[PATCH] Fix omp_lib.f90 with -fimplicit-none (PR libgomp/36471)

[Tobias Burnus]

Jakub Jelinek wrote:
> I have no problems with the omp_lib.f90.in change, but what would the
> configure.ac change buy us over it?  If it affects also the libgomp
> testsuite,
I missed that. That was what I meant by "lightly tested". I will 
bootstrap and commit then the omp_lib.f90.in change.

The advantage of the -fimplicit-none change is that one cannot forget to 
add "implicit none" in the .f90 file - and bugs due to implicitly 
defined variables are nasty.

Tobias