Re: AC_C_RESTRICT

[Ralf Wildenhues]

* Jeff Squyres wrote on Mon, Mar 16, 2009 at 11:54:13PM CET:
>
> 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 Autoconf test tries __restrict first, at least the current code
does.  Can you please find the bits in the config.log file that show
why the test fails with __restrict but later passes with restrict,
for the PGI C compiler?

> - should there be an AC_CXX_RESTRICT test?  E.g., perhaps the output of 
> AC_C_RESTRICT and AC_CXX_RESTRICT tests would be protected with  
> appropriate #if's that determine if you're compiling in C or C++.

I don't see the need for that yet: both Sun and PGI compiler suites have
a common denominator; only if you want to mix-and-match compilers from
different suites, then we need to go all the way.

Thanks,
Ralf