diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index d0948f9bbf2..f16fb9972af 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,10 @@ +2012-05-02 DJ Delorie + + * crossconfig.m4: Since we know that all TPF builds are cross- + builds and cannot run configuration-time link tests, do not + allow it; just go with known supported linker options. + * configure: Regenerate (called as GLIBCXX_CROSSCONFIG). + 2012-05-02 Benjamin Kosnik * include/bits/hashtable_policy.h: Correct namepace nesting for diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure index 468b4131471..e0af9c8de6c 100755 --- a/libstdc++-v3/configure +++ b/libstdc++-v3/configure @@ -63763,145 +63763,7 @@ $as_echo "$ac_ld_relro" >&6; } ;; *-tpf) SECTION_FLAGS='-ffunction-sections -fdata-sections' - - - # If we're not using GNU ld, then there's no point in even trying these - # tests. Check for that first. We should have already tested for gld - # by now (in libtool), but require it now just to be safe... - test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS='' - test -z "$OPT_LDFLAGS" && OPT_LDFLAGS='' - - - - # The name set by libtool depends on the version of libtool. Shame on us - # for depending on an impl detail, but c'est la vie. Older versions used - # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on - # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually - # makes sense). We'll test with_gnu_ld everywhere else, so if that isn't - # set (hence we're using an older libtool), then set it. - if test x${with_gnu_ld+set} != xset; then - if test x${ac_cv_prog_gnu_ld+set} != xset; then - # We got through "ac_require(ac_prog_ld)" and still not set? Huh? - with_gnu_ld=no - else - with_gnu_ld=$ac_cv_prog_gnu_ld - fi - fi - - # Start by getting the version number. I think the libtool test already - # does some of this, but throws away the result. - glibcxx_ld_is_gold=no - if test x"$with_gnu_ld" = x"yes"; then - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5 -$as_echo_n "checking for ld version... " >&6; } - - if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then - glibcxx_ld_is_gold=yes - fi - ldver=`$LD --version 2>/dev/null | - sed -e 's/GNU gold /GNU ld /;s/GNU ld version /GNU ld /;s/GNU ld ([^)]*) /GNU ld /;s/GNU ld \([0-9.][0-9.]*\).*/\1/; q'` - - glibcxx_gnu_ld_version=`echo $ldver | \ - $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'` - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5 -$as_echo "$glibcxx_gnu_ld_version" >&6; } - fi - - # Set --gc-sections. - glibcxx_have_gc_sections=no - if test "$glibcxx_ld_is_gold" = "yes"; then - if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then - glibcxx_have_gc_sections=yes - fi - else - glibcxx_gcsections_min_ld=21602 - if test x"$with_gnu_ld" = x"yes" && - test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then - glibcxx_have_gc_sections=yes - fi - fi - if test "$glibcxx_have_gc_sections" = "yes"; then - # Sufficiently young GNU ld it is! Joy and bunny rabbits! - # NB: This flag only works reliably after 2.16.1. Configure tests - # for this are difficult, so hard wire a value that should work. - - ac_test_CFLAGS="${CFLAGS+set}" - ac_save_CFLAGS="$CFLAGS" - CFLAGS='-Wl,--gc-sections' - - # Check for -Wl,--gc-sections - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5 -$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; } - if test x$gcc_no_link = xyes; then - as_fn_error "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5 -fi -cat confdefs.h - <<_ACEOF >conftest.$ac_ext -/* end confdefs.h. */ - int one(void) { return 1; } - int two(void) { return 2; } - -int -main () -{ - two(); - ; - return 0; -} -_ACEOF -if ac_fn_c_try_link "$LINENO"; then : - ac_gcsections=yes -else - ac_gcsections=no -fi -rm -f core conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext - if test "$ac_gcsections" = "yes"; then - rm -f conftest.c - touch conftest.c - if $CC -c conftest.c; then - if $LD --gc-sections -o conftest conftest.o 2>&1 | \ - grep "Warning: gc-sections option ignored" > /dev/null; then - ac_gcsections=no - fi - fi - rm -f conftest.c conftest.o conftest - fi - if test "$ac_gcsections" = "yes"; then - SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS" - fi - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5 -$as_echo "$ac_gcsections" >&6; } - - if test "$ac_test_CFLAGS" = set; then - CFLAGS="$ac_save_CFLAGS" - else - # this is the suspicious part - CFLAGS='' - fi - fi - - # Set -z,relro. - # Note this is only for shared objects. - ac_ld_relro=no - if test x"$with_gnu_ld" = x"yes"; then - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5 -$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; } - cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"` - if test -n "$cxx_z_relo"; then - OPT_LDFLAGS="-Wl,-z,relro" - ac_ld_relro=yes - fi - { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5 -$as_echo "$ac_ld_relro" >&6; } - fi - - # Set linker optimization flags. - if test x"$with_gnu_ld" = x"yes"; then - OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS" - fi - - - + SECTION_LDFLAGS='-Wl,--gc-sections $SECTION_LDFLAGS' $as_echo "#define HAVE_FINITE 1" >>confdefs.h diff --git a/libstdc++-v3/crossconfig.m4 b/libstdc++-v3/crossconfig.m4 index e208fbf13a0..943ea676ea2 100644 --- a/libstdc++-v3/crossconfig.m4 +++ b/libstdc++-v3/crossconfig.m4 @@ -222,8 +222,8 @@ case "${host}" in ;; *-tpf) SECTION_FLAGS='-ffunction-sections -fdata-sections' + SECTION_LDFLAGS='-Wl,--gc-sections $SECTION_LDFLAGS' AC_SUBST(SECTION_FLAGS) - GLIBCXX_CHECK_LINKER_FEATURES AC_DEFINE(HAVE_FINITE) AC_DEFINE(HAVE_FINITEF) AC_DEFINE(HAVE_FREXPF)