X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=libgo%2Fconfigure.ac;h=0baff412de1019a85ea08f0b3e8df8f4c92e81d9;hb=2e58ed3087522ab051c23e0c45fb008a6fbef787;hp=8f55cac797ca9245778fee8a967beb98a57e0341;hpb=d3b4df0b173c3ad5f1e8f5d9f6a5df3518322129;p=gcc.git

diff --git a/libgo/configure.ac b/libgo/configure.ac
index 8f55cac797c..0baff412de1 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(, ..)
@@ -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)
@@ -361,6 +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)
@@ -503,7 +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)
 
@@ -770,14 +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$libgo_cv_as_comdat_gnu" = xyes; then
   AC_DEFINE(HAVE_AS_COMDAT_GAS, 1,
@@ -788,9 +850,14 @@ AC_CACHE_CHECK([assembler supports pc related relocs],
 libgo_cv_as_x86_pcrel, [
 libgo_cv_as_x86_pcrel=yes
 echo '.text; foo: nop; .data; .long foo-.; .text' > conftest.s
+CFLAGS_hold=$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$libgo_cv_as_x86_pcrel" = xyes; then
   AC_DEFINE(HAVE_AS_X86_PCREL, 1,
@@ -801,9 +868,14 @@ AC_CACHE_CHECK([assembler supports unwind section type],
 libgo_cv_as_x86_64_unwind_section_type, [
 libgo_cv_as_x86_64_unwind_section_type=yes
 echo '.section .eh_frame,"a",@unwind' > conftest.s
+CFLAGS_hold=$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,