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-rwxr-xr-xconfigure40
1 files changed, 40 insertions, 0 deletions
diff --git a/configure b/configure
index 71cc6bb..79864b7 100755
--- a/configure
+++ b/configure
@@ -634,6 +634,7 @@ libc_cv_z_combreloc
ASFLAGS_config
libc_cv_Bgroup
libc_cv_cc_with_libunwind
+libc_cv_protected_data
BISON
INSTALL_INFO
PERL
@@ -5734,6 +5735,45 @@ $as_echo "$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 :