--- firefox-107.0/build/moz.configure/toolchain.configure.old 2022-11-27 00:43:21.686745320 +0000 +++ firefox-107.0/build/moz.configure/toolchain.configure 2022-11-27 00:43:55.202798351 +0000 @@ -1805,7 +1805,7 @@ # The oldest versions of supported compilers default to DWARF-4, but # newer versions may default to DWARF-5 or newer (e.g. clang 14), which # Valgrind doesn't support. Force-use DWARF-4. - return ("-gdwarf-4",) + return ("",) option(env="MOZ_DEBUG_FLAGS", nargs=1, help="Debug compiler flags")