https://github.com/arnholm/codeblocks_sfmirror/blob/master/src/tools/cbp2make/src/cbpunit.cpp#L115 has m_Filename instead of m_FileName as per https://github.com/arnholm/codeblocks_sfmirror/blob/master/src/tools/cbp2make/src/cbpunit.h#L36
If the variable does not match, why the compiler hasn't report this?
Maybe, the # if branch is not active in your reported case?
I just spotted this by accident (open the file by mistake and spotted it) as the variable does not match the variable in the #if code block.
Fixed in r13601 (https://sourceforge.net/p/codeblocks/code/13601/), thank you.
Thanks for taking the time to sort this out.