$NetBSD: patch-as,v 1.2 2012/12/24 21:14:19 joerg Exp $

Treat DragonFly like FreeBSD.

--- mozilla/js/src/configure.in.orig	2012-11-15 21:59:30.000000000 +0000
+++ mozilla/js/src/configure.in
@@ -799,7 +799,7 @@ EOF
                 AC_LANG_RESTORE
             ])
 
-        if test "$ac_cv_have_std__Throw" == "yes"; then
+        if test "$ac_cv_have_std__Throw" = "yes"; then
             AC_CACHE_CHECK(for |class __declspec(dllimport) exception| bug,
                            ac_cv_have_dllimport_exception_bug,
                 [
@@ -2157,7 +2157,7 @@ case "$target" in
     MOZ_FIX_LINK_PATHS='-Wl,-executable_path,$(LIBXUL_DIST)/bin'
     ;;
 
-*-freebsd*)
+*-freebsd*|*-dragonfly*)
     if test `test -x /usr/bin/objformat && /usr/bin/objformat || echo elf` != "elf"; then
 	DLL_SUFFIX=".so.1.0"
 	DSO_LDOPTS="-shared"
@@ -2818,7 +2818,7 @@ case "$target" in
 *-solaris*)
     AC_DEFINE(AVMPLUS_UNIX)
     ;;
-*-freebsd*|*-kfreebsd*)
+*-freebsd*|*-kfreebsd*|*-netbsd*|*-dragonfly*)
     AC_DEFINE(AVMPLUS_UNIX)
     ;;
 *-openbsd*)
@@ -3077,6 +3077,9 @@ if test "$GNU_CC"; then
   AC_CACHE_CHECK(for visibility(hidden) attribute,
                  ac_cv_visibility_hidden,
                  [cat > conftest.c <<EOF
+#ifdef __clang__
+#error Not supported by old Mozilla
+#endif
                   int foo __attribute__ ((visibility ("hidden"))) = 1;
 EOF
                   ac_cv_visibility_hidden=no
@@ -4344,7 +4347,7 @@ if test "$MOZ_MEMORY"; then
   *-darwin*)
     AC_DEFINE(MOZ_MEMORY_DARWIN)
     ;;
-  *-*freebsd*)
+  *-*freebsd*|*-*dragonfly*)
     AC_DEFINE(MOZ_MEMORY_BSD)
     ;;
   *-android*|*-linuxandroid*)