For Mac OS X 10.4 or later
The Macintosh interface in Release 4 of CMask has been largely rewritten to be compatible with the latest Mac OS X systems, but functionally it is nearly identical to Release 3. This version is a “Universal Binary” and should support running on any Macintosh computer with Mac OS X 10.4 or later, including Intel Macs with 10.7 Lion or 10.8 Mountain Lion.
CMask-0.31r4.dmg (1.6MB)
For Mac OS 8 thru Mac OS X 10.6
I developed this update to the Mac interface of CMask back in 2008, but never released it for some reason. The Macintosh interface in Release 3 includes a few bug fixes and other minor improvements since Release 2.
Release 3 can run on any PowerMac or Intel Mac computer running Mac OS 8, OS 9, or Mac OS X up to 10.6 (Snow Leopard).
CMask-0.31r3.dmg (1.5MB)
A while ago, I corrected a bug in the command-line version of CMask that would cause it to crash if the input filename was longer than 32 characters. (Note that I did not provide a complete fix, but merely expanded the limit to 2048 characters and made the limit easier to change).
The following archives include the modified source code. The first one also includes binaries compiled for Mac OS X 10.5 or later (both PowerPC and Intel). They were compiled with GCC 4.0.1 and should be easy to recompile on many Unix-like operating systems. I have heard that the C++ code needs a few changes to compile with some more recent versions of GCC though.
For Mac OS X 10.5 or later
CMask source code and OS X binaries (124K)
CMask source code only (32K)