Re: patch to have configure check if CC is intel C compiler

Comment added and patch applied. Thanks.

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Jeremy Drake wrote:
> If configure sees that the compiler specified by $CC looks like gcc
> (defines __GNUC__), then it puts some extra command line options into the
> CFLAGS (mostly -W*). The intel C compiler for linux emulates gcc by
> default, which means it defines that and looks very much like gcc to
> configure. However, it does not get along with the added -W flags very
> well. They don't seem to kill it, but some of them give warnings about
> unsupported command line options and others produce insane amounts of
> output from the compiler.
>
> This patch makes configure check for the __INTEL_COMPILER define (which is
> the recommended way to detect the intel compiler) before adding the extra
> CFLAGS if it thinks the compiler is GCC. I am not an autoconf hacker, so
> I may have done it wrong or something, but it appears to work for me (ICC
> 9.0.032 on gentoo i686 with latest packages).
>
> The patch is against the HEAD but I think it should be similar for other
> branches (I have been compiling 8.0 and 8.1 for some time with the intel
> compiler by manually massaging the makefiles after configure ran).
>
>
> --
> We the unwilling, led by the ungrateful, are doing the impossible.
> We've done so much, for so long, with so little,
> that we are now qualified to do something with nothing.

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