At or about line 315 or a top-of-tree config/imake/imakemdep.h there is code that looks like this:
#if defined(__GNUC__) && !defined(USE_CC_E)
#define USE_CC_E
...
#endif
I dont know when this was added, or even particularly why, but it seems wrong to me. Just because you are using GCC does NOT mean you want to use gcc -E as your CPP. In fact, I have just encountered a case where it even breaks things in unexpected ways. Here's the problem. I wanted to add the -mcpu=i686 -march=i586 lines to my .cf file. But gcc defines symbols like -D__i586__, -Di586, -D__i586 etc, which means that the generated Makefiles end up with -march=1 -mcpu=i686. This of course causes gcc to fail.
Does anyone have any idea why this was deemed necessary, and would anyone be heartbroken if I removed that block of code?
Kean
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