As A computer game developer I now use this EVERYWHERE
make including the unit testing system ctest
Great build system, i have never used qmake, and don't know about if it supports defining toolchains like the ones for Android and iOS. But this one does!
How can you live without it?
My favorite cross-platform build system by a country mile. I just love the output from the Makefile when compiling. Very simple, color-coded, human-readable output. And its progress notifications during compilation are irreplaceable (especially for large projects) so much so that I even use CMake for my Qt projects.
Why you still use it while qmake works fine!
so far only used it to compile eiskalt dc++ client so far so good