Troubleshooting in the GCC C++ compiler
GCC provides several help and diagnostic options to assist in troubleshooting problems with the compilation process. The options that you can use to ease your troubleshooting process are explained in the upcoming sections.
Help for command-line options
Use the help options to get a summary of the top-level GCC command-line options. The command for this is as follows:
g++ --help
To display a complete list of the options for GCC and its associated programs, such as the GNU Linker and GNU Assembler, use the preceding help option with the verbose (-v) option:
g++ -v --help
The complete list of options produced by the preceding command is extremely long—you may wish to go through it using the more command or redirect ...
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