630 lines
18 KiB
Text
630 lines
18 KiB
Text
dnl Process this with autoconf to create configure
|
|
#
|
|
# file from libffi - slightly patched for Python's ctypes
|
|
#
|
|
|
|
AC_PREREQ(2.68)
|
|
|
|
AC_INIT([libffi], [3.1], [http://github.com/atgreen/libffi/issues])
|
|
AC_CONFIG_HEADERS([fficonfig.h])
|
|
|
|
AC_CANONICAL_SYSTEM
|
|
target_alias=${target_alias-$host_alias}
|
|
|
|
case "${host}" in
|
|
frv*-elf)
|
|
LDFLAGS=`echo $LDFLAGS | sed "s/\-B[^ ]*libgloss\/frv\///"`\ -B`pwd`/../libgloss/frv/
|
|
;;
|
|
esac
|
|
|
|
AX_ENABLE_BUILDDIR
|
|
|
|
AM_INIT_AUTOMAKE
|
|
|
|
# The same as in boehm-gc and libstdc++. Have to borrow it from there.
|
|
# We must force CC to /not/ be precious variables; otherwise
|
|
# the wrong, non-multilib-adjusted value will be used in multilibs.
|
|
# As a side effect, we have to subst CFLAGS ourselves.
|
|
# Also save and restore CFLAGS, since AC_PROG_CC will come up with
|
|
# defaults of its own if none are provided.
|
|
|
|
m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
|
|
m4_define([_AC_ARG_VAR_PRECIOUS],[])
|
|
save_CFLAGS=$CFLAGS
|
|
AC_PROG_CC
|
|
AC_PROG_CXX
|
|
CFLAGS=$save_CFLAGS
|
|
m4_undefine([_AC_ARG_VAR_PRECIOUS])
|
|
m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
|
|
|
|
AC_SUBST(CFLAGS)
|
|
|
|
AM_PROG_AS
|
|
AM_PROG_CC_C_O
|
|
AC_PROG_LIBTOOL
|
|
AC_CONFIG_MACRO_DIR([m4])
|
|
|
|
# Test for 64-bit build.
|
|
AC_CHECK_SIZEOF([size_t])
|
|
|
|
AX_COMPILER_VENDOR
|
|
AX_CC_MAXOPT
|
|
# The AX_CFLAGS_WARN_ALL macro doesn't currently work for sunpro
|
|
# compiler.
|
|
if test "$ax_cv_c_compiler_vendor" != "sun"; then
|
|
AX_CFLAGS_WARN_ALL
|
|
fi
|
|
|
|
if test "x$GCC" = "xyes"; then
|
|
CFLAGS="$CFLAGS -fexceptions"
|
|
fi
|
|
|
|
cat > local.exp <<EOF
|
|
set CC_FOR_TARGET "$CC"
|
|
set CXX_FOR_TARGET "$CXX"
|
|
EOF
|
|
|
|
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 $srcdir/testsuite)
|
|
|
|
TARGETDIR="unknown"
|
|
HAVE_LONG_DOUBLE_VARIANT=0
|
|
case "$host" in
|
|
aarch64*-*-*)
|
|
TARGET=AARCH64; TARGETDIR=aarch64
|
|
;;
|
|
|
|
alpha*-*-*)
|
|
TARGET=ALPHA; TARGETDIR=alpha;
|
|
# Support 128-bit long double, changeable via command-line switch.
|
|
HAVE_LONG_DOUBLE='defined(__LONG_DOUBLE_128__)'
|
|
;;
|
|
|
|
arc*-*-*)
|
|
TARGET=ARC; TARGETDIR=arc
|
|
;;
|
|
|
|
arm*-*-*)
|
|
TARGET=ARM; TARGETDIR=arm
|
|
;;
|
|
|
|
amd64-*-freebsd* | amd64-*-openbsd*)
|
|
TARGET=X86_64; TARGETDIR=x86
|
|
;;
|
|
|
|
amd64-*-freebsd*)
|
|
TARGET=X86_64; TARGETDIR=x86
|
|
;;
|
|
|
|
amd64-*-freebsd*)
|
|
TARGET=X86_64; TARGETDIR=x86
|
|
;;
|
|
|
|
avr32*-*-*)
|
|
TARGET=AVR32; TARGETDIR=avr32
|
|
;;
|
|
|
|
bfin*)
|
|
TARGET=BFIN; TARGETDIR=bfin
|
|
;;
|
|
|
|
cris-*-*)
|
|
TARGET=LIBFFI_CRIS; TARGETDIR=cris
|
|
;;
|
|
|
|
frv-*-*)
|
|
TARGET=FRV; TARGETDIR=frv
|
|
;;
|
|
|
|
hppa*-*-linux* | parisc*-*-linux* | hppa*-*-openbsd*)
|
|
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* | i?86-*-os2* | i?86-*-interix*)
|
|
TARGET=X86_WIN32; TARGETDIR=x86
|
|
# All mingw/cygwin/win32 builds require -no-undefined for sharedlib.
|
|
# We must also check with_cross_host to decide if this is a native
|
|
# or cross-build and select where to install dlls appropriately.
|
|
if test -n "$with_cross_host" &&
|
|
test x"$with_cross_host" != x"no"; then
|
|
AM_LTLDFLAGS='-no-undefined -bindir "$(toolexeclibdir)"';
|
|
else
|
|
AM_LTLDFLAGS='-no-undefined -bindir "$(bindir)"';
|
|
fi
|
|
;;
|
|
i*86-*-nto-qnx*)
|
|
TARGET=X86; TARGETDIR=x86
|
|
;;
|
|
i?86-*-darwin*)
|
|
TARGET=X86_DARWIN; TARGETDIR=x86
|
|
;;
|
|
i?86-*-solaris2.1[[0-9]]*)
|
|
TARGETDIR=x86
|
|
if test $ac_cv_sizeof_size_t = 4; then
|
|
TARGET=X86;
|
|
else
|
|
TARGET=X86_64;
|
|
fi
|
|
;;
|
|
|
|
x86_64-*-darwin*)
|
|
TARGET=X86_DARWIN; TARGETDIR=x86
|
|
;;
|
|
|
|
x86_64-*-cygwin* | x86_64-*-mingw*)
|
|
TARGET=X86_WIN64; TARGETDIR=x86
|
|
# All mingw/cygwin/win32 builds require -no-undefined for sharedlib.
|
|
# We must also check with_cross_host to decide if this is a native
|
|
# or cross-build and select where to install dlls appropriately.
|
|
if test -n "$with_cross_host" &&
|
|
test x"$with_cross_host" != x"no"; then
|
|
AM_LTLDFLAGS='-no-undefined -bindir "$(toolexeclibdir)"';
|
|
else
|
|
AM_LTLDFLAGS='-no-undefined -bindir "$(bindir)"';
|
|
fi
|
|
;;
|
|
|
|
i?86-*-* | x86_64-*-*)
|
|
TARGETDIR=x86
|
|
if test $ac_cv_sizeof_size_t = 4; then
|
|
case "$host" in
|
|
*-gnux32)
|
|
TARGET=X86_64
|
|
;;
|
|
*)
|
|
TARGET=X86
|
|
;;
|
|
esac
|
|
else
|
|
TARGET=X86_64;
|
|
fi
|
|
;;
|
|
|
|
ia64*-*-*)
|
|
TARGET=IA64; TARGETDIR=ia64
|
|
;;
|
|
|
|
m32r*-*-*)
|
|
TARGET=M32R; TARGETDIR=m32r
|
|
;;
|
|
|
|
m68k-*-*)
|
|
TARGET=M68K; TARGETDIR=m68k
|
|
;;
|
|
|
|
m88k-*-*)
|
|
TARGET=M88K; TARGETDIR=m88k
|
|
;;
|
|
|
|
microblaze*-*-*)
|
|
TARGET=MICROBLAZE; TARGETDIR=microblaze
|
|
;;
|
|
|
|
moxie-*-*)
|
|
TARGET=MOXIE; TARGETDIR=moxie
|
|
;;
|
|
|
|
metag-*-*)
|
|
TARGET=METAG; TARGETDIR=metag
|
|
;;
|
|
|
|
mips-sgi-irix5.* | mips-sgi-irix6.* | mips*-*-rtems*)
|
|
TARGET=MIPS_IRIX; TARGETDIR=mips
|
|
;;
|
|
mips*-*linux* | mips*-*-openbsd*)
|
|
# Support 128-bit long double for NewABI.
|
|
HAVE_LONG_DOUBLE='defined(__mips64)'
|
|
TARGET=MIPS_LINUX; TARGETDIR=mips
|
|
;;
|
|
|
|
nios2*-linux*)
|
|
TARGET=NIOS2; TARGETDIR=nios2
|
|
;;
|
|
|
|
powerpc*-*-linux* | powerpc-*-sysv*)
|
|
TARGET=POWERPC; TARGETDIR=powerpc
|
|
HAVE_LONG_DOUBLE_VARIANT=1
|
|
;;
|
|
powerpc-*-amigaos*)
|
|
TARGET=POWERPC; TARGETDIR=powerpc
|
|
;;
|
|
powerpc-*-beos*)
|
|
TARGET=POWERPC; TARGETDIR=powerpc
|
|
;;
|
|
powerpc-*-darwin* | powerpc64-*-darwin*)
|
|
TARGET=POWERPC_DARWIN; TARGETDIR=powerpc
|
|
;;
|
|
powerpc-*-aix* | rs6000-*-aix*)
|
|
TARGET=POWERPC_AIX; TARGETDIR=powerpc
|
|
;;
|
|
powerpc-*-freebsd* | powerpc-*-openbsd*)
|
|
TARGET=POWERPC_FREEBSD; TARGETDIR=powerpc
|
|
HAVE_LONG_DOUBLE_VARIANT=1
|
|
;;
|
|
powerpc64-*-freebsd*)
|
|
TARGET=POWERPC; 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
|
|
;;
|
|
|
|
tile*-*)
|
|
TARGET=TILE; TARGETDIR=tile
|
|
;;
|
|
|
|
vax-*-*)
|
|
TARGET=VAX; TARGETDIR=vax
|
|
;;
|
|
|
|
xtensa*-*)
|
|
TARGET=XTENSA; TARGETDIR=xtensa
|
|
;;
|
|
|
|
esac
|
|
|
|
AC_SUBST(AM_RUNTESTFLAGS)
|
|
AC_SUBST(AM_LTLDFLAGS)
|
|
|
|
if test $TARGETDIR = unknown; then
|
|
AC_MSG_ERROR(["libffi has not been ported to $host."])
|
|
fi
|
|
|
|
AM_CONDITIONAL(MIPS,[expr x$TARGET : 'xMIPS' > /dev/null])
|
|
AM_CONDITIONAL(BFIN, test x$TARGET = xBFIN)
|
|
AM_CONDITIONAL(SPARC, test x$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$TARGET = xX86_DARWIN)
|
|
AM_CONDITIONAL(X86_DARWIN32, test x$TARGET = xX86_DARWIN && test $ac_cv_sizeof_size_t = 4)
|
|
AM_CONDITIONAL(X86_DARWIN64, test x$TARGET = xX86_DARWIN && test $ac_cv_sizeof_size_t = 8)
|
|
AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
|
|
AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
|
|
AM_CONDITIONAL(M32R, test x$TARGET = xM32R)
|
|
AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
|
|
AM_CONDITIONAL(M88K, test x$TARGET = xM88K)
|
|
AM_CONDITIONAL(MICROBLAZE, test x$TARGET = xMICROBLAZE)
|
|
AM_CONDITIONAL(METAG, test x$TARGET = xMETAG)
|
|
AM_CONDITIONAL(MOXIE, test x$TARGET = xMOXIE)
|
|
AM_CONDITIONAL(NIOS2, test x$TARGET = xNIOS2)
|
|
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(AARCH64, test x$TARGET = xAARCH64)
|
|
AM_CONDITIONAL(ARC, test x$TARGET = xARC)
|
|
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$TARGET = xPA64_HPUX)
|
|
AM_CONDITIONAL(TILE, test x$TARGET = xTILE)
|
|
AM_CONDITIONAL(VAX, test x$TARGET = xVAX)
|
|
AM_CONDITIONAL(XTENSA, test x$TARGET = xXTENSA)
|
|
|
|
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_long_double != 0; then
|
|
if test $HAVE_LONG_DOUBLE_VARIANT != 0; then
|
|
AC_DEFINE(HAVE_LONG_DOUBLE_VARIANT, 1, [Define if you support more than one size of the long double type])
|
|
HAVE_LONG_DOUBLE=1
|
|
else
|
|
if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then
|
|
HAVE_LONG_DOUBLE=1
|
|
AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double])
|
|
fi
|
|
fi
|
|
fi
|
|
fi
|
|
AC_SUBST(HAVE_LONG_DOUBLE)
|
|
AC_SUBST(HAVE_LONG_DOUBLE_VARIANT)
|
|
|
|
AC_C_BIGENDIAN
|
|
|
|
GCC_AS_CFI_PSEUDO_OP
|
|
|
|
if test x$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=no
|
|
echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
|
|
if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then
|
|
libffi_cv_as_x86_pcrel=yes
|
|
fi
|
|
])
|
|
if test "x$libffi_cv_as_x86_pcrel" = xyes; then
|
|
AC_DEFINE(HAVE_AS_X86_PCREL, 1,
|
|
[Define if your assembler supports PC relative relocs.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler .ascii pseudo-op support],
|
|
libffi_cv_as_ascii_pseudo_op, [
|
|
libffi_cv_as_ascii_pseudo_op=unknown
|
|
# Check if we have .ascii
|
|
AC_TRY_COMPILE(,[asm (".ascii \\"string\\"");],
|
|
[libffi_cv_as_ascii_pseudo_op=yes],
|
|
[libffi_cv_as_ascii_pseudo_op=no])
|
|
])
|
|
if test "x$libffi_cv_as_ascii_pseudo_op" = xyes; then
|
|
AC_DEFINE(HAVE_AS_ASCII_PSEUDO_OP, 1,
|
|
[Define if your assembler supports .ascii.])
|
|
fi
|
|
|
|
AC_CACHE_CHECK([assembler .string pseudo-op support],
|
|
libffi_cv_as_string_pseudo_op, [
|
|
libffi_cv_as_string_pseudo_op=unknown
|
|
# Check if we have .string
|
|
AC_TRY_COMPILE(,[asm (".string \\"string\\"");],
|
|
[libffi_cv_as_string_pseudo_op=yes],
|
|
[libffi_cv_as_string_pseudo_op=no])
|
|
])
|
|
if test "x$libffi_cv_as_string_pseudo_op" = xyes; then
|
|
AC_DEFINE(HAVE_AS_STRING_PSEUDO_OP, 1,
|
|
[Define if your assembler supports .string.])
|
|
fi
|
|
fi
|
|
|
|
# On PaX enable kernels that have MPROTECT enable we can't use PROT_EXEC.
|
|
AC_ARG_ENABLE(pax_emutramp,
|
|
[ --enable-pax_emutramp enable pax emulated trampolines, for we can't use PROT_EXEC],
|
|
if test "$enable_pax_emutramp" = "yes"; then
|
|
AC_DEFINE(FFI_MMAP_EXEC_EMUTRAMP_PAX, 1,
|
|
[Define this if you want to enable pax emulated trampolines])
|
|
fi)
|
|
|
|
LT_SYS_SYMBOL_USCORE
|
|
if test "x$sys_symbol_underscore" = xyes; then
|
|
AC_DEFINE(SYMBOL_UNDERSCORE, 1, [Define if symbols are underscored.])
|
|
fi
|
|
|
|
FFI_EXEC_TRAMPOLINE_TABLE=0
|
|
case "$target" in
|
|
*arm*-apple-darwin*)
|
|
FFI_EXEC_TRAMPOLINE_TABLE=1
|
|
AC_DEFINE(FFI_EXEC_TRAMPOLINE_TABLE, 1,
|
|
[Cannot use PROT_EXEC on this target, so, we revert to
|
|
alternative means])
|
|
;;
|
|
*-apple-darwin1* | *-*-freebsd* | *-*-kfreebsd* | *-*-openbsd* | *-pc-solaris*)
|
|
AC_DEFINE(FFI_MMAP_EXEC_WRIT, 1,
|
|
[Cannot use malloc on this target, so, we revert to
|
|
alternative means])
|
|
;;
|
|
esac
|
|
AM_CONDITIONAL(FFI_EXEC_TRAMPOLINE_TABLE, test x$FFI_EXEC_TRAMPOLINE_TABLE = x1)
|
|
AC_SUBST(FFI_EXEC_TRAMPOLINE_TABLE)
|
|
|
|
if test x$TARGET = xX86_64; then
|
|
AC_CACHE_CHECK([toolchain supports unwind section type],
|
|
libffi_cv_as_x86_64_unwind_section_type, [
|
|
cat > conftest1.s << EOF
|
|
.text
|
|
.globl foo
|
|
foo:
|
|
jmp bar
|
|
.section .eh_frame,"a",@unwind
|
|
bar:
|
|
EOF
|
|
|
|
cat > conftest2.c << EOF
|
|
extern void foo();
|
|
int main(){foo();}
|
|
EOF
|
|
|
|
libffi_cv_as_x86_64_unwind_section_type=no
|
|
# we ensure that we can compile _and_ link an assembly file containing an @unwind section
|
|
# since the compiler can support it and not the linker (ie old binutils)
|
|
if $CC -Wa,--fatal-warnings $CFLAGS -c conftest1.s > /dev/null 2>&1 && \
|
|
$CC conftest2.c conftest1.o > /dev/null 2>&1 ; then
|
|
libffi_cv_as_x86_64_unwind_section_type=yes
|
|
fi
|
|
])
|
|
if test "x$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
|
|
|
|
if test "x$GCC" = "xyes"; then
|
|
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 -c -fpic -fexceptions -o conftest.o conftest.c > /dev/null 2>&1; then
|
|
objdump -h conftest.o > conftest.dump 2>&1
|
|
libffi_eh_frame_line=`grep -n eh_frame conftest.dump | cut -d: -f 1`
|
|
libffi_test_line=`expr $libffi_eh_frame_line + 1`p
|
|
sed -n $libffi_test_line conftest.dump > conftest.line
|
|
if grep READONLY conftest.line > /dev/null; then
|
|
libffi_cv_ro_eh_frame=yes
|
|
fi
|
|
fi
|
|
rm -f conftest.*
|
|
])
|
|
if test "x$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 $libffi_cv_hidden_visibility_attribute = yes; then
|
|
AC_DEFINE(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE, 1,
|
|
[Define if __attribute__((visibility("hidden"))) is supported.])
|
|
fi
|
|
fi
|
|
|
|
AH_BOTTOM([
|
|
#ifdef HAVE_HIDDEN_VISIBILITY_ATTRIBUTE
|
|
#ifdef LIBFFI_ASM
|
|
#define FFI_HIDDEN(name) .hidden name
|
|
#else
|
|
#define FFI_HIDDEN __attribute__ ((visibility ("hidden")))
|
|
#endif
|
|
#else
|
|
#ifdef LIBFFI_ASM
|
|
#define FFI_HIDDEN(name)
|
|
#else
|
|
#define FFI_HIDDEN
|
|
#endif
|
|
#endif
|
|
])
|
|
|
|
AC_SUBST(TARGET)
|
|
AC_SUBST(TARGETDIR)
|
|
|
|
AC_SUBST(SHELL)
|
|
|
|
AC_ARG_ENABLE(debug,
|
|
[ --enable-debug debugging mode],
|
|
if test "$enable_debug" = "yes"; then
|
|
AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.])
|
|
fi)
|
|
AM_CONDITIONAL(FFI_DEBUG, test "$enable_debug" = "yes")
|
|
|
|
AC_ARG_ENABLE(structs,
|
|
[ --disable-structs omit code for struct support],
|
|
if test "$enable_structs" = "no"; then
|
|
AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this if you do not want support for aggregate types.])
|
|
fi)
|
|
AM_CONDITIONAL(FFI_DEBUG, test "$enable_debug" = "yes")
|
|
|
|
AC_ARG_ENABLE(raw-api,
|
|
[ --disable-raw-api make the raw api unavailable],
|
|
if test "$enable_raw_api" = "no"; then
|
|
AC_DEFINE(FFI_NO_RAW_API, 1, [Define this if you do not want support for the raw API.])
|
|
fi)
|
|
|
|
AC_ARG_ENABLE(purify-safety,
|
|
[ --enable-purify-safety purify-safe mode],
|
|
if test "$enable_purify_safety" = "yes"; then
|
|
AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.])
|
|
fi)
|
|
|
|
# These variables are only ever used when we cross-build to X86_WIN32.
|
|
# And we only support this with GCC, so...
|
|
if test "x$GCC" = "xyes"; then
|
|
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 $CFLAGS -print-multi-os-directory`
|
|
case $multi_os_directory in
|
|
.) ;; # Avoid trailing /.
|
|
../*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
|
|
esac
|
|
AC_SUBST(toolexecdir)
|
|
else
|
|
toolexeclibdir='$(libdir)'
|
|
fi
|
|
AC_SUBST(toolexeclibdir)
|
|
|
|
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 libffi.pc)
|
|
|
|
AC_CONFIG_LINKS(include/ffi_common.h:include/ffi_common.h)
|
|
|
|
AC_CONFIG_FILES(fficonfig.py)
|
|
|
|
AC_OUTPUT
|