Is there some way of detecting or specifying that a Makefile is GNU make specific? I'm kinda thinking of something similar to the .POSIX directive.
I'm in a situation where got a bunch of Makefiles, some BSD makefile, some GNU, some POSIX and to somehow handle this without having to remeber if one is to type make, gmake, nmake, I want to create a small wrapper that can sorta figure it out by itself. Other ideas are welcome too ...
