diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/configure b/configure index f033eef082..9fd2eaa1bc 100755 --- a/configure +++ b/configure @@ -4061,6 +4061,31 @@ fi { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gcc_indirect_function" >&5 $as_echo "$libc_cv_gcc_indirect_function" >&6; } +# Check if CC supports attribute retain as it is used in attribute_used_retain macro. +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU attribute retain support" >&5 +$as_echo_n "checking for GNU attribute retain support... " >&6; } +if ${libc_cv_gnu_retain+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.c <<EOF +static int var __attribute__ ((used, retain, section ("__libc_atexit"))); +EOF +libc_cv_gnu_retain=no +if ${CC-cc} -Werror -c conftest.c -o /dev/null 1>&5 \ + 2>&5 ; then + libc_cv_gnu_retain=yes +fi +rm -f conftest* +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_gnu_retain" >&5 +$as_echo "$libc_cv_gnu_retain" >&6; } +if test $libc_cv_gnu_retain = yes; then + $as_echo "#define HAVE_GNU_RETAIN 1" >>confdefs.h + +fi +config_vars="$config_vars +have-gnu-retain = $libc_cv_gnu_retain" + # Check if gcc warns about alias for function with incompatible types. { $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler warns about alias for function with incompatible types" >&5 $as_echo_n "checking if compiler warns about alias for function with incompatible types... " >&6; } @@ -5884,6 +5909,40 @@ fi $as_echo "$libc_linker_feature" >&6; } +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z start-stop-gc" >&5 +$as_echo_n "checking for linker that supports -z start-stop-gc... " >&6; } +libc_linker_feature=no +if test x"$gnu_ld" = x"yes"; then + libc_linker_check=`$LD -v --help 2>/dev/null | grep "\-z start-stop-gc"` + if test -n "$libc_linker_check"; then + cat > conftest.c <<EOF +int _start (void) { return 42; } +EOF + if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp + -Wl,-z,start-stop-gc -nostdlib -nostartfiles + -fPIC -shared -o conftest.so conftest.c + 1>&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } + then + libc_linker_feature=yes + fi + rm -f conftest* + fi +fi +if test $libc_linker_feature = yes; then + libc_cv_z_start_stop_gc=yes +else + libc_cv_z_start_stop_gc=no +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5 +$as_echo "$libc_linker_feature" >&6; } +config_vars="$config_vars +have-z-start-stop-gc = $libc_cv_z_start_stop_gc" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-dynamic-linker" >&5 $as_echo_n "checking for linker that supports --no-dynamic-linker... " >&6; } libc_linker_feature=no |