If this is the wrong forum for this question, please let me know where to send it. I am working on a project that mixes C and C++. The problem that I have is that there is only one CPPFLAGS for both compilers. Why is this the case? It would be nice if automake/autoconf provided a CXXPPFLAGS variable so that the flags could be set independently. This is not a problem if you are only using gcc with g++. However, for performance reasons, I need to use g++ with the IBM xlc compiler. Does anyone have a work-around or suggestion? Is this something that could be changed in the autoconf package??? -- Dr.-Ing. Benjamin Karl Bergen CCS-2 Continuum Dynamics Los Alamos National Laboratory _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf