Try normal method (uncompressed) if Z_DATA_ERROR is returned.
treec110740fce0f0c723afd00fd13886614ab3e3a4b
-rw-r--r-- 275 AUTHORS
-rw-r--r-- 3228 COPYING
-rw-r--r-- 535 ChangeLog
-rw-r--r-- 15578 INSTALL
-rw-r--r-- 50 Makefile.am
-rw-r--r-- 1213 NEWS
-rw-r--r-- 1304 README
-rwxr-xr-x 95 bootstrap
-rw-r--r-- 1729 configure.ac
drwxr-xr-x - include
drwxr-xr-x - man
drwxr-xr-x - src