omit build path

[maitbot]

Closes #597

Have CMake filter out build path from COMPILER_INFO before using the string in constants.c

Signed-off-by: A. Maitland Bottoms [email protected]

[maitbot]

This is to address Issue #597

[jdemel]

This is the CMake string replace command. The COMPILER_INFO variable may contain a build path. With this change, it shouldn't anymore. Instead every occurence is replace with $BUILD_DIR. Seems like a good solution to me. @maitbot Thanks!

[jdemel]

I assume all questions are answered. Merging now.