mirror of
https://gcc.gnu.org/git/gcc.git
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253 lines
8.6 KiB
Plaintext
253 lines
8.6 KiB
Plaintext
dnl Process this with autoconf to create configure
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AC_PREREQ(2.59)
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AC_INIT([libffi], [2.1], [http://gcc.gnu.org/bugs.html])
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AC_CONFIG_HEADERS([fficonfig.h])
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AM_ENABLE_MULTILIB(, ..)
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AC_CANONICAL_SYSTEM
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target_alias=${target_alias-$host_alias}
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. ${srcdir}/configure.host
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AM_INIT_AUTOMAKE
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# The same as in boehm-gc and libstdc++. Have to borrow it from there.
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# We must force CC to /not/ be precious variables; otherwise
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# the wrong, non-multilib-adjusted value will be used in multilibs.
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# As a side effect, we have to subst CFLAGS ourselves.
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m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
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m4_define([_AC_ARG_VAR_PRECIOUS],[])
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AC_PROG_CC
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m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
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AC_SUBST(CFLAGS)
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AM_PROG_AS
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AM_PROG_CC_C_O
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AC_PROG_LIBTOOL
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AM_MAINTAINER_MODE
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AC_CHECK_HEADERS(sys/mman.h)
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AC_CHECK_FUNCS(mmap)
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AC_FUNC_MMAP_BLACKLIST
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dnl The -no-testsuite modules omit the test subdir.
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AM_CONDITIONAL(TESTSUBDIR, test -d $srcdir/testsuite)
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TARGETDIR="unknown"
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case "$host" in
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i*86-*-linux*) TARGET=X86; TARGETDIR=x86;;
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i*86-*-solaris*) TARGET=X86; TARGETDIR=x86;;
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i*86-*-beos*) TARGET=X86; TARGETDIR=x86;;
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i*86-*-freebsd* | i*86-*-kfreebsd*-gnu) TARGET=X86; TARGETDIR=x86;;
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i*86-*-netbsdelf* | i*86-*-knetbsd*-gnu) TARGET=X86; TARGETDIR=x86;;
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i*86-*-rtems*) TARGET=X86; TARGETDIR=x86;;
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i*86-*-win32*) TARGET=X86_WIN32; TARGETDIR=x86;;
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i*86-*-cygwin*) TARGET=X86_WIN32; TARGETDIR=x86;;
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i*86-*-mingw*) TARGET=X86_WIN32; TARGETDIR=x86;;
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frv-*-*) TARGET=FRV; TARGETDIR=frv;;
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sparc-sun-4*) TARGET=SPARC; TARGETDIR=sparc;;
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sparc*-sun-*) TARGET=SPARC; TARGETDIR=sparc;;
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sparc-*-linux* | sparc-*-netbsdelf* | sparc-*-knetbsd*-gnu) TARGET=SPARC; TARGETDIR=sparc;;
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sparc*-*-rtems*) TARGET=SPARC; TARGETDIR=sparc;;
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sparc64-*-linux* | sparc64-*-netbsd* | sparc64-*-knetbsd*-gnu) TARGET=SPARC; TARGETDIR=sparc;;
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alpha*-*-linux* | alpha*-*-osf* | alpha*-*-freebsd* | alpha*-*-kfreebsd*-gnu | alpha*-*-netbsd* | alpha*-*-knetbsd*-gnu) TARGET=ALPHA; TARGETDIR=alpha;;
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ia64*-*-*) TARGET=IA64; TARGETDIR=ia64;;
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m32r*-*-linux* ) TARGET=M32R; TARGETDIR=m32r;;
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m68k-*-linux*) TARGET=M68K; TARGETDIR=m68k;;
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mips64*-*);;
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mips-sgi-irix5.* | mips-sgi-irix6.*) TARGET=MIPS_IRIX; TARGETDIR=mips;;
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mips*-*-linux*) TARGET=MIPS_LINUX; TARGETDIR=mips;;
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powerpc*-*-linux* | powerpc-*-sysv*) TARGET=POWERPC; TARGETDIR=powerpc;;
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powerpc-*-beos*) TARGET=POWERPC; TARGETDIR=powerpc;;
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powerpc-*-darwin*) TARGET=POWERPC_DARWIN; TARGETDIR=powerpc;;
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powerpc-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
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powerpc*-*-rtems*) TARGET=POWERPC; TARGETDIR=powerpc;;
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rs6000-*-aix*) TARGET=POWERPC_AIX; TARGETDIR=powerpc;;
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arm*-*-linux-*) TARGET=ARM; TARGETDIR=arm;;
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arm*-*-netbsdelf* | arm*-*-knetbsd*-gnu) TARGET=ARM; TARGETDIR=arm;;
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arm*-*-rtems*) TARGET=ARM; TARGETDIR=arm;;
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cris-*-*) TARGET=LIBFFI_CRIS; TARGETDIR=cris;;
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s390-*-linux-*) TARGET=S390; TARGETDIR=s390;;
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s390x-*-linux-*) TARGET=S390; TARGETDIR=s390;;
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x86_64-*-linux* | x86_64-*-freebsd* | x86_64-*-kfreebsd*-gnu) TARGET=X86_64; TARGETDIR=x86;;
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sh-*-linux* | sh[[34]]*-*-linux*) TARGET=SH; TARGETDIR=sh;;
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sh-*-rtems*) TARGET=SH; TARGETDIR=sh;;
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sh64-*-linux* | sh5*-*-linux*) TARGET=SH64; TARGETDIR=sh64;;
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hppa-*-linux* | parisc-*-linux*) TARGET=PA; TARGETDIR=pa;;
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esac
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AC_SUBST(AM_RUNTESTFLAGS)
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if test $TARGETDIR = unknown; then
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AC_MSG_ERROR(["libffi has not been ported to $host."])
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fi
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AM_CONDITIONAL(MIPS_IRIX, test x$TARGET = xMIPS_IRIX)
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AM_CONDITIONAL(MIPS_LINUX, test x$TARGET = xMIPS_LINUX)
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AM_CONDITIONAL(SPARC, test x$TARGET = xSPARC)
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AM_CONDITIONAL(X86, test x$TARGET = xX86)
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AM_CONDITIONAL(X86_WIN32, test x$TARGET = xX86_WIN32)
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AM_CONDITIONAL(ALPHA, test x$TARGET = xALPHA)
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AM_CONDITIONAL(IA64, test x$TARGET = xIA64)
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AM_CONDITIONAL(M32R, test x$TARGET = xM32R)
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AM_CONDITIONAL(M68K, test x$TARGET = xM68K)
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AM_CONDITIONAL(POWERPC, test x$TARGET = xPOWERPC)
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AM_CONDITIONAL(POWERPC_AIX, test x$TARGET = xPOWERPC_AIX)
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AM_CONDITIONAL(POWERPC_DARWIN, test x$TARGET = xPOWERPC_DARWIN)
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AM_CONDITIONAL(ARM, test x$TARGET = xARM)
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AM_CONDITIONAL(LIBFFI_CRIS, test x$TARGET = xLIBFFI_CRIS)
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AM_CONDITIONAL(FRV, test x$TARGET = xFRV)
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AM_CONDITIONAL(S390, test x$TARGET = xS390)
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AM_CONDITIONAL(X86_64, test x$TARGET = xX86_64)
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AM_CONDITIONAL(SH, test x$TARGET = xSH)
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AM_CONDITIONAL(SH64, test x$TARGET = xSH64)
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AM_CONDITIONAL(PA, test x$TARGET = xPA)
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case x$TARGET in
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xMIPS*) TARGET=MIPS ;;
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*) ;;
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esac
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AC_HEADER_STDC
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AC_CHECK_FUNCS(memcpy)
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AC_FUNC_ALLOCA
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AC_COMPILE_CHECK_SIZEOF(double)
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AC_COMPILE_CHECK_SIZEOF(long double)
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# Also AC_SUBST this variable for ffi.h.
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HAVE_LONG_DOUBLE=0
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if test $ac_cv_sizeof_double != $ac_cv_sizeof_long_double; then
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if test $ac_cv_sizeof_long_double != 0; then
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HAVE_LONG_DOUBLE=1
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AC_DEFINE(HAVE_LONG_DOUBLE, 1, [Define if you have the long double type and it is bigger than a double])
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fi
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fi
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AC_SUBST(HAVE_LONG_DOUBLE)
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AC_C_BIGENDIAN_CROSS
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if test x$TARGET = xSPARC; then
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AC_CACHE_CHECK([assembler and linker support unaligned pc related relocs],
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libffi_cv_as_sparc_ua_pcrel, [
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save_CFLAGS="$CFLAGS"
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save_LDFLAGS="$LDFLAGS"
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CFLAGS="$CFLAGS -fpic"
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LDFLAGS="$LDFLAGS -shared"
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AC_TRY_LINK([asm (".text; foo: nop; .data; .align 4; .byte 0; .uaword %r_disp32(foo); .text");],,
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[libffi_cv_as_sparc_ua_pcrel=yes],
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[libffi_cv_as_sparc_ua_pcrel=no])
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CFLAGS="$save_CFLAGS"
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LDFLAGS="$save_LDFLAGS"])
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if test "x$libffi_cv_as_sparc_ua_pcrel" = xyes; then
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AC_DEFINE(HAVE_AS_SPARC_UA_PCREL, 1,
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[Define if your assembler and linker support unaligned PC relative relocs.])
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fi
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AC_CACHE_CHECK([assembler .register pseudo-op support],
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libffi_cv_as_register_pseudo_op, [
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libffi_cv_as_register_pseudo_op=unknown
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# Check if we have .register
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AC_TRY_COMPILE([asm (".register %g2, #scratch");],,
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[libffi_cv_as_register_pseudo_op=yes],
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[libffi_cv_as_register_pseudo_op=no])
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])
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if test "x$libffi_cv_as_register_pseudo_op" = xyes; then
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AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
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[Define if your assembler supports .register.])
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fi
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fi
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AC_CACHE_CHECK([whether .eh_frame section should be read-only],
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libffi_cv_ro_eh_frame, [
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libffi_cv_ro_eh_frame=no
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echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c
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if $CC $CFLAGS -S -fpic -fexceptions -o conftest.s conftest.c > /dev/null 2>&1; then
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if grep '.section.*eh_frame.*"a"' conftest.s > /dev/null; then
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libffi_cv_ro_eh_frame=yes
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elif grep '.section.*eh_frame.*#alloc' conftest.c \
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| grep -v '#write' > /dev/null; then
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libffi_cv_ro_eh_frame=yes
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fi
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fi
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rm -f conftest.*
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])
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if test "x$libffi_cv_ro_eh_frame" = xyes; then
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AC_DEFINE(HAVE_RO_EH_FRAME, 1,
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[Define if .eh_frame sections should be read-only.])
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AC_DEFINE(EH_FRAME_FLAGS, "a",
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[Define to the flags needed for the .section .eh_frame directive.])
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else
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AC_DEFINE(EH_FRAME_FLAGS, "aw",
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[Define to the flags needed for the .section .eh_frame directive.])
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fi
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AC_SUBST(TARGET)
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AC_SUBST(TARGETDIR)
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AC_SUBST(SHELL)
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AC_ARG_ENABLE(debug,
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[ --enable-debug debugging mode],
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if test "$enable_debug" = "yes"; then
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AC_DEFINE(FFI_DEBUG, 1, [Define this if you want extra debugging.])
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fi)
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AC_ARG_ENABLE(structs,
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[ --disable-structs omit code for struct support],
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if test "$enable_structs" = "no"; then
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AC_DEFINE(FFI_NO_STRUCTS, 1, [Define this is you do not want support for aggregate types.])
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fi)
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AC_ARG_ENABLE(raw-api,
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[ --disable-raw-api make the raw api unavailable],
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if test "$enable_raw_api" = "no"; then
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AC_DEFINE(FFI_NO_RAW_API, 1, [Define this is you do not want support for the raw API.])
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fi)
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AC_ARG_ENABLE(purify-safety,
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[ --enable-purify-safety purify-safe mode],
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if test "$enable_purify_safety" = "yes"; then
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AC_DEFINE(USING_PURIFY, 1, [Define this if you are using Purify and want to suppress spurious messages.])
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fi)
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if test -n "$with_cross_host" &&
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test x"$with_cross_host" != x"no"; then
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toolexecdir='$(exec_prefix)/$(target_alias)'
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toolexeclibdir='$(toolexecdir)/lib'
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else
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toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
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toolexeclibdir='$(libdir)'
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fi
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multi_os_directory=`$CC -print-multi-os-directory`
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case $multi_os_directory in
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.) ;; # Avoid trailing /.
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*) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
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esac
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AC_SUBST(toolexecdir)
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AC_SUBST(toolexeclibdir)
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if test "${multilib}" = "yes"; then
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multilib_arg="--enable-multilib"
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else
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multilib_arg=
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fi
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AC_CONFIG_COMMANDS(include, [test -d include || mkdir include])
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AC_CONFIG_COMMANDS(src, [
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test -d src || mkdir src
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test -d src/$TARGETDIR || mkdir src/$TARGETDIR
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], [TARGETDIR="$TARGETDIR"])
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AC_CONFIG_LINKS(include/ffitarget.h:src/$TARGETDIR/ffitarget.h)
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AC_CONFIG_FILES(include/Makefile include/ffi.h Makefile testsuite/Makefile)
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AC_OUTPUT
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