Re: AC_C_RESTRICT

[Eric Blake]

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According to Jeff Squyres on 3/16/2009 4:54 PM:
> This mail could probably be considered a followup to this thread
> introduced by Rolf Vandevaart from Sun back in Jan 2009:
> 
>   http://lists.gnu.org/archive/html/bug-autoconf/2009-01/msg00056.html

> - Or should there be a new AC_RESTRICT test that makes a solution for
> both the C and C++ compilers?

That's the goal for autoconf 2.64.

> It seems that AC_C_RESTRICT can sometimes find "restrict" for the PGI C
> compiler, but it can sometimes find "__restrict".  Both of these values
> work for the PGI C compiler, but only "__restrict" works for the PGI C++
> compiler.  The reasons for AC's difference in answers appear to do with
> the PGI C compiler installation and the version of the GCC/glibc
> installed, distro/version, ...etc.  I didn't delve too deeply to figure
> out why this happened.  See the thread starting here for more details:
> 
>     http://www.open-mpi.org/community/lists/users/2009/03/8402.php

Thanks for the pointer.  Can you please verify whether this test, recently
added in autoconf.git, correctly detects that your situation is not yet
accommodated?

http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=ee55d77

It is the testsuite followup to the earlier patch:

http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=aa30765

but that patch was indeed Sun specific.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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