evil@linux-vooh:~/workspace/IRCBot> gcc --help Usage: gcc [options] file... Options: -pass-exit-codes Exit with highest error code from a phase --help Display this information --target-help Display target specific command line options (Use '-v --help' to display command line options of sub-processes) -dumpspecs Display all of the built in spec strings -dumpversion Display the version of the compiler -dumpmachine Display the compiler's target processor -print-search-dirs Display the directories in the compiler's search path -print-libgcc-file-name Display the name of the compiler's companion library -print-file-name= Display the full path to library -print-prog-name= Display the full path to compiler component -print-multi-directory Display the root directory for versions of libgcc -print-multi-lib Display the mapping between command line options and multiple library search directories -print-multi-os-directory Display the relative path to OS libraries -Wa, Pass comma-separated on to the assembler -Wp, Pass comma-separated on to the preprocessor -Wl, Pass comma-separated on to the linker -Xassembler Pass on to the assembler -Xpreprocessor Pass on to the preprocessor -Xlinker Pass on to the linker -combine Pass multiple source files to compiler at once -save-temps Do not delete intermediate files -pipe Use pipes rather than intermediate files -time Time the execution of each subprocess -specs= Override built-in specs with the contents of -std= Assume that the input sources are for --sysroot= Use as the root directory for headers for headers and libraries -B Add to the compiler's search paths -b Run gcc for target , if installed -V Run gcc version number , if installed -v Display the programs invoked by the compiler -### Like -v but options quoted and commands not executed -E Preprocess only; do not compile, assemble or link -S Compile only; do not assemble or link -c Compile and assemble, but do not link -o Place the output into -x Specify the language of the following input files Permissible languages include: c c++ assembler none 'none' means revert to the default behavior of guessing the language based on the file's extension Options starting with -g, -f, -m, -O, -W, or --param are automatically passed on to the various sub-processes invoked by gcc. In order to pass other options on to these processes the -W options must be used. For bug reporting instructions, please see: .