I have a vision. It is gcc/gcc/incpath.c that the problem is in.
I had been looking through that file for a few days but eventually gave up.
It is worth mentioning that adding an '-iprefix /this/need/not/exist' vanishes
the problem.
This might have something to do with the following line in incpa
We use neither --with-sysroot nor --with-build-sysroot.
The reason is that, the hard-coded path in GCC repository - that is, the
/mingw/ one - does not actually exist.
In order to build GCC for mingw targets, we take either solution:
0) Make a symlink (or rather, a copy, since Windows does not su
