Bug 1005710 - Avoid preprocessing the services JS exports files needlessly; r=mshal

services/common/Makefile.in

@@ -25,7 +25,9 @@ testing_modules := \
   utils.js \
   $(NULL)
 
-PREF_JS_EXPORTS = $(srcdir)/services-common.js
+JS_EXPORTS_FILES := $(srcdir)/services-common.js
+JS_EXPORTS_DEST = $(FINAL_TARGET)/$(PREF_DIR)
+INSTALL_TARGETS += JS_EXPORTS
 
 MODULES_FILES := $(modules)
 MODULES_DEST = $(FINAL_TARGET)/modules/services-common

services/sync/Makefile.in

@@ -62,7 +62,9 @@ sync_testing_modules := \
   fxa_utils.js \
   $(NULL)
 
-PREF_JS_EXPORTS := $(srcdir)/services-sync.js
+JS_EXPORTS_FILES := $(srcdir)/services-sync.js
+JS_EXPORTS_DEST = $(FINAL_TARGET)/$(PREF_DIR)
+INSTALL_TARGETS += JS_EXPORTS
 
 # Install JS module files.
 SYNC_MAIN_FILES := $(addprefix modules/,$(sync_modules))