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The following options have been added to the menuselect "Compiler Flags" section... CODE_COVERAGE: The ability to enable code coverage via the `--enable-coverage` configure flag has existed for many years but changing it requires re-running ./configure which is painfully slow. With this commit, you can now enable and disable it via menuselect. Setting this option adds the `-ftest-coverage` and `-fprofile-arcs` flags on the gcc and ld command lines. It also sets DONT_OPTIMIZE. Note: If you use the `--enable-coverage` configure flag, you can't turn it off via menuselect so choose one method and stick to it. KEEP_FRAME_POINTERS: This option sets `-fno-omit-frame-pointers` on the gcc command line which can facilitate debugging with 'gdb' and tracing with 'perf'. Unlike CODE_COVERAGE, this option doesn't depend on optimization being disabled. It does however conflict with COMPILE_DOUBLE.