From the LMZA SDK documentation:
ANSI-C LZMA Decoder
~~~~~~~~~~~~~~~~~~~
Please note that interfaces for ANSI-C
code were changed in LZMA SDK 4.58. If
you want to use old interfaces you can
download previous version of LZMA SDK
from sourceforge.net site.
To use ANSI-C LZMA Decoder you need
the following files: 1) LzmaDec.h +
LzmaDec.c + Types.h
LzmaUtil/LzmaUtil.c is example
application that uses these files.
The example app should have everything you need, else the actual source for 7-zip will have what you need. There is also a C++ wrapper for 7-zip here which should simplify a lot of the needed ops.
