Bug 905938 - Use explicit rules for %.i, %.s, %.res, moc_% and qrc_%. r=gps
Bug 905938 - Cancel GNU make builtin implicit rules by forcing -r instead of adding implicit rules to cancel them out. r=gps
Bug 905938 - Remove Java rules from rules.mk. r=gps
Bug 905938 - Use explicit rules for {export,libs,tools}_tier_%. r=gps
Bug 903369 - Wrap subconfigure invocation and restore config.status produced file timestamps if they haven't changed. r=gps
Bug 906403 - Avoid subconfigure fail in incremental builds when some variable like CFLAGS change. r=gps