Getting 78 errors related to missing files in FliteTTS?

Code:
i686-apple-darwin10-gcc-4.2.1: /Users/{user}/Development/ProtonSDK/proton/RT3DApp/../shared/FliteTTS/lang/cmulex/cmu_lex.c: No such file or directory
i686-apple-darwin10-gcc-4.2.1: warning: '-x c' after last input file has no effect
i686-apple-darwin10-gcc-4.2.1: no input files
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.2 failed with exit code 1