Perhaps it should be documented somewhere, but where? To be honest, if I had to implement a GCC FE, I wouldn't even know where to start looking. BTW, don't look to Fortran for a good example of how to handle options. Fortran duplicates the common machinery, which does a lot more than the Fortran implementation. The same applies to diagnostics, don't follow Fortran, use the common machinery. In general, the C++ FE is probably the most modern and the best example to look at. On 30 June 2013 22:17, Philip Herron <redbrain@xxxxxxxxxxx> wrote: > Thanks so much i just never noticed this lang hook just needed to > return the option_lang_mask and now its all fine. > > Thanks > > --Phil > > On 28 June 2013 19:46, Manuel López-Ibáñez <lopezibanez@xxxxxxxxx> wrote: >>> I have been having trouble with my lang.opts i keep getting: >>> >>> hilips-MacBook:gccpy-build redbrain$ gccpy -O0 -fdump-tree-gimple t.py >>> -o t.o -fpy-dump-dot -fpy-gen-main >>> gpy1: warning: command line option =91-fpy-dump-dot=92 is valid for Python >>> but not for [enabled by default] >>> gpy1: warning: command line option =91-fpy-gen-main=92 is valid for Python >>> but not for [enabled by default] >>> gpy1: warning: command line option >>> =91-L/usr/local/lib/gcc/x86_64-apple-darwin12.3.0/4.8.0=92 is valid for >>> Go/Python but not for [enabled by default] >>> gpy1: warning: command line option >>> =91-L/usr/local/lib/gcc/x86_64-apple-darwin12.3.0/4.8.0/../../..=92 is >>> valid for Go/Python but not for [enabled by default] >> >> Does your python_handle_option returns true for recognized options? >> >> When you build, in the build/gcc/ directory there is an options.c >> file. Does it mention Python in lang_names? Do the options have the >> CL_Python flag? >> >> Have you defined a hook that returns the lang_mask for Python? See Fortran: >> >> fortran/f95-lang.c:#define LANG_HOOKS_OPTION_LANG_MASK gfc_option_lang_mask >> >> BTW, you don't need to re-define Common options unless you want to >> completely change their meaning, which normally is a bad idea. >> Normally you can just re-use the results returned by the common >> options machinery for your own purposes. >> >> Cheers, >> >> Manuel.
