William H. Schultz wrote: > setenv CPPFLAGS "-isysroot /Developer/SDKs/MacOSX10.3.9.sdk -arch ppc > -mcpu=G3 -mtune=G4"; CPPFLAGS sets the flags to the preprocessor, not sure if that (or CXXFLAGS) is what you wanted ? You should also set CXX=gcc-3.3 (Panther system compiler), instead of the regular gcc-4.0 compiler. --anders