# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602
# os_include_dir="os/solaris/solaris2.6"
# ;;
*-solaris2.7 | *-solaris2.8 | *-solaris2.9 | *-solaris2.10)
+
+ # If we're not using GNU ld, then there's no point in even trying these
+ # tests. Check for that first. We should have already tested for gld
+ # by now (in libtool), but require it now just to be safe...
+ test -z "$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.
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
+echo $ECHO_N "checking for ld version... $ECHO_C" >&6
+
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
+
+ # Set --gc-sections.
+ glibcxx_gcsections_min_ld=21602
+ if test x"$with_gnu_ld" = x"yes" &&
+ test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
+
+ # Sufficiently young GNU ld it is! Joy and bunny rabbits!
+ # NB: This flag only works reliably after 2.16.1. Configure tests
+ # for this are difficult, so hard wire a value that should work.
+
+ # All these tests are for C++, but run with the "C" compiler driver.
+ # Need to do this so that g++ won't try to link in libstdc++/libsupc++.
+ ac_test_CFLAGS="${CFLAGS+set}"
+ ac_save_CFLAGS="$CFLAGS"
+ CFLAGS='-x c++ -Wl,--gc-sections'
+
+ # Check for -Wl,--gc-sections
+ echo "$as_me:$LINENO: checking for ld that supports -Wl,--gc-sections" >&5
+echo $ECHO_N "checking for ld that supports -Wl,--gc-sections... $ECHO_C" >&6
+ if test x$gcc_no_link = xyes; then
+ { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
+echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+ int one(void) { return 1; }
+ int two(void) { return 2; }
+
+int
+main ()
+{
+ two();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_gcsections=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_gcsections=no
+fi
+rm -f conftest.err conftest.$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 $SECTION_LDFLAGS"
+ fi
+ echo "$as_me:$LINENO: result: $ac_gcsections" >&5
+echo "${ECHO_T}$ac_gcsections" >&6
+
+ if test "$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
+ echo "$as_me:$LINENO: checking for ld that supports -Wl,-z,relro" >&5
+echo $ECHO_N "checking for ld that supports -Wl,-z,relro... $ECHO_C" >&6
+ cxx_z_relo=`$LD -v --help 2>/dev/null | grep "z relro"`
+ if test -n "$cxx_z_relo"; then
+ OPT_LDFLAGS="-Wl,-z,relro"
+ ac_ld_relro=yes
+ fi
+ echo "$as_me:$LINENO: result: $ac_ld_relro" >&5
+echo "${ECHO_T}$ac_ld_relro" >&6
+ fi
+
+ # Set linker optimization flags.
+ if test x"$with_gnu_ld" = x"yes"; then
+ OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
+ fi
+
+
+
+
cat >>confdefs.h <<\_ACEOF
#define HAVE_GETPAGESIZE 1
_ACEOF
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
- echo "$as_me:$LINENO: checking for ld version" >&5
+ if test x"$with_gnu_ld" = x"yes"; then
+ echo "$as_me:$LINENO: checking for ld version" >&5
echo $ECHO_N "checking for ld version... $ECHO_C" >&6
- ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
+ ldver=`$LD --version 2>/dev/null | head -1 | \
+ sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
- glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
- echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
+ glibcxx_gnu_ld_version=`echo $ldver | \
+ $AWK -F. '{ if (NF<3) $3=0; print ($1*100+$2)*100+$3 }'`
+ echo "$as_me:$LINENO: result: $glibcxx_gnu_ld_version" >&5
echo "${ECHO_T}$glibcxx_gnu_ld_version" >&6
+ fi
# Set --gc-sections.
glibcxx_gcsections_min_ld=21602