Subversion Repositories openrisc

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, changeable 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* | i?86-*-os2*)

        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-*-darwin*)

        TARGET=X86_DARWIN; TARGETDIR=x86

        ;;

  i?86-*-solaris2.1[[0-9]]*)

        TARGET=X86_64; TARGETDIR=x86

        ;;

  i?86-*-*)

        TARGET=X86_64; TARGETDIR=x86

        ;;

  ia64*-*-*)

        TARGET=IA64; TARGETDIR=ia64

        ;;

  m32r*-*-*)

        TARGET=M32R; TARGETDIR=m32r

        ;;

  m68k-*-*)

        TARGET=M68K; TARGETDIR=m68k

        ;;

  mips-sgi-irix5.* | mips-sgi-irix6.* | mips*-*-rtems*)

        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

        ;;

 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

        ;;

  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

        ;;

  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

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=yes

        echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s

        if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|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

    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

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