Bug 1282843 - Add ability to specify system paths to @old_configure_options. r=glandium

build/moz.configure/old.configure

@@ -155,6 +155,7 @@ def old_configure_options(*options):
 
 @old_configure_options(
     '--cache-file',
+    '--datadir',
     '--enable-accessibility',
     '--enable-address-sanitizer',
     '--enable-alsa',
@@ -260,6 +261,8 @@ def old_configure_options(*options):
     '--enable-webspeechtestbackend',
     '--enable-xul',
     '--enable-zipwriter',
+    '--includedir',
+    '--libdir',
     '--no-create',
     '--prefix',
     '--with-adjust-sdk-keyfile',