Add Linux support for FF5 (Gecko 5.0) in the xpcom plugin.

Mac and Windows to follow as independent changes shortly after.

Review at http://gwt-code-reviews.appspot.com/1466805


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10387 8db76d5a-ed1c-0410-87a9-c151d255dfc7
diff --git a/plugins/xpcom/Makefile b/plugins/xpcom/Makefile
index 7a07984..4ee7372 100644
--- a/plugins/xpcom/Makefile
+++ b/plugins/xpcom/Makefile
@@ -49,7 +49,7 @@
 export FLAG32BIT
 
 ifeq ($(BROWSER),)
-$(warning Defaulting to FF3 build [set with BROWSER=ff3, ff3+, ff35, ff36, or ff40])
+$(warning Defaulting to FF3 build [set with BROWSER=ff3, ff3+, ff35, ff36, ff40, or ff50])
 BROWSER=ff3
 endif
 
@@ -97,14 +97,23 @@
 CFLAGS += -DGECKO_VERSION=2000
 MOZALLOC_DLLFLAGS = -lmozalloc
 MOZJS_DLLFLAGS = -lxul
-
 #FF4 drops PPC, adds x86_64. Use FLAG32BIT as a switch in the unified headers.
 ifeq ($(OS),mac)
 ALLARCHCFLAGS = -arch i386 -arch x86_64 -Xarch_i386 -DFLAG32BIT=32 -Xarch_x86_64 -DFLAG32BIT=64
 endif
-
 else
-$(error Unrecognized BROWSER of $(BROWSER) - options are ff3, ff3+, ff35, ff36, ff40)
+ifeq ($(BROWSER),ff50)
+GECKO_VERSION   = 5.0.0
+CFLAGS += -DGECKO_VERSION=5000
+MOZALLOC_DLLFLAGS = -lmozalloc
+MOZJS_DLLFLAGS = -lxul
+#FF4 drops PPC, adds x86_64. Use FLAG32BIT as a switch in the unified headers.
+ifeq ($(OS),mac)
+ALLARCHCFLAGS = -arch i386 -arch x86_64 -Xarch_i386 -DFLAG32BIT=32 -Xarch_x86_64 -DFLAG32BIT=64
+endif
+else
+$(error Unrecognized BROWSER of $(BROWSER) - options are ff3, ff3+, ff35, ff36, ff40, ff50)
+endif
 endif
 endif
 endif
@@ -178,11 +187,13 @@
 	$(MAKE) lib BROWSER=ff35 ARCH=x86
 	$(MAKE) lib BROWSER=ff36 ARCH=x86
 	$(MAKE) lib BROWSER=ff40 ARCH=x86
+	$(MAKE) lib BROWSER=ff50 ARCH=x86
 	$(MAKE) lib BROWSER=ff3 ARCH=x86_64
 	$(MAKE) lib BROWSER=ff3+ ARCH=x86_64
 	$(MAKE) lib BROWSER=ff35 ARCH=x86_64
 	$(MAKE) lib BROWSER=ff36 ARCH=x86_64
 	$(MAKE) lib BROWSER=ff40 ARCH=x86_64
+	$(MAKE) lib BROWSER=ff50 ARCH=x86_64
 
 macplatforms:
 	$(MAKE) lib BROWSER=ff3
@@ -246,6 +257,7 @@
 	@$(MAKE) $@ BROWSER=ff35
 	@$(MAKE) $@ BROWSER=ff36
 	@$(MAKE) $@ BROWSER=ff40
+	@$(MAKE) $@ BROWSER=ff50
 endif
 
 DEPEND = g++ -MM -MT'$$(OBJ_OUTDIR)/$(patsubst %.cpp,%.o,$(src))' \