re PR bootstrap/82856 (--enable-maintainter-mode broken by incompatiblity of gcc's required automake and modern Perl)

	PR bootstrap/82856

    libgo: update to autoconf 2.69 and automake 1.15.1
    
    Initial patch from Joseph Myers.
    
    Reviewed-on: https://go-review.googlesource.com/c/146417

From-SVN: r265701

1 files changed, 41 insertions, 33 deletions

diff --git a/libgo/configure.ac b/libgo/configure.ac
index e2193a5..180b4f4 100644
--- a/libgo/configure.ac
+++ b/libgo/configure.ac
@@ -6,7 +6,6 @@
 
 # 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)
@@ -19,7 +18,7 @@ AM_ENABLE_MULTILIB(, ..)
 AC_CANONICAL_SYSTEM
 target_alias=${target_alias-$host_alias}
 
-AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist -Wall -Wno-portability])
+AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dist subdir-objects -Wall -Wno-portability -Wno-override])
 AH_TEMPLATE(PACKAGE, [Name of package])
 AH_TEMPLATE(VERSION, [Version number of package])
 
@@ -248,15 +247,17 @@ case ${host} in
 changequote(,)dnl
   i[34567]86-*-* | x86_64-*-*)
 changequote([,])dnl
-    AC_COMPILE_IFELSE([
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #ifdef __x86_64__
 #error 64-bit
-#endif],
+#endif
+])],
 	[GOARCH=386],
-	AC_COMPILE_IFELSE([
+	AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #ifdef __ILP32__
 #error x32
-#endif],
+#endif
+])],
 	[GOARCH=amd64],
 	[GOARCH=amd64p32]))
     ;;
@@ -267,20 +268,23 @@ changequote([,])dnl
     GOARCH=m68k
     ;;
   mips*-*-*)
-    AC_COMPILE_IFELSE([
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #if _MIPS_SIM != _ABIO32
 #error not o32
-#endif],
+#endif
+])],
 [mips_abi="o32"],
-	[AC_COMPILE_IFELSE([
+	[AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #if _MIPS_SIM != _ABIN32
 #error not n32
-#endif],
+#endif
+])],
 [mips_abi="n32"],
-	[AC_COMPILE_IFELSE([
+	[AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #if _MIPS_SIM != _ABI64
 #error not n64
-#endif],
+#endif
+])],
 [mips_abi="n64"],
 	[AC_MSG_ERROR([unknown MIPS ABI])
 [mips_abi="n32"]])])])
@@ -299,16 +303,18 @@ changequote([,])dnl
     GOARCH=nios2
     ;;
   rs6000*-*-* | powerpc*-*-*)
-    AC_COMPILE_IFELSE([
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #ifdef _ARCH_PPC64
 #error 64-bit
-#endif],
+#endif
+])],
 [GOARCH=ppc],
     [
-AC_COMPILE_IFELSE([
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #if defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN__)
 #error 64be
-#endif],
+#endif
+])],
 [GOARCH=ppc64le],
 [GOARCH=ppc64])])
     ;;
@@ -316,10 +322,11 @@ AC_COMPILE_IFELSE([
     GOARCH=riscv64
     ;;
   s390*-*-*)
-    AC_COMPILE_IFELSE([
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #if defined(__s390x__)
 #error 64-bit
-#endif],
+#endif
+])],
 [GOARCH=s390],
 [GOARCH=s390x])
     ;;
@@ -330,10 +337,11 @@ AC_COMPILE_IFELSE([
     GOARCH=sh
     ;;
   sparc*-*-*)
-    AC_COMPILE_IFELSE([
+    AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 #if defined(__sparcv9) || defined(__arch64__)
 #error 64-bit
-#endif],
+#endif
+])],
 [GOARCH=sparc],
 [GOARCH=sparc64])
     ;;
@@ -389,7 +397,7 @@ AC_CACHE_CHECK([whether -fsplit-stack is supported],
 [libgo_cv_c_split_stack_supported],
 [CFLAGS_hold=$CFLAGS
 CFLAGS="$CFLAGS -fsplit-stack"
-AC_COMPILE_IFELSE([[int i;]],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
 [libgo_cv_c_split_stack_supported=yes],
 [libgo_cv_c_split_stack_supported=no])
 CFLAGS=$CFLAGS_hold])
@@ -505,7 +513,7 @@ AC_CACHE_CHECK([whether -pthread is supported],
 [libgo_cv_lib_pthread],
 [CFLAGS_hold=$CFLAGS
 CFLAGS="$CFLAGS -pthread -L../libatomic/.libs"
-AC_COMPILE_IFELSE([[int i;]],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
 [libgo_cv_lib_pthread=yes],
 [libgo_cv_lib_pthread=no])
 CFLAGS=$CFLAGS_hold])
@@ -572,11 +580,11 @@ LIBS="$LIBS_hold"
 
 AC_CACHE_CHECK([for __sync_bool_compare_and_swap_4],
 [libgo_cv_func___sync_bool_compare_and_swap_4],
-[AC_LINK_IFELSE([
+[AC_LINK_IFELSE([AC_LANG_SOURCE([
 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
@@ -586,11 +594,11 @@ fi
 
 AC_CACHE_CHECK([for __sync_bool_compare_and_swap_8],
 [libgo_cv_func___sync_bool_compare_and_swap_8],
-[AC_LINK_IFELSE([
+[AC_LINK_IFELSE([AC_LANG_SOURCE([
 typedef unsigned int uint64  __attribute__ ((mode (DI)));
 uint64 i;
 int main() { return __sync_bool_compare_and_swap (&i, 0, 1); }
-],
+])],
 [libgo_cv_func___sync_bool_compare_and_swap_8=yes],
 [libgo_cv_func___sync_bool_compare_and_swap_8=no])])
 if test "$libgo_cv_func___sync_bool_compare_and_swap_8" = "yes"; then
@@ -600,11 +608,11 @@ fi
 
 AC_CACHE_CHECK([for __sync_fetch_and_add_4],
 [libgo_cv_func___sync_fetch_and_add_4],
-[AC_LINK_IFELSE([
+[AC_LINK_IFELSE([AC_LANG_SOURCE([
 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
@@ -614,11 +622,11 @@ fi
 
 AC_CACHE_CHECK([for __sync_add_and_fetch_8],
 [libgo_cv_func___sync_add_and_fetch_8],
-[AC_LINK_IFELSE([
+[AC_LINK_IFELSE([AC_LANG_SOURCE([
 typedef unsigned int uint64  __attribute__ ((mode (DI)));
 uint64 i;
 int main() { return __sync_add_and_fetch (&i, 1); }
-],
+])],
 [libgo_cv_func___sync_add_and_fetch_8=yes],
 [libgo_cv_func___sync_add_and_fetch_8=no])])
 if test "$libgo_cv_func___sync_add_and_fetch_8" = "yes"; then
@@ -632,7 +640,7 @@ AC_CACHE_CHECK([whether compiler supports -minline-all-stringops],
 [libgo_cv_c_stringops],
 [CFLAGS_hold=$CFLAGS
 CFLAGS="$CFLAGS -minline-all-stringops"
-AC_COMPILE_IFELSE([int i;],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
 [libgo_cv_c_stringops=yes],
 [libgo_cv_c_stringops=no])
 CFLAGS=$CFLAGS_hold])
@@ -648,7 +656,7 @@ AC_CACHE_CHECK([whether compiler supports -mfancy-math-387],
 [libgo_cv_c_fancymath],
 [CFLAGS_hold=$CFLAGS
 CFLAGS="$CFLAGS -mfancy-math-387"
-AC_COMPILE_IFELSE([int i;],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
 [libgo_cv_c_fancymath=yes],
 [libgo_cv_c_fancymath=no])
 CFLAGS=$CFLAGS_hold])
@@ -819,7 +827,7 @@ AC_CACHE_CHECK([if compiler supports -Qunused-arguments],
 [libgo_cv_c_unused_arguments],
 [CFLAGS_hold=$CFLAGS
 CFLAGS="$CFLAGS -Qunused-arguments"
-AC_COMPILE_IFELSE([[int i;]],
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([int i;])],
 [libgo_cv_c_unused_arguments=yes],
 [libgo_cv_c_unused_arguments=no])
 CFLAGS=$CFLAGS_hold])