Hello, Chris Lattner <clatt...@apple.com> skribis:
> On Jan 20, 2012, at 5:24 PM, Jonathan Wakely <jwakely....@gmail.com> wrote: > >> On 21 January 2012 00:32, Vincent Lefevre wrote: >>> On 2012-01-20 23:28:07 +0000, Jonathan Wakely wrote: >>>> May I politely suggest that this is the wrong place to complain about >>>> other compilers pretending to be GCC :) >>> >>> I think that's the fault of GCC, which should have defined a macro >>> for each extension. >> >> And what about the fact other compilers haven't defined such a macro >> for each extension they implement, whether it comes from GCC or not, >> is that GCC's fault too? > > If fact, some do: > http://clang.llvm.org/docs/LanguageExtensions.html#feature_check That seems like a very useful approach to solve the problem. The docs say that ‘__has_builtin’ & co. are macros. What do they expand to? Thanks, Ludo’.
