[Mingw-cross-env-list] gcc install directories and libgomp build failure

[Mark Brand]

Hi,

Yesterday there was an unexpected change to the gcc configuration in 
mingw-cross-env on my 64-bit opensuse factory system. Files previously 
installed under
<mce>/usr/lib/gcc/i686-pc-mingw32/4.6.1
are now installed under
<mce>/usr/lib64/gcc/i686-pc-mingw32/4.6.1.

I don't know what caused this change, but I speculate that it might have 
to do with recently updated opensuse packages.

I discovered this while investigating why building libgomp's test 
program suddenly started to fail due to omp.h not being found. Libgomp 
continues to install omp.h in 
<mce>/usr/lib/gcc/i686-pc-mingw32/4.6.1/include, which I guess is a 
directory no longer in the include search path since the change in gcc 
configuration.

I'm a bit over my head here. Does someone here have an idea about what 
caused the gcc configuration to change? Could it be that 'lib64' is 
actually right? If so, what about libgomp?

regards,

Mark