[petsc-dev] defaulting gnu compilers on Apple

[Satish Balay]

On Thu, 31 Oct 2013, Barry Smith wrote:

> > 4. Missed mentioning: '/usr/bin/gcc' does not accept GNU-gcc options.
> 
>    So does configure at least answer no when you do compiles.isGNU?

I can't verify directly - but looking at what 'gcc -v' gives - isGNU()
should return 'false'.


Also we have isClang() that does a 'clang --help' and is looking for
'Emit Clang AST'. Perhaps that will return 'true' for /usr/bin/gcc.

Satish