diff options
| -rw-r--r-- | Source/cmTryCompileCommand.cxx | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/Source/cmTryCompileCommand.cxx b/Source/cmTryCompileCommand.cxx index 328c170..df06871 100644 --- a/Source/cmTryCompileCommand.cxx +++ b/Source/cmTryCompileCommand.cxx @@ -145,27 +145,30 @@ int cmTryCompileCommand::CoreTryCompileCode( cmSystemTools::ReportLastSystemError(""); return -1; } - + std::string source = argv[2]; - const char* lang = mf->GetCMakeInstance()->GetGlobalGenerator()->GetLanguageFromExtension( - cmSystemTools::GetFilenameExtension(source).c_str()); + std::string ext = cmSystemTools::GetFilenameExtension(source); + const char* lang = (mf->GetCMakeInstance()->GetGlobalGenerator() + ->GetLanguageFromExtension(ext.c_str())); if(lang) { fprintf(fout, "PROJECT(CMAKE_TRY_COMPILE %s)\n", lang); } else { + cmOStringStream err; + err << "Unknown extension \"" << ext << "\" for file \"" + << source << "\". TRY_COMPILE only works for enabled languages.\n" + << "Currently enabled languages are:"; std::vector<std::string> langs; mf->GetCMakeInstance()->GetGlobalGenerator()->GetEnabledLanguages(langs); - std::string msg = "TRY_COMPILE only works for enabled languages files," - "\nCurrently enabled languages are:\n"; for(std::vector<std::string>::iterator l = langs.begin(); l != langs.end(); ++l) { - msg += *l; - msg += " "; + err << " " << *l; } - cmSystemTools::Error("Unknown file format for file: ", source.c_str(), msg.c_str()); + err << "\nSee PROJECT command for help enabling other languages."; + cmSystemTools::Error(err.str().c_str()); return -1; } std::string langFlags = "CMAKE_"; |