Move options directory to csl.

[awesomized/libmemcached] / m4 / pandora_visibility.m4

diff --git a/m4/pandora_visibility.m4 b/m4/pandora_visibility.m4
index cb68644ddf9b8c63a6dd08774680bc6db186f009..f0baa60111f87f33d0a3163501fc87cc3fc42a02 100644 (file)
--- a/m4/pandora_visibility.m4
+++ b/m4/pandora_visibility.m4
@@ -20,38 +20,56 @@ dnl "really only recommended for legacy code".
 dnl Set the variable CFLAG_VISIBILITY.
 dnl Defines and sets the variable HAVE_VISIBILITY.
 
-AC_DEFUN([PANDORA_VISIBILITY],
+AC_DEFUN([PANDORA_CHECK_VISIBILITY],
 [
   AC_REQUIRE([AC_PROG_CC])
-  AC_REQUIRE([PANDORA_PLATFORM])
   CFLAG_VISIBILITY=
   HAVE_VISIBILITY=0
   AS_IF([test -n "$GCC"],[
     AC_MSG_CHECKING([for simple visibility declarations])
     AC_CACHE_VAL([gl_cv_cc_visibility], [
       gl_save_CFLAGS="$CFLAGS"
-      CFLAGS="$CFLAGS -fvisibility=hidden"
+      CFLAGS="$CFLAGS -fvisibility=hidden -Werror"
       AC_TRY_COMPILE(
         [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);],
-        [],
-        [gl_cv_cc_visibility=yes],
-        [gl_cv_cc_visibility=no])
+        [],[
+        case "$host_os" in
+          *darwin*)
+            gl_cv_cc_visibility=no
+            ;;
+          *)
+            gl_cv_cc_visibility=yes
+            ;;
+        esac
+        ],[gl_cv_cc_visibility=no])
       CFLAGS="$gl_save_CFLAGS"])
     AC_MSG_RESULT([$gl_cv_cc_visibility])
     if test $gl_cv_cc_visibility = yes; then
       CFLAG_VISIBILITY="-fvisibility=hidden"
+      CXXFLAG_VISIBILITY="-fvisibility=hidden -fvisibility-inlines-hidden"
+      NO_VISIBILITY="-fvisibility=default"
       HAVE_VISIBILITY=1
     fi
   ])
   AS_IF([test "x$SUNCC" = "xyes"],[
     CFLAG_VISIBILITY="-xldscope=hidden"
+    CXXFLAG_VISIBILITY="-xldscope=hidden"
+    NO_VISIBILITY="-xldscope=global"
     HAVE_VISIBILITY=1
   ])
   AC_SUBST([CFLAG_VISIBILITY])
+  AC_SUBST([CXXFLAG_VISIBILITY])
+  AC_SUBST([NO_VISIBILITY])
   AC_SUBST([HAVE_VISIBILITY])
   AC_DEFINE_UNQUOTED([HAVE_VISIBILITY], [$HAVE_VISIBILITY],
     [Define to 1 or 0, depending whether the compiler supports simple visibility declarations.])
 ])
+
+AC_DEFUN([PANDORA_ENABLE_VISIBILITY],[
+  AC_REQUIRE([PANDORA_CHECK_VISIBILITY])
+  AM_CFLAGS="${AM_CFLAGS} ${CFLAG_VISIBILITY}"
+  AM_CXXFLAGS="${AM_CXXFLAGS} ${CXXFLAG_VISIBILITY}"
+])