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Diffstat (limited to 'libgo/configure.ac')
-rw-r--r--libgo/configure.ac118
1 files changed, 85 insertions, 33 deletions
diff --git a/libgo/configure.ac b/libgo/configure.ac
index 754e1906c6..0baff412de 100644
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -11,7 +11,7 @@ AC_INIT(package-unused, version-unused,, libgo)
AC_CONFIG_SRCDIR(Makefile.am)
AC_CONFIG_HEADER(config.h)
-libtool_VERSION=5:0:0
+libtool_VERSION=7:0:0
AC_SUBST(libtool_VERSION)
AM_ENABLE_MULTILIB(, ..)
@@ -88,7 +88,7 @@ else
nover_glibgo_toolexecdir='${libdir}/gcc/${host_alias}'
nover_glibgo_toolexeclibdir='${libdir}'
fi
-multi_os_directory=`$CC -print-multi-os-directory`
+multi_os_directory=`$GOC -print-multi-os-directory`
case $multi_os_directory in
.) ;; # Avoid trailing /.
*) nover_glibgo_toolexeclibdir=${nover_glibgo_toolexeclibdir}/${multi_os_directory} ;;
@@ -122,6 +122,21 @@ fi
AC_SUBST(LIBFFI)
AC_SUBST(LIBFFIINCS)
+# See if the user wants to configure without libatomic. This is useful if we are
+# on an architecture for which libgo does not need an atomic support library and
+# libatomic does not support our C compiler.
+AC_ARG_WITH(libatomic,
+ AS_HELP_STRING([--without-libatomic],
+ [don't use libatomic]),
+ [:],
+ [with_libatomic=${with_libatomic_default-yes}])
+
+LIBATOMIC=
+if test "$with_libatomic" != no; then
+ LIBATOMIC=../libatomic/libatomic_convenience.la
+fi
+AC_SUBST(LIBATOMIC)
+
# Used to tell GNU make to include a file without telling automake to
# include it.
go_include="-include"
@@ -179,6 +194,9 @@ is_m68k=no
mips_abi=unknown
is_ppc=no
is_ppc64=no
+is_ppc64le=no
+is_s390=no
+is_s390x=no
is_sparc=no
is_sparc64=no
is_x86_64=no
@@ -249,11 +267,30 @@ changequote([,])dnl
#ifdef _ARCH_PPC64
#error 64-bit
#endif],
-[is_ppc=yes], [is_ppc64=yes])
+[is_ppc=yes],
+ [AC_COMPILE_IFELSE([
+#if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__)
+#error 64be
+#endif],
+[is_ppc64le=yes],[is_ppc64=yes])])
if test "$is_ppc" = "yes"; then
GOARCH=ppc
- else
+ elif test "$is_ppc64" = "yes"; then
GOARCH=ppc64
+ else
+ GOARCH=ppc64le
+ fi
+ ;;
+ s390*-*-*)
+ AC_COMPILE_IFELSE([
+#if defined(__s390x__)
+#error 64-bit
+#endif],
+[is_s390=yes], [is_s390x=yes])
+ if test "$is_s390" = "yes"; then
+ GOARCH=s390
+ else
+ GOARCH=s390x
fi
;;
sparc*-*-*)
@@ -281,6 +318,9 @@ AM_CONDITIONAL(LIBGO_IS_MIPSN64, test $mips_abi = n64)
AM_CONDITIONAL(LIBGO_IS_MIPSO64, test $mips_abi = o64)
AM_CONDITIONAL(LIBGO_IS_PPC, test $is_ppc = yes)
AM_CONDITIONAL(LIBGO_IS_PPC64, test $is_ppc64 = yes)
+AM_CONDITIONAL(LIBGO_IS_PPC64LE, test $is_ppc64le = yes)
+AM_CONDITIONAL(LIBGO_IS_S390, test $is_s390 = yes)
+AM_CONDITIONAL(LIBGO_IS_S390X, test $is_s390x = 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)
@@ -291,17 +331,17 @@ GO_LIBCALL_OS_FILE=
GO_LIBCALL_OS_ARCH_FILE=
GO_SYSCALL_OS_FILE=
GO_SYSCALL_OS_ARCH_FILE=
-if test -f ${srcdir}/go/syscall/libcall_${GOOS}.go; then
- GO_LIBCALL_OS_FILE=go/syscall/libcall_${GOOS}.go
+if test -f "${srcdir}/go/syscall/libcall_${GOOS}.go"; then
+ GO_LIBCALL_OS_FILE="go/syscall/libcall_${GOOS}.go"
fi
-if test -f ${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go; then
- GO_LIBCALL_OS_ARCH_FILE=go/syscall/libcall_${GOOS}_${GOARCH}.go
+if test -f "${srcdir}/go/syscall/libcall_${GOOS}_${GOARCH}.go"; then
+ GO_LIBCALL_OS_ARCH_FILE="go/syscall/libcall_${GOOS}_${GOARCH}.go"
fi
-if test -f ${srcdir}/go/syscall/syscall_${GOOS}.go; then
- GO_SYSCALL_OS_FILE=go/syscall/syscall_${GOOS}.go
+if test -f "${srcdir}/go/syscall/syscall_${GOOS}.go"; then
+ GO_SYSCALL_OS_FILE="go/syscall/syscall_${GOOS}.go"
fi
-if test -f ${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go; then
- GO_SYSCALL_OS_ARCH_FILE=go/syscall/syscall_${GOOS}_${GOARCH}.go
+if test -f "${srcdir}/go/syscall/syscall_${GOOS}_${GOARCH}.go"; then
+ GO_SYSCALL_OS_ARCH_FILE="go/syscall/syscall_${GOOS}_${GOARCH}.go"
fi
AC_SUBST(GO_LIBCALL_OS_FILE)
AC_SUBST(GO_LIBCALL_OS_ARCH_FILE)
@@ -316,11 +356,6 @@ case "$target" in
# msghdr in <sys/socket.h>.
OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500"
;;
- *-*-solaris2.[[89]])
- # Solaris 8/9 need this so struct msghdr gets the msg_control
- # etc. fields in <sys/socket.h> (_XPG4_2).
- OSCFLAGS="$OSCFLAGS -D_XOPEN_SOURCE=500 -D_XOPEN_SOURCE_EXTENDED -D__EXTENSIONS__"
- ;;
*-*-solaris2.1[[01]])
# Solaris 10+ needs this so struct msghdr gets the msg_control
# etc. fields in <sys/socket.h> (_XPG4_2). _XOPEN_SOURCE=600 as
@@ -366,6 +401,14 @@ if test "$libgo_cv_c_linker_supports_split_stack" = yes; then
[Define if the linker support split stack adjustments])
fi
+AC_CACHE_CHECK([whether compiler is llgo],
+[libgo_cv_c_goc_is_llgo],
+[libgo_cv_c_goc_is_llgo=no
+if $GOC -dumpversion 2>/dev/null | grep llgo >/dev/null 2>&1; then
+ libgo_cv_c_goc_is_llgo=yes
+fi])
+AM_CONDITIONAL(GOC_IS_LLGO, test "$libgo_cv_c_goc_is_llgo" = yes)
+
dnl Test for the -lm library.
MATH_LIBS=
AC_CHECK_LIB([m], [sqrt], MATH_LIBS=-lm)
@@ -508,7 +551,7 @@ fi
AM_CONDITIONAL(HAVE_SYS_MMAN_H, test "$ac_cv_header_sys_mman_h" = yes)
-AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv dl_iterate_phdr)
+AC_CHECK_FUNCS(strerror_r strsignal wait4 mincore setenv unsetenv dl_iterate_phdr)
AM_CONDITIONAL(HAVE_STRERROR_R, test "$ac_cv_func_strerror_r" = yes)
AM_CONDITIONAL(HAVE_WAIT4, test "$ac_cv_func_wait4" = yes)
@@ -662,21 +705,6 @@ if test "$libgo_has_struct_exception" = "yes"; then
[Define to 1 if <math.h> defines struct exception])
fi
-dnl Check if makecontext expects the uc_stack member of ucontext to point
-dnl to the top of the stack.
-case "$target" in
- sparc*-*-solaris2.[[89]]*)
- libgo_cv_lib_makecontext_stack_top=yes
- ;;
- *)
- libgo_cv_lib_makecontext_stack_top=no
- ;;
-esac
-if test "$libgo_cv_lib_makecontext_stack_top" = "yes"; then
- AC_DEFINE(MAKECONTEXT_STACK_TOP, 1,
- [Define if makecontext expects top of stack in uc_stack.])
-fi
-
dnl See whether setcontext changes the value of TLS variables.
AC_CACHE_CHECK([whether setcontext clobbers TLS variables],
[libgo_cv_lib_setcontext_clobbers_tls],
@@ -790,14 +818,28 @@ else
[Define to the flags needed for the .section .eh_frame directive.])
fi
+AC_CACHE_CHECK([if compiler supports -Qunused-arguments],
+[libgo_cv_c_unused_arguments],
+[CFLAGS_hold=$CFLAGS
+CFLAGS="$CFLAGS -Qunused-arguments"
+AC_COMPILE_IFELSE([[int i;]],
+[libgo_cv_c_unused_arguments=yes],
+[libgo_cv_c_unused_arguments=no])
+CFLAGS=$CFLAGS_hold])
+
AC_CACHE_CHECK([if assembler supports GNU comdat group syntax],
libgo_cv_as_comdat_gnu, [
echo '.section .text,"axG",@progbits,.foo,comdat' > conftest.s
+CFLAGS_hold=$CFLAGS
+if test "$libgo_cv_c_unused_arguments" = yes; then
+ CFLAGS="$CFLAGS -Qunused-arguments"
+fi
if $CC $CFLAGS -c conftest.s > /dev/null 2>&1; then
libgo_cv_as_comdat_gnu=yes
else
libgo_cv_as_comdat_gnu=no
fi
+CFLAGS=$CFLAGS_hold
])
if test "x$libgo_cv_as_comdat_gnu" = xyes; then
AC_DEFINE(HAVE_AS_COMDAT_GAS, 1,
@@ -808,9 +850,14 @@ AC_CACHE_CHECK([assembler supports pc related relocs],
libgo_cv_as_x86_pcrel, [
libgo_cv_as_x86_pcrel=yes
echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
+CFLAGS_hold=$CFLAGS
+if test "$libgo_cv_c_unused_arguments" = yes; then
+ CFLAGS="$CFLAGS -Qunused-arguments"
+fi
if $CC $CFLAGS -c conftest.s 2>&1 | $EGREP -i 'illegal|warning' > /dev/null; then
libgo_cv_as_x86_pcrel=no
fi
+CFLAGS=$CFLAGS_hold
])
if test "x$libgo_cv_as_x86_pcrel" = xyes; then
AC_DEFINE(HAVE_AS_X86_PCREL, 1,
@@ -821,9 +868,14 @@ AC_CACHE_CHECK([assembler supports unwind section type],
libgo_cv_as_x86_64_unwind_section_type, [
libgo_cv_as_x86_64_unwind_section_type=yes
echo '.section .eh_frame,"a",@unwind' > conftest.s
+CFLAGS_hold=$CFLAGS
+if test "$libgo_cv_c_unused_arguments" = yes; then
+ CFLAGS="$CFLAGS -Qunused-arguments"
+fi
if $CC $CFLAGS -c conftest.s 2>&1 | grep -i warning > /dev/null; then
libgo_cv_as_x86_64_unwind_section_type=no
fi
+CFLAGS=$CFLAGS_hold
])
if test "x$libgo_cv_as_x86_64_unwind_section_type" = xyes; then
AC_DEFINE(HAVE_AS_X86_64_UNWIND_SECTION_TYPE, 1,
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