Applied WANG Cong patch: Do some cleanups and fix a memory leak.
treea0bf4672e26d9abdd76e3292d71f47e6ddca42bc
-rw-r--r-- 15122 COPYING
-rw-r--r-- 0 ChangeLog
-rw-r--r-- 2511 Makefile
drwxr-xr-x - backends
drwxr-xr-x - docs
drwxr-xr-x - include
drwxr-xr-x - src
drwxr-xr-x - tools