diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/configure b/configure index fc023d0c70..c2b669dc48 100755 --- a/configure +++ b/configure @@ -613,6 +613,7 @@ libc_cv_z_combreloc ASFLAGS_config libc_cv_Bgroup libc_cv_cc_with_libunwind +libc_cv_protected_data BISON INSTALL_INFO PERL @@ -5751,6 +5752,45 @@ $as_echo "$libc_cv_visibility_attribute" >&6; } fi if test $libc_cv_visibility_attribute = yes; then + { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker support for protected data symbol" >&5 +$as_echo_n "checking linker support for protected data symbol... " >&6; } +if ${libc_cv_protected_data+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat > conftest.c <<EOF + int bar __attribute__ ((visibility ("protected"))) = 1; +EOF + libc_cv_protected_data=no + if { ac_try='${CC-cc} -nostdlib -nostartfiles -fPIC -shared conftest.c -o conftest.so' + { { 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 $ac_status = 0; }; }; then + cat > conftest.c <<EOF + extern int bar; + int main (void) { return bar; } +EOF + if { ac_try='${CC-cc} -nostdlib -nostartfiles conftest.c -o conftest conftest.so' + { { 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_cv_protected_data=yes + fi + fi + rm -f conftest.* + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_protected_data" >&5 +$as_echo "$libc_cv_protected_data" >&6; } +else + libc_cv_protected_data=no +fi + + +if test $libc_cv_visibility_attribute = yes; then { $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken __attribute__((visibility()))" >&5 $as_echo_n "checking for broken __attribute__((visibility()))... " >&6; } if ${libc_cv_broken_visibility_attribute+:} false; then : |