Re: detection and support of OpenMP

[Noah Misch]

On Sun, May 27, 2007 at 10:53:06PM +0200, Bruno Haible wrote:
> Noah Misch wrote on Tuesday:
> > If we reach the stage of testing additional compiler options, the current 
> > $CC
> > $CFLAGS failed to compile the test program.  If that compiler treats 
> > `-openmp'
> > like `-o penmp', it will still fail to compile the test program.  Do we 
> > really
> > need this special care?
> > 
> > Possible simplifying patch:
...
> Well, your patch never got to trying the second, third, etc. possibility,
> due to the unconditional 'break'. I have tested the appended modified patch:
> it works with gcc (with result -fopenmp) and with Sun cc (with result 
> -xopenmp),
> therefore I believe the other compilers will work as well. Also I added
> the necessary comments.
> 
> The good thing about your patch is that it gets rid of the compiler brand
> tests, thus the Fortran support should work fine with this version (untested).
> 
> 
> 2007-05-27  Noah Misch  <address@hidden>
>             Bruno Haible   <address@hidden>
> 
>       * lib/autoconf/c.m4 (AC_OPENMP): Use a simple loop instead of compiler
>       brand tests.

Thanks for checking and revising the patch.  I installed it.