert to
	283	alternative means])
	284	;;
	285	esac
	286
f4b130bb RO	287	if test x$TARGET = xX86_64; then
	288	AC_CACHE_CHECK([assembler supports unwind section type],
	289	libffi_cv_as_x86_64_unwind_section_type, [
	290	libffi_cv_as_x86_64_unwind_section_type=yes
	291	echo '.section .eh_frame,"a",@unwind' > conftest.s
	292	if $CC $CFLAGS -c conftest.s 2>&1 \| grep -i warning > /dev/null; then
	293	libffi_cv_as_x86_64_unwind_section_type=no
	294	fi
	295	])
	296	if test "x$libffi_cv_as_x86_64_unwind_section_type" = xyes; then
	297	AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1,
	298	[Define if your assembler supports unwind section type.])
	299	fi
	300	fi
	301
a733b15e JJ	302	AC_CACHE_CHECK([whether .eh_frame section should be read-only],
	303	libffi_cv_ro_eh_frame, [
	304	libffi_cv_ro_eh_frame=no
	305	echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
	306	if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
	307	if grep '.section.eh_frame."a"' conftest.s > /dev/null; then
	308	libffi_cv_ro_eh_frame=yes
	309	elif grep '.section.eh_frame.#alloc' conftest.c \
	310	\| grep -v '#write' > /dev/null; then
	311	libffi_cv_ro_eh_frame=yes
	312	fi
	313	fi
	314	rm -f conftest.*
	315	])
	316	if test "x$libffi_cv_ro_eh_frame" = xyes; then
	317	AC_DEFINE(HAVE_RO_EH_FRAME, 1,
	318	[Define if .eh_frame sections should be read-only.])
1450eb7a AT	319	AC_DEFINE(EH_FRAME_FLAGS, "a",
	320	[Define to the flags needed for the .section .eh_frame directive.])
	321	else
	322	AC_DEFINE(EH_FRAME_FLAGS, "aw",
	323	[Define to the flags needed for the .section .eh_frame directive.])
a733b15e JJ	324	fi
a733b15e JJ	325
8a42356f JJ	326	AC_CACHE_CHECK([for __attribute__((visibility("hidden")))],
	327	libffi_cv_hidden_visibility_attribute, [
	328	echo 'int __attribute__ ((visibility ("hidden"))) foo (void) { return 1; }' > conftest.c
	329	libffi_cv_hidden_visibility_attribute=no
	330	if AC_TRY_COMMAND(${CC-cc} -Werror -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
	331	if grep '\.hidden.*foo' conftest.s >/dev/null; then
	332	libffi_cv_hidden_visibility_attribute=yes
	333	fi
	334	fi
	335	rm -f conftest.*
	336	])
	337	if test $libffi_cv_hidden_visibility_attribute = yes; then
	338	AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1,
	339	[Define if __attribute__((visibility("hidden"))) is supported.])
	340	fi
	341
	342	AH_BOTTOM([
	343	#ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
	344	#ifdef LIBFFI_ASM
	345	#define FFI_HIDDEN(name) .hidden name
	346	#else
	347	#define FFI_HIDDEN __attribute__ ((visibility ("hidden")))
	348	#endif
	349	#else
	350	#ifdef LIBFFI_ASM
	351	#define FFI_HIDDEN(name)
	352	#else
	353	#define FFI_HIDDEN
	354	#endif
	355	#endif
	356	])
	357
63e5e3e0 AG	358	AC_SUBST(TARGET)
	359	AC_SUBST(TARGETDIR)
	360
	361	AC_SUBST(SHELL)
	362
7d45b968 JS	363	AC_ARG_ENABLE(debug,
	364	[ --enable-debug debugging mode],
	365	if test "$enable_debug" = "yes"; then
1450eb7a	366	AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.])
7d45b968 JS	367	fi)
	368
	369	AC_ARG_ENABLE(structs,
	370	[ --disable-structs omit code for struct support],
	371	if test "$enable_structs" = "no"; then
1450eb7a	372	AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.])
7d45b968 JS	373	fi)
	374
	375	AC_ARG_ENABLE(raw-api,
	376	[ --disable-raw-api make the raw api unavailable],
	377	if test "$enable_raw_api" = "no"; then
1450eb7a	378	AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.])
7d45b968	379	fi)
63e5e3e0 AG	380
63e5e3e0 AG	381	AC_ARG_ENABLE(purify-safety,
7d45b968 JS	382	[ --enable-purify-safety purify-safe mode],
7d45b968 JS	383	if test "$enable_purify_safety" = "yes"; then
1450eb7a	384	AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.])
7d45b968	385	fi)
0721f64e	386
0e292c01 AO	387	if test -n "$with_cross_host" &&
	388	test x"$with_cross_host" != x"no"; then
	389	toolexecdir='$(exec_prefix)/$(target_alias)'
	390	toolexeclibdir='$(toolexecdir)/lib'
	391	else
	392	toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
	393	toolexeclibdir='$(libdir)'
	394	fi
ff8b9ca8 AS	395	multi_os_directory=`$CC -print-multi-os-directory`
	396	case $multi_os_directory in
	397	.) ;; # Avoid trailing /.
	398	*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
	399	esac
0e292c01 AO	400	AC_SUBST(toolexecdir)
0e292c01 AO	401	AC_SUBST(toolexeclibdir)
63e5e3e0	402
3c18f2d1 TT	403	if test "${multilib}" = "yes"; then
	404	multilib_arg="--enable-multilib"
	405	else
	406	multilib_arg=
	407	fi
	408
3ed8e5b6 AT	409	AC_CONFIG_COMMANDS(include, [test -d include \|\| mkdir include])
3ed8e5b6 AT	410	AC_CONFIG_COMMANDS(src, [
3b905056	411	test -d src \|\| mkdir src
3ed8e5b6 AT	412	test -d src/$TARGETDIR \|\| mkdir src/$TARGETDIR
	413	], [TARGETDIR="$TARGETDIR"])
	414
	415	AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h)
	416
b7b857bb	417	AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile man/Makefile)
1450eb7a	418
3ed8e5b6	419	AC_OUTPUT