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}"
+])