Dealing with compilers that pretend to be GCC

[Paul Eggert]

On 01/19/12 06:24, Ludovic Courtès wrote:
> I don’t see what can be done on “our” side (perhaps Autoconf’s feature
> test could be strengthened, but how?)

Which feature test would that be?

I certainly understand the problem, and have run into issues where
clang fools 'configure' into thinking a GCC feature is present when
it isn't, but testing whether a compiler is GCC is not really the
Autoconf Way.

A 'configure' script is supposed to check for behavior, not identity.
If the compiler supports the features needed, then generally speaking
a 'configure' script shouldn't care whether the compiler is truly GCC.