> If the scripts are generating incorrect options.c, are they taking > lang-specs.h files into account or is this purely lang.opt (and/or > whatever else feeds the awk scripts) that is at fault? There may be new > things to do in lang.opt for example. Options are global to the compiler (there is only one cl_options structure), so different FEs can share the same option as long as the options have identical properties, including documentation (although the internal behaviour may differ). For "-P", the Fortran FE will report with --help the documentation of the C FE. > ---------------------------------------------------------------------- > -no-line-commands C ObjC C++ ObjC++ Alias(P) > -no-line-commands Fortran Alias(P) > ... > P C ObjC C++ ObjC++ Do not generate #line directives > P Fortran > P vhdl Joined -P<dir> Add <dir> to the end of the vhdl library path > ---------------------------------------------------------------------- Here, the vhdl FE is smashing the documentation and properties of the -P in other FEs. I think in GCC 4.8, this is detected and an error or warning emitted when building. If not, please file a bug. Ideally, GCC should have FE-specific cl_option structures, so each FE will only see their own cl_option and the common one. Unfortunately, there is no one working on it and I don't think there will be in the near future. GCC needs help. If you are interested in making this work, please volunteer to make it happen. Cheers, Manuel.
