diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 36 |
1 files changed, 36 insertions, 0 deletions
@@ -9246,6 +9246,42 @@ printf "%s\n" "$libc_linker_feature" >&6; } config_vars="$config_vars have-ld-gcs = $libc_cv_ld_gcs" + +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker that supports --undefined-version" >&5 +printf %s "checking for linker that supports --undefined-version... " >&6; } +libc_linker_feature=no +cat > conftest.c <<EOF +int _start (void) { return 42; } +EOF +if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp + -Wl,--undefined-version -nostdlib -nostartfiles + -fPIC -shared -o conftest.so conftest.c + 1>&5' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } +then + if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,--undefined-version -nostdlib \ + -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \ + | grep "warning: --undefined-version ignored" > /dev/null 2>&1; then + true + else + libc_linker_feature=yes + fi +fi +rm -f conftest* +if test $libc_linker_feature = yes; then + libc_cv_ld_undefined_version=-Wl,--undefined-version +else + libc_cv_ld_undefined_version= +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5 +printf "%s\n" "$libc_linker_feature" >&6; } +config_vars="$config_vars +have-undefined-version = $libc_cv_ld_undefined_version" + { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if we can build programs as PIE" >&5 printf %s "checking if we can build programs as PIE... " >&6; } cat confdefs.h - <<_ACEOF >conftest.$ac_ext |