diff --git a/Makefile.in b/Makefile.in
index 4a595907440d..1fa9bbb30045 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -98,7 +98,7 @@ tier_0_dirs = \
 tier_1_dirs = js
 
 # MacOSX needs to build lib for MoreFiles before xpcom
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 tier_1_dirs += lib/mac/MoreFiles
 endif
 
diff --git a/config/autoconf.mk.in b/config/autoconf.mk.in
index 052d218d9137..402154e7fd05 100644
--- a/config/autoconf.mk.in
+++ b/config/autoconf.mk.in
@@ -304,6 +304,7 @@ MOZ_ENABLE_GTK2		= @MOZ_ENABLE_GTK2@
 MOZ_ENABLE_XLIB		= @MOZ_ENABLE_XLIB@
 MOZ_ENABLE_QT		= @MOZ_ENABLE_QT@
 MOZ_ENABLE_PHOTON	= @MOZ_ENABLE_PHOTON@
+MOZ_ENABLE_COCOA	= @MOZ_ENABLE_COCOA@
 MOZ_ENABLE_XREMOTE	= @MOZ_ENABLE_XREMOTE@
 
 MOZ_GTK_CFLAGS		= @MOZ_GTK_CFLAGS@
diff --git a/configure.in b/configure.in
index 0629b28a5af3..7993b7a04891 100644
--- a/configure.in
+++ b/configure.in
@@ -448,6 +448,7 @@ XPCOM_LIBS='-L$(DIST)/bin -lxpcom'
 MOZ_COMPONENT_NSPR_LIBS='-L$(DIST)/bin $(NSPR_LIBS)'
 MOZ_COMPONENT_XPCOM_LIBS='-L$(DIST)/bin -lxpcom'
 
+_PLATFORM_DEFAULT_TOOLKIT=gtk
 MOZ_WIDGET_TOOLKIT_LDFLAGS='-lwidget_$(MOZ_WIDGET_TOOLKIT)'
 MOZ_GFX_TOOLKIT_LDFLAGS='-lgfx_$(MOZ_WIDGET_TOOLKIT) $(MOZ_XLIBRGB_LDFLAGS)'
 WIDGET_DLL='\"libwidget_$(MOZ_WIDGET_TOOLKIT)$(DLL_SUFFIX)\"'
@@ -723,7 +724,7 @@ case "$target" in
 *-beos*)
     no_x=yes
     MKSHLIB='$(CXX) $(CXXFLAGS) $(DSO_LDOPTS) -o $@'
-    MOZ_WIDGET_TOOLKIT="beos"
+    _PLATFORM_DEFAULT_TOOLKIT="beos"
     DSO_LDOPTS='-nostart -Wl,-h -Wl,$@'
     TK_LIBS='-lbe -lroot'
     LIBS="$LIBS -lbe"
@@ -772,7 +773,7 @@ case "$target" in
         AC_DEFINE(TARGET_API_MAC_CARBON)
         no_x=yes
         MACOSX=1
-        MOZ_WIDGET_TOOLKIT='mac'
+        _PLATFORM_DEFAULT_TOOLKIT='mac'
         DSO_LDOPTS="$DSO_LDOPTS -arch ppc -install_name @executable_path/\$@"
         TK_LIBS='-framework Carbon /System/Library/Frameworks/Carbon.framework/Carbon'
         TK_CFLAGS="-I/Developer/Headers/FlatCarbon -F/System/Library/Frameworks"
@@ -948,7 +949,7 @@ case "$target" in
     AC_DEFINE(STDC_HEADERS)
     TARGET_MD_ARCH=win32
     OS_TARGET=WINNT
-    MOZ_WIDGET_TOOLKIT='windows'
+    _PLATFORM_DEFAULT_TOOLKIT='windows'
     BIN_SUFFIX='.exe'
     USE_SHORT_LIBNAME=1
 
@@ -1025,7 +1026,7 @@ case "$target" in
 	_DEFINES_CXXFLAGS='-DMOZILLA_CLIENT -Wp,-include -Wp,$(DEPTH)/config-defs.h -D_POSIX_C_SOURCE=199506'
 	if test "$with_x" != "yes"
 	then
-		MOZ_WIDGET_TOOLKIT="photon"
+		_PLATFORM_DEFAULT_TOOLKIT="photon"
     	AC_DEFINE(NO_X11)
 	    TK_CFLAGS='-I/usr/include/photon'
 		TK_LIBS='-lph'
@@ -1086,7 +1087,7 @@ case "$target" in
     DSO_PIC_CFLAGS=''
     OS_ARCH=OS2
     OS_TARGET=OS2
-    MOZ_WIDGET_TOOLKIT=os2
+    _PLATFORM_DEFAULT_TOOLKIT=os2
     MOZ_WIDGET_TOOLKIT_LDFLAGS='$(DIST)/lib/wdgt$(MOZ_WIDGET_TOOLKIT)'
     MOZ_GFX_TOOLKIT_LDFLAGS='$(DIST)/lib/gfx_$(MOZ_WIDGET_TOOLKIT)'
     WIDGET_DLL='\"wdgt$(MOZ_WIDGET_TOOLKIT)$(DLL_SUFFIX)\"'
@@ -1193,7 +1194,7 @@ alpha*-*-osf*)
     dnl Explicit set STDC_HEADERS to workaround QNX 6.0's failing of std test
     AC_DEFINE(STDC_HEADERS)
     if test "$no_x" = "yes"; then
-	    MOZ_WIDGET_TOOLKIT='photon'
+	    _PLATFORM_DEFAULT_TOOLKIT='photon'
 	    TK_CFLAGS='-I/usr/nto/include/photon'
 	    TK_LIBS='-lphoton -lphrender'
 	    AC_DEFINE(NO_X11)
@@ -2602,9 +2603,8 @@ dnl =
 dnl ========================================================
 MOZ_ARG_HEADER(Toolkit Options)
 
-if test "$no_x" != "yes"; then
     dnl ========================================================
-    dnl = Select the default x toolkit
+    dnl = Select the default toolkit
     dnl ========================================================
     dnl XXX - remove this next milestone
     if test -z "$enable_default_toolkit" && test "$enable_toolkit"; then
@@ -2612,22 +2612,33 @@ if test "$no_x" != "yes"; then
     fi
 	MOZ_ARG_ENABLE_STRING(default-toolkit,
 	[  --enable-default-toolkit=TK
-                          Select default toolkit (default=gtk)],
+                          Select default toolkit (default=<platform specific>)],
     [ _DEFAULT_TOOLKIT=$enableval ],
-    [ _DEFAULT_TOOLKIT=gtk ])
+    [ _DEFAULT_TOOLKIT=$_PLATFORM_DEFAULT_TOOLKIT])
 
     if test "$_DEFAULT_TOOLKIT" = "gtk" \
         -o "$_DEFAULT_TOOLKIT" = "qt" \
         -o "$_DEFAULT_TOOLKIT" = "gtk2" \
-        -o "$_DEFAULT_TOOLKIT" = "xlib"
+        -o "$_DEFAULT_TOOLKIT" = "xlib" \
+        -o "$_DEFAULT_TOOLKIT" = "os2" \
+        -o "$_DEFAULT_TOOLKIT" = "beos" \
+        -o "$_DEFAULT_TOOLKIT" = "photon" \
+        -o "$_DEFAULT_TOOLKIT" = "mac" \
+        -o "$_DEFAULT_TOOLKIT" = "windows" \
+        -o "$_DEFAULT_TOOLKIT" = "cocoa"
     then
         dnl nglayout only supports building with one toolkit,
         dnl so ignore everything after the first comma (",").
         MOZ_WIDGET_TOOLKIT=`echo "$_DEFAULT_TOOLKIT" | sed -e "s/,.*$//"`
     else
-        AC_MSG_ERROR(Toolkit must be xlib, gtk, gtk2 or qt.)
+        if test "$no_x" != "yes"; then
+            AC_MSG_ERROR([Toolkit must be xlib, gtk, gtk2 or qt.])
+        else
+            AC_MSG_ERROR([Toolkit must be $_PLATFORM_DEFAULT_TOOLKIT.])
+        fi
     fi
 
+if test "$no_x" != "yes"; then
     dnl ========================================================
     dnl = Gtk support hackery                                  =
     dnl ========================================================
@@ -2709,6 +2720,10 @@ photon)
 	MOZ_ENABLE_PHOTON=1
 	AC_DEFINE(MOZ_WIDGET_PHOTON)
     ;;
+cocoa)
+    MOZ_ENABLE_COCOA=1
+    AC_DEFINE(MOZ_WIDGET_COCOA)
+    ;;
 esac
 
 if test "$MOZ_ENABLE_XREMOTE"; then
@@ -2880,6 +2895,7 @@ AC_SUBST(MOZ_ENABLE_XLIB)
 AC_SUBST(MOZ_ENABLE_GTK2)
 AC_SUBST(MOZ_ENABLE_QT)
 AC_SUBST(MOZ_ENABLE_PHOTON)
+AC_SUBST(MOZ_ENABLE_COCOA)
 AC_SUBST(MOZ_ENABLE_XREMOTE)
 AC_SUBST(MOZ_GTK_CFLAGS)
 AC_SUBST(MOZ_GTK_LDFLAGS)
diff --git a/content/xbl/builtin/Makefile.in b/content/xbl/builtin/Makefile.in
index 692fca35dcde..21e5e7ec111f 100644
--- a/content/xbl/builtin/Makefile.in
+++ b/content/xbl/builtin/Makefile.in
@@ -29,7 +29,7 @@ include $(DEPTH)/config/autoconf.mk
 ifneq (,$(filter OS2 WINNT,$(OS_ARCH)))
 DIRS		= win
 else
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 DIRS		= mac
 else
 DIRS		= unix
diff --git a/gfx/public/Makefile.in b/gfx/public/Makefile.in
index 7e02d07970f9..f76708938f95 100644
--- a/gfx/public/Makefile.in
+++ b/gfx/public/Makefile.in
@@ -58,7 +58,7 @@ EXPORTS		= \
 		nsThemeConstants.h \
 		$(NULL)
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 EXPORTS		+= nsIPrintingContext.h
 endif
 
diff --git a/gfx/src/Makefile.in b/gfx/src/Makefile.in
index adebfd2a0c58..088c5806b94a 100644
--- a/gfx/src/Makefile.in
+++ b/gfx/src/Makefile.in
@@ -109,7 +109,7 @@ ifneq (,$(filter gtk xlib beos,$(MOZ_WIDGET_TOOLKIT)))
 CPPSRCS += imgScaler.cpp
 endif
 
-ifeq (mac, $(MOZ_WIDGET_TOOLKIT))
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 CPPSRCS += \
         mac/nsRegionPool.cpp \
         $(NULL)
@@ -121,7 +121,7 @@ EXTRA_DSO_LDOPTS = \
         $(MOZ_COMPONENT_LIBS) \
         $(NULL)
 
-ifeq (mac, $(MOZ_WIDGET_TOOLKIT))
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 EXTRA_DSO_LDOPTS += \
         $(TK_LIBS) \
         $(NULL)
diff --git a/themes/classic/Makefile.in b/themes/classic/Makefile.in
index 68c27418c3a5..e7be26c0a1cf 100644
--- a/themes/classic/Makefile.in
+++ b/themes/classic/Makefile.in
@@ -26,7 +26,7 @@ VPATH		= @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
-ifeq (mac,$(MOZ_WIDGET_TOOLKIT))
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 THEME_PLATFORM = mac
 else
 THEME_PLATFORM = win
diff --git a/webshell/tests/viewer/Makefile.in b/webshell/tests/viewer/Makefile.in
index 505b0e03671b..c9b4405bb84f 100644
--- a/webshell/tests/viewer/Makefile.in
+++ b/webshell/tests/viewer/Makefile.in
@@ -74,7 +74,7 @@ CPPSRCS			= \
 			nsWindowCreator.cpp \
 			$(NULL)
 
-ifeq (,$(filter beos os2 photon mac windows,$(MOZ_WIDGET_TOOLKIT)))
+ifeq (,$(filter beos os2 photon mac cocoa windows,$(MOZ_WIDGET_TOOLKIT)))
 DIRS			+= unix
 VIEWER_TK_LIBS	= unix/$(MOZ_WIDGET_TOOLKIT)/libviewer_$(MOZ_WIDGET_TOOLKIT)_s.a
 else
@@ -88,7 +88,7 @@ endif
 ifeq ($(MOZ_WIDGET_TOOLKIT),photon)
 TOOLKIT_CPPSRCS		= nsPhMain.cpp nsPhMenu.cpp
 endif
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 TOOLKIT_CPPSRCS		= nsMacMain.cpp
 endif
 ifeq ($(MOZ_WIDGET_TOOLKIT),windows)
diff --git a/widget/public/Makefile.in b/widget/public/Makefile.in
index 587c843efc5d..40b18edecf72 100644
--- a/widget/public/Makefile.in
+++ b/widget/public/Makefile.in
@@ -55,7 +55,7 @@ EXPORTS		= \
 		nsIXRemoteWidgetHelper.h \
 		$(NULL)
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 EXPORTS       += nsWidgetAtoms.h nsWidgetAtomList.h
 endif
 
@@ -79,7 +79,7 @@ XPIDLSRCS	= \
 		nsIXRemoteClient.idl \
 		$(NULL)
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 XPIDLSRCS       += nsIEventSink.idl
 endif
 
diff --git a/widget/src/Makefile.in b/widget/src/Makefile.in
index b12e86c8cd79..1e652435379a 100644
--- a/widget/src/Makefile.in
+++ b/widget/src/Makefile.in
@@ -28,7 +28,7 @@ include $(DEPTH)/config/autoconf.mk
 
 DIRS		= xpwidgets support
 
-ifneq (,$(filter beos os2 mac,$(MOZ_WIDGET_TOOLKIT)))
+ifneq (,$(filter beos os2 mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 DIRS		+= $(MOZ_WIDGET_TOOLKIT)
 endif
 
diff --git a/widget/src/xpwidgets/Makefile.in b/widget/src/xpwidgets/Makefile.in
index 80755fb8bf1f..7ded55395d81 100644
--- a/widget/src/xpwidgets/Makefile.in
+++ b/widget/src/xpwidgets/Makefile.in
@@ -55,11 +55,11 @@ CPPSRCS		= \
 		nsClipboardHelper.cpp \
 		$(NULL)
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 CPPSRCS += nsWidgetAtoms.cpp
 endif
 
-ifneq (,$(filter beos os2 mac windows,$(MOZ_WIDGET_TOOLKIT)))
+ifneq (,$(filter beos os2 mac cocoa windows,$(MOZ_WIDGET_TOOLKIT)))
 CPPSRCS += nsBaseFilePicker.cpp
 REQUIRES += docshell view intl
 endif
diff --git a/xpcom/build/Makefile.in b/xpcom/build/Makefile.in
index 580f3ee0b3b0..9b2142b1d3a2 100644
--- a/xpcom/build/Makefile.in
+++ b/xpcom/build/Makefile.in
@@ -38,7 +38,7 @@ EXPORTS		= \
 		$(NULL)			
 
 # pull in MoreFiles for MacOSX
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 REQUIRES += macmorefiles
 endif
 
@@ -89,7 +89,7 @@ EXTRA_DSO_LDOPTS += -liberty
 endif
 
 # pull in MoreFiles for MacOSX
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 EXTRA_DSO_LDOPTS += $(DEPTH)/dist/lib/libmacmorefiles_s.a
 endif
 
@@ -118,7 +118,7 @@ ifdef GC_LEAK_DETECTOR
 DEFINES += -DGC_LEAK_DETECTOR
 endif
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 CXXFLAGS	+= $(TK_CFLAGS)
 EXTRA_DSO_LDOPTS += $(TK_LIBS)
 endif
diff --git a/xpcom/io/Makefile.in b/xpcom/io/Makefile.in
index 1540fc58486b..0c58993c9310 100644
--- a/xpcom/io/Makefile.in
+++ b/xpcom/io/Makefile.in
@@ -62,7 +62,7 @@ CPPSRCS		= \
 ifeq ($(MOZ_WIDGET_TOOLKIT),os2)
 CPPSRCS		+= nsLocalFileOS2.cpp
 #else
-#ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+#ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 #CPPSRCS     += nsLocalFileMac.cpp
 #CSRCS       += macDirectoryCopy.c
 else
@@ -97,7 +97,7 @@ EXPORTS		= \
 ifeq ($(MOZ_WIDGET_TOOLKIT),os2)
 EXPORTS		+= nsLocalFileOS2.h
 else
-#ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+#ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 #EXPORTS     += nsLocalFileMac.h nsILocalFileMac.h
 #else
 ifeq ($(MOZ_WIDGET_TOOLKIT),windows)
diff --git a/xpfe/appshell/public/Makefile.in b/xpfe/appshell/public/Makefile.in
index 097cdad2f91a..7624f4763dd1 100644
--- a/xpfe/appshell/public/Makefile.in
+++ b/xpfe/appshell/public/Makefile.in
@@ -47,7 +47,7 @@ XPIDLSRCS	= \
 		nsINativeAppSupport.idl \
 		$(NULL)
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 XPIDLSRCS	+= nsIInternetConfigService.idl
 else
 ifeq ($(MOZ_WIDGET_TOOLKIT),windows)
diff --git a/xpfe/bootstrap/Makefile.in b/xpfe/bootstrap/Makefile.in
index ac480717c6b6..34f3943f275d 100644
--- a/xpfe/bootstrap/Makefile.in
+++ b/xpfe/bootstrap/Makefile.in
@@ -329,7 +329,7 @@ nsStaticComponents.cpp: nsStaticComponents.cpp.in Makefile Makefile.in $(FINAL_L
 	sed -e "s|%MODULE_LIST%|$(foreach m, $(_COMPONENT_LIST),MODULE($(m)),)|" \
 	> $@
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 
 ifdef MOZ_DEBUG
 APP_NAME = MozillaDebug
@@ -343,7 +343,6 @@ libs:: $(PROGRAM)
 	cp -R $(srcdir)/macbuild/Contents $(DIST)/$(APP_NAME).app
 	cp -RL $(DIST)/bin $(DIST)/$(APP_NAME).app/Contents/MacOS
 	cp -RL $(srcdir)/macbuild/mach.icns $(DIST)/$(APP_NAME).app/Contents/Resources/mach.icns
-
 endif
 
 echo_objs:
diff --git a/xpfe/browser/resources/content/Makefile.in b/xpfe/browser/resources/content/Makefile.in
index f074d582cbe4..fc473fe65f3b 100644
--- a/xpfe/browser/resources/content/Makefile.in
+++ b/xpfe/browser/resources/content/Makefile.in
@@ -29,7 +29,7 @@ include $(DEPTH)/config/autoconf.mk
 ifneq (,$(filter OS2 WINNT,$(OS_ARCH)))
 DIRS		= win
 else
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 DIRS		= mac
 else
 DIRS		= unix
diff --git a/xpfe/communicator/Makefile.in b/xpfe/communicator/Makefile.in
index b2fcf7f6b8cd..4e1e4310a7ce 100644
--- a/xpfe/communicator/Makefile.in
+++ b/xpfe/communicator/Makefile.in
@@ -30,7 +30,7 @@ DIRS		= resources
 
 include $(topsrcdir)/config/rules.mk
 
-ifeq (mac,$(MOZ_WIDGET_TOOLKIT))
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 CHROME_PLATFORM = mac
 else
 ifneq (,$(filter OS2 WINNT,$(OS_ARCH)))
diff --git a/xpfe/communicator/resources/content/Makefile.in b/xpfe/communicator/resources/content/Makefile.in
index cdad6ddea215..f06b555e0309 100644
--- a/xpfe/communicator/resources/content/Makefile.in
+++ b/xpfe/communicator/resources/content/Makefile.in
@@ -29,7 +29,7 @@ include $(DEPTH)/config/autoconf.mk
 ifneq (,$(filter os2 windows,$(MOZ_WIDGET_TOOLKIT)))
 DIRS 		= win
 else
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 DIRS		= mac
 else
 DIRS 		= unix
diff --git a/xpfe/communicator/resources/locale/en-US/Makefile.in b/xpfe/communicator/resources/locale/en-US/Makefile.in
index f1aa82f74635..fe65f67ebcd0 100644
--- a/xpfe/communicator/resources/locale/en-US/Makefile.in
+++ b/xpfe/communicator/resources/locale/en-US/Makefile.in
@@ -29,7 +29,7 @@ include $(DEPTH)/config/autoconf.mk
 ifneq (,$(filter os2 windows,$(MOZ_WIDGET_TOOLKIT)))
 DIRS 		= win
 else
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 DIRS		= mac
 else
 DIRS 		= unix
diff --git a/xpfe/components/filepicker/Makefile.in b/xpfe/components/filepicker/Makefile.in
index a7049207b8b3..28e052219f8e 100644
--- a/xpfe/components/filepicker/Makefile.in
+++ b/xpfe/components/filepicker/Makefile.in
@@ -28,7 +28,7 @@ VPATH		= @srcdir@
 
 include $(DEPTH)/config/autoconf.mk
 
-ifeq (,$(filter beos os2 mac windows,$(MOZ_WIDGET_TOOLKIT)))
+ifeq (,$(filter beos os2 mac cocoa windows,$(MOZ_WIDGET_TOOLKIT)))
 DIRS = public src
 endif
 
diff --git a/xpfe/global/Makefile.in b/xpfe/global/Makefile.in
index e805471381fe..b7c018611529 100644
--- a/xpfe/global/Makefile.in
+++ b/xpfe/global/Makefile.in
@@ -32,7 +32,7 @@ CHROME_DEPS	= build.dtd
 
 include $(topsrcdir)/config/rules.mk
 
-ifeq (mac,$(MOZ_WIDGET_TOOLKIT))
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 CHROME_PLATFORM = mac
 else
 ifneq (,$(filter OS2 WINNT,$(OS_ARCH)))
diff --git a/xpfe/global/resources/content/Makefile.in b/xpfe/global/resources/content/Makefile.in
index 1bde59058583..1e4c9c9439a5 100644
--- a/xpfe/global/resources/content/Makefile.in
+++ b/xpfe/global/resources/content/Makefile.in
@@ -29,7 +29,7 @@ include $(DEPTH)/config/autoconf.mk
 ifneq (,$(filter os2 windows,$(MOZ_WIDGET_TOOLKIT)))
 DIRS		= win
 else
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 DIRS		= mac
 else
 DIRS		= unix
diff --git a/xpinstall/cleanup/Makefile.in b/xpinstall/cleanup/Makefile.in
index 03a78460cfb7..5e721aa57169 100644
--- a/xpinstall/cleanup/Makefile.in
+++ b/xpinstall/cleanup/Makefile.in
@@ -62,7 +62,7 @@ DEFINES += -DSTANDALONE_REGISTRY
 
 include $(topsrcdir)/config/rules.mk
 
-ifeq ($(MOZ_WIDGET_TOOLKIT),mac)
+ifneq (,$(filter mac cocoa,$(MOZ_WIDGET_TOOLKIT)))
 LIBS += -lmacmorefiles_s
 LDFLAGS += $(TK_LIBS)
 endif