| 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 |
