Re: Checking for minor-minor GCC version in testsuite

[Andrew Cagney <cagney@gnu.org>]

> Andrew Cagney writes:
> 
>>> Is there a way to check the minor-minor GCC version?
> 
> 
> gcc provides __GNUC_PATCHLEVEL__ but the test suite doesn't use it.
> 
> In lib/compiler.c and lib/compiler.cc you could edit:
> 
>   -set compiler_info [join {gcc __GNUC__ __GNUC_MINOR__} -]
>   +set compiler_info [join {gcc __GNUC__ __GNUC_MINOR__ __GNUC_PATCH_LEVEL__} -]
> 
> Test before-and-after; for extra style, change the existing 39 calls
> to test_compiler_info:
> 
>   gcc-2-*  gcc-2-*-*
>   gcc-*-*  gcc-*-*-*
>   et cetera
> 
> One gotcha: __GNUC_PATCHLEVEL__ is not available in gcc 2.95.3.  I think
> this is okay because the compiler_info string will just expand to
> "gcc-2-95-__GNUC_PATCHLEVEL__" so as long as no one is looking to
> distinguish between gcc 2.95.2 and gcc 2.95.3 it's okay.  Tests for
> "gcc-2-*" or "gcc-2-*-*" ought to work.  This gotcha will need a comment
> though.  (The gcc doco for 3.3.3 says that __GNUC_PATCHLEVEL__ was
> introduced with gcc 3.0 and also works in gcc 2.96 and gcc 2.97).
> 
> You could do this, or file a PR and I'll do it.

I'll do this - will need to audit calls that test compiler info.
> 
>>> The problem, present in gcc 3.3.2 appears to be fixed in gcc 3.3.3 (or 
>>> at least Red Hat's variant).
> 
> 
> Or you could just cop out and treat all of gcc-3-3 as broken.

That leaves me with the KPASSs :-(

Andrew