Dominik Vogt wrote: > + opt_esa_zarch = (has_highgprs) ? " -mzarch" : " -mesa";
This will force -mesa on old machines *even in -m64 mode*, which is wrong and will cause compilation to fail. > -/* Defaulting rules. */ > #ifdef DEFAULT_TARGET_64BIT > -#define DRIVER_SELF_SPECS \ This completely removes use of DRIVER_SELF_SPECS for defaulting, which I introduced back here: https://gcc.gnu.org/ml/gcc-patches/2003-06/msg03369.html The reason for using DRIVER_SELF_SPECS as described there is to make sure we use compatible flags for compiler, assembler and linker in all cases, even if some of those flags result from defaulting rules. If we don't do that, we rely on those components agreeing exactly in how to default for unspecified options; for example, we want to give the correct -march flag to the assembler as an additional verification to detect compiler bugs where the compiler erroneously generates an incorrect instruction for that architecture. Bye, Ulrich -- Dr. Ulrich Weigand GNU/Linux compilers and toolchain ulrich.weig...@de.ibm.com
