Looks like someone renamed (or something) md5c.c to md5.c.
tree008f6a65d76e995507e57f9aea5733deb83070b2
drwxr-xr-x - Demo
drwxr-xr-x - Doc
drwxr-xr-x - Grammar
drwxr-xr-x - Include
-rw-r--r-- 13548 LICENSE
drwxr-xr-x - Lib
drwxr-xr-x - Mac
-rw-r--r-- 33620 Makefile.pre.in
drwxr-xr-x - Misc
drwxr-xr-x - Modules
drwxr-xr-x - Objects
drwxr-xr-x - PC
drwxr-xr-x - PCbuild
drwxr-xr-x - Parser
drwxr-xr-x - Python
-rw-r--r-- 52812 README
drwxr-xr-x - RISCOS
drwxr-xr-x - Tools
-rwxr-xr-x 628297 configure
-rw-r--r-- 90822 configure.in
-rwxr-xr-x 7122 install-sh
-rw-r--r-- 25573 pyconfig.h.in
-rw-r--r-- 63807 setup.py