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SubjectRe: why test for "__GNUC__"?
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On Sun, 29 Oct 2006 10:48:43 EST, "Robert P. J. Day" said:
> On Sun, 29 Oct 2006, Alexey Dobriyan wrote:
>
> > On Sun, Oct 29, 2006 at 07:44:18AM -0500, Robert P. J. Day wrote:
> > > p.s. is there, in fact, any part of the kernel source tree that has a
> > > preprocessor directive to identify the use of ICC? just curious.
> >
> > Please, do
> >
> > ls include/linux/compiler-*
>
> but according to compiler.h:
>
> /* Intel compiler defines __GNUC__. So we will overwrite implementations
> * coming from above header files here
> */
>
> so even ICC will define __GNUC__, which means that testing for
> __GNUC__ is *still*, under the circumstances, redundant, isn't that
> right?

The Intel compiler started defining __GNUC__ fairly recently (within the
last 2-3 years). Most likely the tests date from long ago and far away,
before it did so.
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