352 lines
10 KiB
Plaintext
352 lines
10 KiB
Plaintext
# configure.ac -- Go library configure script.
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# Copyright 2009 The Go Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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# Process this file with autoreconf to produce configure.
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AC_PREREQ(2.64)
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AC_INIT(package-unused, version-unused,, libgo)
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AC_CONFIG_SRCDIR(Makefile.am)
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AC_CONFIG_HEADER(config.h)
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libtool_VERSION=1:0:0
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AC_SUBST(libtool_VERSION)
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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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AM_INIT_AUTOMAKE([1.9.3 no-define foreign -Wall])
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AH_TEMPLATE(PACKAGE, [Name of package])
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AH_TEMPLATE(VERSION, [Version number of package])
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m4_rename([_AC_ARG_VAR_PRECIOUS],[glibgo_PRECIOUS])
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m4_define([_AC_ARG_VAR_PRECIOUS],[])
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AC_PROG_CC
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AC_PROG_GO
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m4_rename_force([glibgo_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
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AC_SUBST(CFLAGS)
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AM_MAINTAINER_MODE
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AC_PROG_LD
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AC_PROG_RANLIB
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AC_CHECK_TOOL(OBJCOPY, objcopy, missing-objcopy)
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AC_LIBTOOL_DLOPEN
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AM_PROG_LIBTOOL
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AC_SUBST(enable_shared)
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AC_SUBST(enable_static)
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WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
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AC_SUBST(WARN_FLAGS)
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dnl FIXME: This should be controlled by --enable-maintainer-mode.
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WERROR="-Werror"
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AC_SUBST(WERROR)
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glibgo_toolexecdir=no
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glibgo_toolexeclibdir=no
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glibgo_prefixdir=$prefix
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AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
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AC_ARG_ENABLE([version-specific-runtime-libs],
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AC_HELP_STRING([--enable-version-specific-runtime-libs],
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[Specify that runtime libraries should be installed in a compiler-specific directory]),
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[case "$enableval" in
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yes) version_specific_libs=yes ;;
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no) version_specific_libs=no ;;
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*) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
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esac],
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[version_specific_libs=no])
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AC_MSG_RESULT($version_specific_libs)
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# Version-specific runtime libs processing.
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if test $version_specific_libs = yes; then
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glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
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glibgo_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)'
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fi
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# Calculate glibgo_toolexecdir, glibgo_toolexeclibdir
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# Install a library built with a cross compiler in tooldir, not libdir.
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if test x"$glibgo_toolexecdir" = x"no"; then
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if test -n "$with_cross_host" &&
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test x"$with_cross_host" != x"no"; then
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glibgo_toolexecdir='${exec_prefix}/${host_alias}'
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glibgo_toolexeclibdir='${toolexecdir}/lib'
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else
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glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
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glibgo_toolexeclibdir='${libdir}'
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fi
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multi_os_directory=`$CC -print-multi-os-directory`
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case $multi_os_directory in
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.) ;; # Avoid trailing /.
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*) glibgo_toolexeclibdir=$glibgo_toolexeclibdir/$multi_os_directory ;;
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esac
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fi
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AC_SUBST(glibgo_prefixdir)
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AC_SUBST(glibgo_toolexecdir)
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AC_SUBST(glibgo_toolexeclibdir)
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# See if the user wants to configure without libffi. Some
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# architectures don't support it. FIXME: We should set a default
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# based on the host.
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AC_ARG_WITH(libffi,
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AS_HELP_STRING([--without-libffi],
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[don't use libffi]),
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[:],
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[with_libffi=${with_libffi_default-yes}])
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LIBFFI=
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LIBFFIINCS=
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if test "$with_libffi" != no; then
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AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.])
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LIBFFI=../libffi/libffi_convenience.la
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LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include'
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fi
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AC_SUBST(LIBFFI)
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AC_SUBST(LIBFFIINCS)
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is_darwin=no
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is_freebsd=no
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is_linux=no
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is_rtems=no
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is_solaris=no
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GOOS=unknown
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case ${host} in
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*-*-darwin*) is_darwin=yes; GOOS=darwin ;;
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*-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;;
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*-*-linux*) is_linux=yes; GOOS=linux ;;
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*-*-rtems*) is_rtems=yes; GOOS=rtems ;;
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*-*-solaris2*) is_solaris=yes; GOOS=solaris ;;
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esac
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AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes)
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AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes)
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AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes)
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AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes)
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AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes)
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AC_SUBST(GOOS)
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dnl N.B. Keep in sync with gcc/testsuite/go.test/go-test.exp (go-set-goarch).
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is_386=no
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is_arm=no
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is_sparc=no
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is_sparc64=no
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is_x86_64=no
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GOARCH=unknown
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case ${host} in
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changequote(,)dnl
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i[34567]86-*-* | x86_64-*-*)
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changequote([,])dnl
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AC_PREPROC_IFELSE([
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#ifdef __x86_64__
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#error 64-bit
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#endif],
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[is_386=yes], [is_x86_64=yes])
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if test "$is_386" = "yes"; then
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is_386=yes
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GOARCH=386
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else
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is_x86_64=yes
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GOARCH=amd64
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fi
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;;
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arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*)
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is_arm=yes
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GOARCH=arm
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;;
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sparc*-*-*)
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AC_PREPROC_IFELSE([
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#if defined(__sparcv9) || defined(__arch64__)
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#error 64-bit
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#endif],
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[is_sparc=yes], [is_sparc64=yes])
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if test "$is_sparc" = "yes"; then
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is_sparc=yes
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GOARCH=sparc
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else
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is_sparc64=yes
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GOARCH=sparc64
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fi
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;;
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esac
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AM_CONDITIONAL(LIBGO_IS_386, test $is_386 = yes)
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AM_CONDITIONAL(LIBGO_IS_ARM, test $is_arm = yes)
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AM_CONDITIONAL(LIBGO_IS_SPARC, test $is_sparc = yes)
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AM_CONDITIONAL(LIBGO_IS_SPARC64, test $is_sparc64 = yes)
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AM_CONDITIONAL(LIBGO_IS_X86_64, test $is_x86_64 = yes)
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AC_SUBST(GOARCH)
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dnl Use -fsplit-stack when compiling C code if available.
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AC_CACHE_CHECK([whether -fsplit-stack is supported],
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[libgo_cv_c_split_stack_supported],
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[CFLAGS_hold=$CFLAGS
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CFLAGS="$CFLAGS -fsplit-stack"
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AC_COMPILE_IFELSE([[int i;]],
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[libgo_cv_c_split_stack_supported=yes],
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[libgo_cv_c_split_stack_supported=no])
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CFLAGS=$CFLAGS_hold])
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if test "$libgo_cv_c_split_stack_supported" = yes; then
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SPLIT_STACK=-fsplit-stack
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AC_DEFINE(USING_SPLIT_STACK, 1,
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[Define if the compiler supports -fsplit-stack])
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else
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SPLIT_STACK=
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fi
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AC_SUBST(SPLIT_STACK)
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AM_CONDITIONAL(USING_SPLIT_STACK,
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test "$libgo_cv_c_split_stack_supported" = yes)
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dnl Check whether the linker does stack munging when calling from
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dnl split-stack into non-split-stack code. We check this by looking
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dnl at the --help output. FIXME: This is only half right: it's
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dnl possible for the linker to support this for some targets but not
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dnl others.
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AC_CACHE_CHECK([whether linker supports split stack],
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[libgo_cv_c_linker_supports_split_stack],
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libgo_cv_c_linker_supports_split_stack=no
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if $LD --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then
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libgo_cv_c_linker_supports_split_stack=yes
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fi)
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if test "$libgo_cv_c_linker_supports_split_stack" = yes; then
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AC_DEFINE(LINKER_SUPPORTS_SPLIT_STACK, 1,
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[Define if the linker support split stack adjustments])
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fi
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dnl Test for the -lm library.
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MATH_LIBS=
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AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm)
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AC_SUBST(MATH_LIBS)
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dnl Test for -lsocket and -lnsl. Copied from libjava/configure.ac.
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AC_CACHE_CHECK([for socket libraries], libgo_cv_lib_sockets,
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[libgo_cv_lib_sockets=
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libgo_check_both=no
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AC_CHECK_FUNC(connect, libgo_check_socket=no, libgo_check_socket=yes)
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if test "$libgo_check_socket" = "yes"; then
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unset ac_cv_func_connect
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AC_CHECK_LIB(socket, main, libgo_cv_lib_sockets="-lsocket",
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libgo_check_both=yes)
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fi
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if test "$libgo_check_both" = "yes"; then
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libgo_old_libs=$LIBS
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LIBS="$LIBS -lsocket -lnsl"
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unset ac_cv_func_accept
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AC_CHECK_FUNC(accept,
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[libgo_check_nsl=no
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libgo_cv_lib_sockets="-lsocket -lnsl"])
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unset ac_cv_func_accept
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LIBS=$libgo_old_libs
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fi
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unset ac_cv_func_gethostbyname
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libgo_old_libs="$LIBS"
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AC_CHECK_FUNC(gethostbyname, ,
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[AC_CHECK_LIB(nsl, main,
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[libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lnsl"])])
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unset ac_cv_func_gethostbyname
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LIBS=$libgo_old_libs
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])
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NET_LIBS="$libgo_cv_lib_sockets"
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AC_SUBST(NET_LIBS)
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dnl Test whether the compiler supports the -pthread option.
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AC_CACHE_CHECK([whether -pthread is supported],
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[libgo_cv_lib_pthread],
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[CFLAGS_hold=$CFLAGS
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CFLAGS="$CFLAGS -pthread"
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AC_COMPILE_IFELSE([[int i;]],
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[libgo_cv_lib_pthread=yes],
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[libgo_cv_lib_pthread=no])
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CFLAGS=$CFLAGS_hold])
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PTHREAD_CFLAGS=
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if test "$libgo_cv_lib_pthread" = yes; then
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PTHREAD_CFLAGS=-pthread
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fi
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AC_SUBST(PTHREAD_CFLAGS)
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dnl Test for the -lpthread library.
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PTHREAD_LIBS=
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AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread)
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AC_SUBST(PTHREAD_LIBS)
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dnl Test if -lrt is required for sched_yield.
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AC_SEARCH_LIBS([sched_yield], [rt])
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AC_C_BIGENDIAN
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GCC_CHECK_UNWIND_GETIPINFO
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AC_CHECK_HEADERS(sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/user.h sys/utsname.h)
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AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes)
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AC_CHECK_FUNCS(srandom random strsignal)
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dnl For x86 we want to use the -minline-all-stringops option to avoid
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dnl forcing a stack split when calling memcpy and friends.
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AC_CACHE_CHECK([whether compiler supports -minline-all-stringops],
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[libgo_cv_c_stringops],
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[CFLAGS_hold=$CFLAGS
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CFLAGS="$CFLAGS -minline-all-stringops"
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AC_COMPILE_IFELSE([int i;],
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[libgo_cv_c_stringops=yes],
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[libgo_cv_c_stringops=no])
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CFLAGS=$CFLAGS_hold])
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STRINGOPS_FLAG=
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if test "$libgo_cv_c_stringops" = yes; then
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STRINGOPS_FLAG=-minline-all-stringops
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fi
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AC_SUBST(STRINGOPS_FLAG)
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CFLAGS_hold=$CFLAGS
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CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"
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AC_CHECK_TYPES(off64_t)
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CFLAGS=$CFLAGS_hold
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AC_CACHE_SAVE
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if test ${multilib} = yes; then
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multilib_arg="--enable-multilib"
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else
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multilib_arg=
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fi
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AC_CONFIG_FILES(Makefile testsuite/Makefile)
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AC_CONFIG_COMMANDS([default],
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[if test -n "$CONFIG_FILES"; then
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# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
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# that multilib installs will end up installed in the correct place.
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# The testsuite needs it for multilib-aware ABI baseline files.
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# To work around this not being passed down from config-ml.in ->
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# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
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# append it here. Only modify Makefiles that have just been created.
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#
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# Also, get rid of this simulated-VPATH thing that automake does.
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cat > vpsed << \_EOF
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s!`test -f '$<' || echo '$(srcdir)/'`!!
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_EOF
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for i in $SUBDIRS; do
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case $CONFIG_FILES in
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*${i}/Makefile*)
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#echo "Adding MULTISUBDIR to $i/Makefile"
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sed -f vpsed $i/Makefile > tmp
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grep '^MULTISUBDIR =' Makefile >> tmp
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mv tmp $i/Makefile
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;;
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esac
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done
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rm vpsed
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fi
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],
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[
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# Variables needed in config.status (file generation) which aren't already
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# passed by autoconf.
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SUBDIRS="$SUBDIRS"
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])
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AC_OUTPUT
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