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|
https://bugs.gentoo.org/661508
--- a/configure
+++ b/configure
@@ -638,6 +638,8 @@
IS_CROSS_COMPILE_FALSE
IS_CROSS_COMPILE_TRUE
LIBOBJS
+HAVE_VISIBILITY
+CFLAG_VISIBILITY
OTOOL64
OTOOL
LIPO
@@ -12512,7 +12519,92 @@
# Only expand once:
-gl_VISIBILITY
+
+
+ CFLAG_VISIBILITY=
+ HAVE_VISIBILITY=0
+ if test -n "$GCC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the -Werror option is usable" >&5
+$as_echo_n "checking whether the -Werror option is usable... " >&6; }
+ if ${gl_cv_cc_vis_werror+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ gl_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Werror"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ gl_cv_cc_vis_werror=yes
+else
+ gl_cv_cc_vis_werror=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CFLAGS="$gl_save_CFLAGS"
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_vis_werror" >&5
+$as_echo "$gl_cv_cc_vis_werror" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for simple visibility declarations" >&5
+$as_echo_n "checking for simple visibility declarations... " >&6; }
+ if ${gl_cv_cc_visibility+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ gl_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -fvisibility=hidden"
+ if test $gl_cv_cc_vis_werror = yes; then
+ CFLAGS="$CFLAGS -Werror"
+ fi
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+extern __attribute__((__visibility__("hidden"))) int hiddenvar;
+ extern __attribute__((__visibility__("default"))) int exportedvar;
+ extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
+ extern __attribute__((__visibility__("default"))) int exportedfunc (void);
+ void dummyfunc (void) {}
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ gl_cv_cc_visibility=yes
+else
+ gl_cv_cc_visibility=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CFLAGS="$gl_save_CFLAGS"
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_cc_visibility" >&5
+$as_echo "$gl_cv_cc_visibility" >&6; }
+ if test $gl_cv_cc_visibility = yes; then
+ CFLAG_VISIBILITY="-fvisibility=hidden"
+ HAVE_VISIBILITY=1
+ fi
+ fi
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_VISIBILITY $HAVE_VISIBILITY
+_ACEOF
+
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
if ${ac_cv_header_stdc+:} false; then :
@@ -16194,7 +16286,7 @@
DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
test -z "$DEPDIR" && continue
am__include=`sed -n 's/^am__include = //p' < "$mf"`
- test -z "am__include" && continue
+ test -z "$am__include" && continue
am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
# Find all dependency output files, they are included files with
# $(DEPDIR) in their names. We invoke sed twice because it is the
|
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