Bustage fix from bug 237745.

mail/app/Makefile.in

@@ -64,6 +64,8 @@ REQUIRES = \
         appshell \
 	$(NULL)
 
+LOCAL_INCLUDES = -I$(topsrcdir)/toolkit/xre
+
 CPPSRCS = nsMailApp.cpp
 
 ifdef BUILD_STATIC_LIBS
@@ -75,7 +77,7 @@ TK_LIBS := -framework Cocoa $(TK_LIBS)
 endif
 
 LIBS = \
-  	$(STATIC_COMPONENTS_LINKER_PATH) \
+	$(STATIC_COMPONENTS_LINKER_PATH) \
 	$(DIST)/lib/$(LIB_PREFIX)xulapp_s.$(LIB_SUFFIX) \
 	$(MOZ_JS_LIBS) \
 	$(TK_LIBS) \