crossconfig.m4: Since we know that all TPF builds are cross- builds and cannot run...
* 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). From-SVN: r187062
This commit is contained in:
DJ Delorie
DJ Delorie
parent
43f7c4322c
commit
40f93bb5be
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@ -1,3 +1,10 @@
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2012-05-02 DJ Delorie <dj@redhat.com>
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* crossconfig.m4: Since we know that all TPF builds are cross-
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builds and cannot run configuration-time link tests, do not
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allow it; just go with known supported linker options.
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* configure: Regenerate (called as GLIBCXX_CROSSCONFIG).
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2012-05-02 Benjamin Kosnik <bkoz@redhat.com>
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* include/bits/hashtable_policy.h: Correct namepace nesting for
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@ -63763,145 +63763,7 @@ $as_echo "$ac_ld_relro" >&6; }
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;;
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*-tpf)
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SECTION_FLAGS='-ffunction-sections -fdata-sections'
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# If we're not using GNU ld, then there's no point in even trying these
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# tests. Check for that first. We should have already tested for gld
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# by now (in libtool), but require it now just to be safe...
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test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
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test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
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# The name set by libtool depends on the version of libtool. Shame on us
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# for depending on an impl detail, but c'est la vie. Older versions used
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# ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
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# top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
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# makes sense). We'll test with_gnu_ld everywhere else, so if that isn't
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# set (hence we're using an older libtool), then set it.
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if test x${with_gnu_ld+set} != xset; then
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if test x${ac_cv_prog_gnu_ld+set} != xset; then
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# We got through "ac_require(ac_prog_ld)" and still not set? Huh?
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with_gnu_ld=no
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else
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with_gnu_ld=$ac_cv_prog_gnu_ld
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fi
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fi
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# Start by getting the version number. I think the libtool test already
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# does some of this, but throws away the result.
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glibcxx_ld_is_gold=no
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if test x"$with_gnu_ld" = x"yes"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld version" >&5
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$as_echo_n "checking for ld version... " >&6; }
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if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
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glibcxx_ld_is_gold=yes
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fi
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ldver=`$LD --version 2>/dev/null |
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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'`
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glibcxx_gnu_ld_version=`echo $ldver | \
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$AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $glibcxx_gnu_ld_version" >&5
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$as_echo "$glibcxx_gnu_ld_version" >&6; }
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fi
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# Set --gc-sections.
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glibcxx_have_gc_sections=no
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if test "$glibcxx_ld_is_gold" = "yes"; then
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if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
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glibcxx_have_gc_sections=yes
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fi
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else
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glibcxx_gcsections_min_ld=21602
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if test x"$with_gnu_ld" = x"yes" &&
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test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
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glibcxx_have_gc_sections=yes
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fi
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fi
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if test "$glibcxx_have_gc_sections" = "yes"; then
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# Sufficiently young GNU ld it is! Joy and bunny rabbits!
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# NB: This flag only works reliably after 2.16.1. Configure tests
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# for this are difficult, so hard wire a value that should work.
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ac_test_CFLAGS="${CFLAGS+set}"
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ac_save_CFLAGS="$CFLAGS"
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CFLAGS='-Wl,--gc-sections'
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# Check for -Wl,--gc-sections
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,--gc-sections" >&5
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$as_echo_n "checking for ld that supports -Wl,--gc-sections... " >&6; }
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if test x$gcc_no_link = xyes; then
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as_fn_error "Link tests are not allowed after GCC_NO_EXECUTABLES." "$LINENO" 5
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fi
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int one(void) { return 1; }
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int two(void) { return 2; }
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int
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main ()
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{
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two();
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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ac_gcsections=yes
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else
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ac_gcsections=no
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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if test "$ac_gcsections" = "yes"; then
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rm -f conftest.c
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touch conftest.c
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if $CC -c conftest.c; then
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if $LD --gc-sections -o conftest conftest.o 2>&1 | \
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grep "Warning: gc-sections option ignored" > /dev/null; then
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ac_gcsections=no
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fi
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fi
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rm -f conftest.c conftest.o conftest
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fi
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if test "$ac_gcsections" = "yes"; then
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SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_gcsections" >&5
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$as_echo "$ac_gcsections" >&6; }
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if test "$ac_test_CFLAGS" = set; then
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CFLAGS="$ac_save_CFLAGS"
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else
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# this is the suspicious part
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CFLAGS=''
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fi
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fi
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# Set -z,relro.
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# Note this is only for shared objects.
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ac_ld_relro=no
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if test x"$with_gnu_ld" = x"yes"; then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld that supports -Wl,-z,relro" >&5
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$as_echo_n "checking for ld that supports -Wl,-z,relro... " >&6; }
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cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
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if test -n "$cxx_z_relo"; then
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OPT_LDFLAGS="-Wl,-z,relro"
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ac_ld_relro=yes
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ld_relro" >&5
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$as_echo "$ac_ld_relro" >&6; }
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fi
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# Set linker optimization flags.
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if test x"$with_gnu_ld" = x"yes"; then
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OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
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fi
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SECTION_LDFLAGS='-Wl,--gc-sections $SECTION_LDFLAGS'
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$as_echo "#define HAVE_FINITE 1" >>confdefs.h
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@ -222,8 +222,8 @@ case "${host}" in
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;;
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*-tpf)
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SECTION_FLAGS='-ffunction-sections -fdata-sections'
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SECTION_LDFLAGS='-Wl,--gc-sections $SECTION_LDFLAGS'
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AC_SUBST(SECTION_FLAGS)
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GLIBCXX_CHECK_LINKER_FEATURES
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AC_DEFINE(HAVE_FINITE)
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AC_DEFINE(HAVE_FINITEF)
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AC_DEFINE(HAVE_FREXPF)
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