On Wed, Jul 25, 2012 at 5:02 PM, William Roberts <bill.c.roberts@xxxxxxxxx> wrote: > Yes it is in the assembler I should have mentioned it, is their a > separate mailing list for that? binutils@xxxxxxxxxxxxxx. See http://sourceware.org/binutils/ . > I need a way to conditionally add ".arch_extension sec" based on some > environment preprocessor flag. > > Currently I am currently doing something like this: > #if __GNUC__ >= 4 && __GNUC_MINOR__ >= 6 > .arch_extension sec > #endif > > Which I know isn't completely what I want. It's going to depend on the assembler version, which is logically independent of the compiler version. Unfortunately I don't know of a way to test the assembler version, either in the compiler or in the assembler. If you were writing a GNU tool I would recommend testing the assembler feature in your configure script. Ian
