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Re: Coverage for Fortran compiler macros.

From: Eric Blake
Subject: Re: Coverage for Fortran compiler macros.
Date: Fri, 02 Jul 2010 13:49:27 -0600
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On 06/28/2010 04:15 PM, Ralf Wildenhues wrote:
>>> This patch is a test balloon really.  So far tested with GCC and one
>>> Intel version on GNU/Linux, and Sun suite on Solaris.  It would need
>>> lots more testing, but I don't have access to many Fortran compilers.
>>> I wouldn't be surprised to see a fair amount of failures with them,
>>> consider yourself warned.
>> I'm okay with releasing 2.66 in order to widen the feedback path of more
>> Fortran setups - we can deal with failures as they are reported (this
>> change isn't adding regressions, just exposing any long-time issues).
>> So yes, please apply.  And thanks for the effort, since I am rather
>> illiterate at the moment when it comes to Fortran.

> With the patch below, I've tested some version of GNU, Sun, IBM XL, and
> Intel on at least one system each.  I consider that fairly encouraging.
> The other compilers' flags are taken from documentation only.
> OTOH, I'd love to hear from Fortran experts about a better tests that
> fails free-form-assuming compilers.  The comment seems to work with all
> compilers tested, but I'm not sure that's a given.

Well, I've gone ahead and applied your patch, and hope to get 2.66 out
the door real soon now to widen the coverage.

>     New macro AC_FC_FIXEDFORM, improved AC_FC_FREEFORM, coverage.
>     * lib/autoconf/fortran.m4 (_AC_FC_DIALECT_YEAR): Fix typo in
>     comment.
>     (AC_FC_FREEFORM): Update list of known options for Sun, HP,
>     Lahey/Fujitsu Fortran compilers.  Use M4 quoting consistently.
>     (AC_FC_FIXEDFORM): New macro.
>     * tests/ (AC_FC_DUMMY_MAIN usage, AC_FC_MAIN usage):
>     Use AC_FC_FIXEDFORM, to avoid testsuite failure with FC=xlf95.
>     (AC_FC_FIXEDFORM with AC_FC_SRCEXT): New tests.
>     * tests/ No need to exclude AC_FC_FREEFORM, it uses
>     * doc/autoconf.texi (Fortran Compiler): Document it.
>     * NEWS: Update.

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library

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