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

[Tony Theodore]

Hi Mark,

On 19 August 2011 05:36, Mark Brand <address@hidden> wrote:
> 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?

I'd say libgomp is doing the right thing, but gcc is partly building
as a multi-lib. I won't have chance to look at it before tomorrow, but
the first thing I'd is try explicitly passing --disable-multilib to
gcc's ./configure (and probably binutils as well).

Cheers,

Tony