diff options
Diffstat (limited to 'libgo/configure.ac')
| -rw-r--r-- | libgo/configure.ac | 476 |
1 files changed, 476 insertions, 0 deletions
diff --git a/libgo/configure.ac b/libgo/configure.ac new file mode 100644 index 000000000..56306641e --- /dev/null +++ b/libgo/configure.ac @@ -0,0 +1,476 @@ +# configure.ac -- Go library configure script. + +# Copyright 2009 The Go Authors. All rights reserved. +# Use of this source code is governed by a BSD-style +# license that can be found in the LICENSE file. + +# Process this file with autoreconf to produce configure. + +AC_PREREQ(2.64) +AC_INIT(package-unused, version-unused,, libgo) +AC_CONFIG_SRCDIR(Makefile.am) +AC_CONFIG_HEADER(config.h) + +libtool_VERSION=1:0:0 +AC_SUBST(libtool_VERSION) + +AM_ENABLE_MULTILIB(, ..) + +AC_CANONICAL_SYSTEM +target_alias=${target_alias-$host_alias} + +AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist -Wall]) +AH_TEMPLATE(PACKAGE, [Name of package]) +AH_TEMPLATE(VERSION, [Version number of package]) + +m4_rename([_AC_ARG_VAR_PRECIOUS],[glibgo_PRECIOUS]) +m4_define([_AC_ARG_VAR_PRECIOUS],[]) +AC_PROG_CC +AC_PROG_GO +m4_rename_force([glibgo_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) + +AC_SUBST(CFLAGS) + +AM_MAINTAINER_MODE + +AC_PROG_LD +AC_PROG_RANLIB +AC_CHECK_TOOL(OBJCOPY, objcopy, missing-objcopy) + +AC_LIBTOOL_DLOPEN +AM_PROG_LIBTOOL +AC_SUBST(enable_shared) +AC_SUBST(enable_static) + +WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual' +AC_SUBST(WARN_FLAGS) + +dnl FIXME: This should be controlled by --enable-maintainer-mode. +WERROR="-Werror" +AC_SUBST(WERROR) + +glibgo_toolexecdir=no +glibgo_toolexeclibdir=no +glibgo_prefixdir=$prefix + +AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) +AC_ARG_ENABLE([version-specific-runtime-libs], + AC_HELP_STRING([--enable-version-specific-runtime-libs], + [Specify that runtime libraries should be installed in a compiler-specific directory]), + [case "$enableval" in + yes) version_specific_libs=yes ;; + no) version_specific_libs=no ;; + *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; + esac], + [version_specific_libs=no]) +AC_MSG_RESULT($version_specific_libs) + +# Version-specific runtime libs processing. +if test $version_specific_libs = yes; then + glibgo_toolexecdir='${libdir}/gcc/${host_alias}' + glibgo_toolexeclibdir='${toolexecdir}/${gcc_version}$(MULTISUBDIR)' +fi + +# Calculate glibgo_toolexecdir, glibgo_toolexeclibdir +# Install a library built with a cross compiler in tooldir, not libdir. +if test x"$glibgo_toolexecdir" = x"no"; then + if test -n "$with_cross_host" && + test x"$with_cross_host" != x"no"; then + glibgo_toolexecdir='${exec_prefix}/${host_alias}' + glibgo_toolexeclibdir='${toolexecdir}/lib' + else + glibgo_toolexecdir='${libdir}/gcc/${host_alias}' + glibgo_toolexeclibdir='${libdir}' + fi + multi_os_directory=`$CC -print-multi-os-directory` + case $multi_os_directory in + .) ;; # Avoid trailing /. + *) glibgo_toolexeclibdir=$glibgo_toolexeclibdir/$multi_os_directory ;; + esac +fi + +AC_SUBST(glibgo_prefixdir) +AC_SUBST(glibgo_toolexecdir) +AC_SUBST(glibgo_toolexeclibdir) + +# See if the user wants to configure without libffi. Some +# architectures don't support it. FIXME: We should set a default +# based on the host. +AC_ARG_WITH(libffi, + AS_HELP_STRING([--without-libffi], + [don't use libffi]), + [:], + [with_libffi=${with_libffi_default-yes}]) + +LIBFFI= +LIBFFIINCS= +if test "$with_libffi" != no; then + AC_DEFINE(USE_LIBFFI, 1, [Define if we're to use libffi.]) + LIBFFI=../libffi/libffi_convenience.la + LIBFFIINCS='-I$(top_srcdir)/../libffi/include -I../libffi/include' +fi +AC_SUBST(LIBFFI) +AC_SUBST(LIBFFIINCS) + +is_darwin=no +is_freebsd=no +is_linux=no +is_rtems=no +is_solaris=no +GOOS=unknown +case ${host} in + *-*-darwin*) is_darwin=yes; GOOS=darwin ;; + *-*-freebsd*) is_freebsd=yes; GOOS=freebsd ;; + *-*-linux*) is_linux=yes; GOOS=linux ;; + *-*-rtems*) is_rtems=yes; GOOS=rtems ;; + *-*-solaris2*) is_solaris=yes; GOOS=solaris ;; +esac +AM_CONDITIONAL(LIBGO_IS_DARWIN, test $is_darwin = yes) +AM_CONDITIONAL(LIBGO_IS_FREEBSD, test $is_freebsd = yes) +AM_CONDITIONAL(LIBGO_IS_LINUX, test $is_linux = yes) +AM_CONDITIONAL(LIBGO_IS_RTEMS, test $is_rtems = yes) +AM_CONDITIONAL(LIBGO_IS_SOLARIS, test $is_solaris = yes) +AC_SUBST(GOOS) + +dnl N.B. Keep in sync with gcc/testsuite/go.test/go-test.exp (go-set-goarch). +is_386=no +is_arm=no +is_m68k=no +is_mips=no +is_mips64=no +is_ppc=no +is_ppc64=no +is_sparc=no +is_sparc64=no +is_x86_64=no +GOARCH=unknown +case ${host} in + arm*-*-* | strongarm*-*-* | ep9312*-*-* | xscale-*-*) + is_arm=yes + GOARCH=arm + ;; +changequote(,)dnl + i[34567]86-*-* | x86_64-*-*) +changequote([,])dnl + AC_COMPILE_IFELSE([ +#ifdef __x86_64__ +#error 64-bit +#endif], +[is_386=yes], [is_x86_64=yes]) + if test "$is_386" = "yes"; then + GOARCH=386 + else + GOARCH=amd64 + fi + ;; + m68k*-*-*) + is_m68k=yes + GOARCH=m68k + ;; + mips*-*-*) + AC_COMPILE_IFELSE([ +#ifdef __mips64 +#error 64-bit +#endif], +[is_mips=yes], [is_mips64=yes]) + if test "$is_mips" = "yes"; then + GOARCH=mips + else + GOARCH=mips64 + fi + ;; + rs6000*-*-* | powerpc*-*-*) + AC_COMPILE_IFELSE([ +#ifdef _ARCH_PPC64 +#error 64-bit +#endif], +[is_ppc=yes], [is_ppc64=yes]) + if test "$is_ppc" = "yes"; then + GOARCH=ppc + else + GOARCH=ppc64 + fi + ;; + sparc*-*-*) + AC_COMPILE_IFELSE([ +#if defined(__sparcv9) || defined(__arch64__) +#error 64-bit +#endif], +[is_sparc=yes], [is_sparc64=yes]) + if test "$is_sparc" = "yes"; then + GOARCH=sparc + else + GOARCH=sparc64 + fi + ;; +esac +AM_CONDITIONAL(LIBGO_IS_386, test $is_386 = yes) +AM_CONDITIONAL(LIBGO_IS_ARM, test $is_arm = yes) +AM_CONDITIONAL(LIBGO_IS_M68K, test $is_m68k = yes) +AM_CONDITIONAL(LIBGO_IS_MIPS, test $is_mips = yes) +AM_CONDITIONAL(LIBGO_IS_MIPS64, test $is_mips64 = yes) +AM_CONDITIONAL(LIBGO_IS_PPC, test $is_ppc = yes) +AM_CONDITIONAL(LIBGO_IS_PPC64, test $is_ppc64 = yes) +AM_CONDITIONAL(LIBGO_IS_SPARC, test $is_sparc = yes) +AM_CONDITIONAL(LIBGO_IS_SPARC64, test $is_sparc64 = yes) +AM_CONDITIONAL(LIBGO_IS_X86_64, test $is_x86_64 = yes) +AC_SUBST(GOARCH) + +dnl Some files are only present when needed for specific architectures. +GO_SYSCALLS_SYSCALL_OS_ARCH_FILE= +if test -f ${srcdir}/syscalls/syscall_${GOOS}_${GOARCH}.go; then + GO_SYSCALLS_SYSCALL_OS_ARCH_FILE=syscalls/syscall_${GOOS}_${GOARCH}.go +fi +AC_SUBST(GO_SYSCALLS_SYSCALL_OS_ARCH_FILE) + +GO_DEBUG_PROC_REGS_OS_ARCH_FILE= +if test -f ${srcdir}/go/debug/proc/regs_${GOOS}_${GOARCH}.go; then + GO_DEBUG_PROC_REGS_OS_ARCH_FILE=go/debug/proc/regs_${GOOS}_${GOARCH}.go +fi +AC_SUBST(GO_DEBUG_PROC_REGS_OS_ARCH_FILE) + +dnl Use -fsplit-stack when compiling C code if available. +AC_CACHE_CHECK([whether -fsplit-stack is supported], +[libgo_cv_c_split_stack_supported], +[CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -fsplit-stack" +AC_COMPILE_IFELSE([[int i;]], +[libgo_cv_c_split_stack_supported=yes], +[libgo_cv_c_split_stack_supported=no]) +CFLAGS=$CFLAGS_hold]) +if test "$libgo_cv_c_split_stack_supported" = yes; then + SPLIT_STACK=-fsplit-stack + AC_DEFINE(USING_SPLIT_STACK, 1, + [Define if the compiler supports -fsplit-stack]) +else + SPLIT_STACK= +fi +AC_SUBST(SPLIT_STACK) +AM_CONDITIONAL(USING_SPLIT_STACK, + test "$libgo_cv_c_split_stack_supported" = yes) + +dnl Check whether the linker does stack munging when calling from +dnl split-stack into non-split-stack code. We check this by looking +dnl at the --help output. FIXME: This is only half right: it's +dnl possible for the linker to support this for some targets but not +dnl others. +AC_CACHE_CHECK([whether linker supports split stack], +[libgo_cv_c_linker_supports_split_stack], +libgo_cv_c_linker_supports_split_stack=no +if $LD --help 2>/dev/null | grep split-stack-adjust-size >/dev/null 2>&1; then + libgo_cv_c_linker_supports_split_stack=yes +fi) +if test "$libgo_cv_c_linker_supports_split_stack" = yes; then + AC_DEFINE(LINKER_SUPPORTS_SPLIT_STACK, 1, + [Define if the linker support split stack adjustments]) +fi + +dnl Test for the -lm library. +MATH_LIBS= +AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm) +AC_SUBST(MATH_LIBS) + +dnl Test for -lsocket and -lnsl. Copied from libjava/configure.ac. +AC_CACHE_CHECK([for socket libraries], libgo_cv_lib_sockets, + [libgo_cv_lib_sockets= + libgo_check_both=no + AC_CHECK_FUNC(connect, libgo_check_socket=no, libgo_check_socket=yes) + if test "$libgo_check_socket" = "yes"; then + unset ac_cv_func_connect + AC_CHECK_LIB(socket, main, libgo_cv_lib_sockets="-lsocket", + libgo_check_both=yes) + fi + if test "$libgo_check_both" = "yes"; then + libgo_old_libs=$LIBS + LIBS="$LIBS -lsocket -lnsl" + unset ac_cv_func_accept + AC_CHECK_FUNC(accept, + [libgo_check_nsl=no + libgo_cv_lib_sockets="-lsocket -lnsl"]) + unset ac_cv_func_accept + LIBS=$libgo_old_libs + fi + unset ac_cv_func_gethostbyname + libgo_old_libs="$LIBS" + AC_CHECK_FUNC(gethostbyname, , + [AC_CHECK_LIB(nsl, main, + [libgo_cv_lib_sockets="$libgo_cv_lib_sockets -lnsl"])]) + unset ac_cv_func_gethostbyname + LIBS=$libgo_old_libs +]) +NET_LIBS="$libgo_cv_lib_sockets" +AC_SUBST(NET_LIBS) + +dnl Test whether the compiler supports the -pthread option. +AC_CACHE_CHECK([whether -pthread is supported], +[libgo_cv_lib_pthread], +[CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -pthread" +AC_COMPILE_IFELSE([[int i;]], +[libgo_cv_lib_pthread=yes], +[libgo_cv_lib_pthread=no]) +CFLAGS=$CFLAGS_hold]) +PTHREAD_CFLAGS= +if test "$libgo_cv_lib_pthread" = yes; then + PTHREAD_CFLAGS=-pthread +fi +AC_SUBST(PTHREAD_CFLAGS) + +dnl Test for the -lpthread library. +PTHREAD_LIBS= +AC_CHECK_LIB([pthread], [pthread_create], PTHREAD_LIBS=-lpthread) +AC_SUBST(PTHREAD_LIBS) + +dnl Test if -lrt is required for sched_yield. +AC_SEARCH_LIBS([sched_yield], [rt]) + +AC_C_BIGENDIAN + +GCC_CHECK_UNWIND_GETIPINFO + +AC_ARG_ENABLE(sjlj-exceptions, + AC_HELP_STRING([--enable-sjlj-exceptions], + [force use of builtin_setjmp for exceptions]), + [case "$enableval" in + yes|no|auto) ;; + *) AC_MSG_ERROR([unknown argument to --enable-sjlj-exceptions]) ;; + esac], + [enable_sjlj_exceptions=auto]) + +AC_CACHE_CHECK([whether to use setjmp/longjmp exceptions], +[libgo_cv_lib_sjlj_exceptions], +[AC_LANG_CONFTEST( + [AC_LANG_SOURCE([ +void bar (); +void clean (int *); +void foo () +{ + int i __attribute__ ((cleanup (clean))); + bar(); +} +])]) +CFLAGS_hold=$CFLAGS +CFLAGS="--save-temps -fexceptions" +libgo_cv_lib_sjlj_exceptions=unknown +AS_IF([ac_fn_c_try_compile], + [if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then + libgo_cv_lib_sjlj_exceptions=yes + elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then + libgo_cv_lib_sjlj_exceptions=no + fi]) +CFLAGS=$CFLAGS_hold +rm -f conftest* +]) + +if test "$enable_sjlj_exceptions" = "auto"; then + enable_sjlj_exceptions=$libgo_cv_lib_sjlj_exceptions +fi + +case $enable_sjlj_exceptions in +yes) + AC_DEFINE(LIBGO_SJLJ_EXCEPTIONS, 1, + [Define if the C++ compiler is configured for setjmp/longjmp exceptions.]) + ;; +no) + ;; +*) + AC_MSG_ERROR([unable to detect exception model]) + ;; +esac + +AC_CHECK_HEADERS(sys/mman.h syscall.h sys/epoll.h sys/ptrace.h sys/syscall.h sys/user.h sys/utsname.h) +AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes) +AC_CHECK_FUNCS(srandom random strsignal) + +AC_CACHE_CHECK([for __sync_bool_compare_and_swap_4], +[libgo_cv_func___sync_bool_compare_and_swap_4], +[AC_LINK_IFELSE([ +typedef unsigned int uint32 __attribute__ ((mode (SI))); +uint32 i; +int main() { return __sync_bool_compare_and_swap (&i, 0, 1); } +], +[libgo_cv_func___sync_bool_compare_and_swap_4=yes], +[libgo_cv_func___sync_bool_compare_and_swap_4=no])]) +if test "$libgo_cv_func___sync_bool_compare_and_swap_4" = "yes"; then + AC_DEFINE(HAVE_SYNC_BOOL_COMPARE_AND_SWAP_4, 1, + [Define to 1 if the compiler provides the __sync_bool_compare_and_swap function for uint32]) +fi + +AC_CACHE_CHECK([for __sync_fetch_and_add_4], +[libgo_cv_func___sync_fetch_and_add_4], +[AC_LINK_IFELSE([ +typedef unsigned int uint32 __attribute__ ((mode (SI))); +uint32 i; +int main() { return __sync_fetch_and_add (&i, 1); } +], +[libgo_cv_func___sync_fetch_and_add_4=yes], +[libgo_cv_func___sync_fetch_and_add_4=no])]) +if test "$libgo_cv_func___sync_fetch_and_add_4" = "yes"; then + AC_DEFINE(HAVE_SYNC_FETCH_AND_ADD_4, 1, + [Define to 1 if the compiler provides the __sync_fetch_and_add function for uint32]) +fi + +dnl For x86 we want to use the -minline-all-stringops option to avoid +dnl forcing a stack split when calling memcpy and friends. +AC_CACHE_CHECK([whether compiler supports -minline-all-stringops], +[libgo_cv_c_stringops], +[CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -minline-all-stringops" +AC_COMPILE_IFELSE([int i;], +[libgo_cv_c_stringops=yes], +[libgo_cv_c_stringops=no]) +CFLAGS=$CFLAGS_hold]) +STRINGOPS_FLAG= +if test "$libgo_cv_c_stringops" = yes; then + STRINGOPS_FLAG=-minline-all-stringops +fi +AC_SUBST(STRINGOPS_FLAG) + +CFLAGS_hold=$CFLAGS +CFLAGS="$CFLAGS -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" +AC_CHECK_TYPES(off64_t) +CFLAGS=$CFLAGS_hold + +AC_CACHE_SAVE + +if test ${multilib} = yes; then + multilib_arg="--enable-multilib" +else + multilib_arg= +fi + +AC_CONFIG_FILES(Makefile testsuite/Makefile) + +AC_CONFIG_COMMANDS([default], +[if test -n "$CONFIG_FILES"; then + # Multilibs need MULTISUBDIR defined correctly in certain makefiles so + # that multilib installs will end up installed in the correct place. + # The testsuite needs it for multilib-aware ABI baseline files. + # To work around this not being passed down from config-ml.in -> + # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually + # append it here. Only modify Makefiles that have just been created. + # + # Also, get rid of this simulated-VPATH thing that automake does. + cat > vpsed << \_EOF +s!`test -f '$<' || echo '$(srcdir)/'`!! +_EOF + for i in $SUBDIRS; do + case $CONFIG_FILES in + *${i}/Makefile*) + #echo "Adding MULTISUBDIR to $i/Makefile" + sed -f vpsed $i/Makefile > tmp + grep '^MULTISUBDIR =' Makefile >> tmp + mv tmp $i/Makefile + ;; + esac + done + rm vpsed + fi +], +[ +# Variables needed in config.status (file generation) which aren't already +# passed by autoconf. +SUBDIRS="$SUBDIRS" +]) + +AC_OUTPUT |