From b3676d82d7039ba759abd39223d75cc81388b468 Mon Sep 17 00:00:00 2001 From: Eric Botcazou Date: Mon, 22 Oct 2012 07:32:04 +0000 Subject: PR bootstrap/54820 * Makefile.tpl (STAGE1_FLAGS_TO_PASS): New variable. (all-[+prefix+][+module+]): Pass stage1_args to sub-makes. (all-stage[+id+]-[+prefix+][+module+]): Likewise, if prev is false. (clean-stage[+id+]-[+prefix+][+module+]): Likewise, if prev is false. (host_modules): Set stage1_args to STAGE1_FLAGS_TO_PASS. * Makefile.in: Regenerate. * configure.ac (have_static_libs): New variable and associated check. (stage1-ldflags): Move to after stage1_libs and set to -static-libstdc++ -static-libgcc if stage1_libs is empty and have_static_libs is yes. * configure: Regenerate. --- configure.ac | 44 +++++++++++++++++++++++++++++++++----------- 1 file changed, 33 insertions(+), 11 deletions(-) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index f0d86d9..958eadd 100644 --- a/configure.ac +++ b/configure.ac @@ -1182,6 +1182,22 @@ if test -z "$LD"; then fi fi +# Check whether -static-libstdc++ -static-libgcc is supported. +have_static_libs=no +if test "$GCC" = yes; then + saved_LDFLAGS="$LDFLAGS" + + LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc" + AC_MSG_CHECKING([whether g++ accepts -static-libstdc++ -static-libgcc]) + AC_LANG_PUSH(C++) + AC_LINK_IFELSE([int main() {}], + [AC_MSG_RESULT([yes]); have_static_libs=yes], + [AC_MSG_RESULT([no])]) + AC_LANG_POP(C++) + + LDFLAGS="$saved_LDFLAGS" +fi + ACX_PROG_GNAT ACX_PROG_CMP_IGNORE_INITIAL @@ -1478,17 +1494,6 @@ case $with_host_libstdcxx in ;; esac -# Linker flags to use for stage1 or when not boostrapping. -AC_ARG_WITH(stage1-ldflags, -[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], -[if test "$withval" = "no" -o "$withval" = "yes"; then - stage1_ldflags= - else - stage1_ldflags=$withval - fi], -[stage1_ldflags=]) -AC_SUBST(stage1_ldflags) - # Libraries to use for stage1 or when not bootstrapping. AC_ARG_WITH(stage1-libs, [AS_HELP_STRING([--with-stage1-libs=LIBS], [libraries for stage1])], @@ -1500,6 +1505,23 @@ AC_ARG_WITH(stage1-libs, [stage1_libs=$with_host_libstdcxx]) AC_SUBST(stage1_libs) +# Linker flags to use for stage1 or when not bootstrapping. +AC_ARG_WITH(stage1-ldflags, +[AS_HELP_STRING([--with-stage1-ldflags=FLAGS], [linker flags for stage1])], +[if test "$withval" = "no" -o "$withval" = "yes"; then + stage1_ldflags= + else + stage1_ldflags=$withval + fi], +[stage1_ldflags= + # In stage 1, default to linking libstdc++ and libgcc statically with GCC + # if supported. But if the user explicitly specified the libraries to use, + # trust that they are doing what they want. + if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then + stage1_ldflags="-static-libstdc++ -static-libgcc" + fi]) +AC_SUBST(stage1_ldflags) + # Libraries to use for stage2 and later builds. This defaults to the # argument passed to --with-host-libstdcxx. AC_ARG_WITH(boot-libs, -- cgit v1.1