| # options to filter out, and why |
| --all-warnings alias for -Wall |
| --extra-warnings alias for -Wextra |
| -frequire-return-statement go |
| -Waggregate-return obsolescent |
| -Waliasing fortran |
| -Walign-commons fortran |
| -Wampersand fortran |
| -Warray-bounds covered by -Warray-bounds= |
| -Warray-bounds= handled specially by gl_MANYWARN_ALL_GCC |
| -Warray-temporaries fortran |
| -Wassign-intercept objc/objc++ |
| -Wbad-function-cast c |
| -Wc++0x-compat c++ compatibility |
| -Wc++11-compat c++ compatibility |
| -Wc++14-compat c++ compatibility |
| -Wc90-c99-compat c compatibility |
| -Wc99-c11-compat c compatibility |
| -Wcast-qual FIXME maybe? too much noise; encourages bad changes |
| -Wcast-result d |
| -Wc-binding-type fortran |
| -Wc++-compat FIXME maybe? borderline. some will want this |
| -Wcharacter-truncation fortran |
| -Wcompare-reals fortran |
| -Wconversion-extra fortran |
| -Wconversion FIXME maybe? too much noise; encourages bad changes |
| -Wdeclaration-after-statement FIXME: do not want. others may |
| -Wdesignated-init c |
| -Wdiscarded-array-qualifiers c |
| -Wdiscarded-qualifiers c |
| -Werror-implicit-function-declaration deprecated |
| -Wfloat-conversion FIXME maybe? borderline. some will want this |
| -Wfloat-equal FIXME maybe? borderline. some will want this |
| -Wformat covered by -Wformat=2 |
| -Wformat= gcc --help=warnings artifact |
| -Wframe-larger-than=<number> FIXME: choose something sane? |
| -Wfunction-elimination fortran |
| -Wimplicit c |
| -Wimplicit-function-declaration c |
| -Wimplicit-int c |
| -Wimplicit-interface fortran |
| -Wimplicit-procedure fortran |
| -Wincompatible-pointer-types c |
| -Wint-conversion c |
| -Winteger-division fortran |
| -Wintrinsic-shadow fortran |
| -Wintrinsics-std fortran |
| -Wjump-misses-init c |
| -Wlarger-than- gcc --help=warnings artifact |
| -Wlarger-than=<number> FIXME: choose something sane? |
| -Wline-truncation fortran |
| -Wlong-long obsolescent |
| -Wmissing-format-attribute obsolescent |
| -Wmissing-noreturn obsolescent |
| -Wmissing-parameter-type c |
| -Wmissing-prototypes c |
| -Wnested-externs c |
| -Wnormalized covered by -Wnormalized= |
| -Wnormalized=<none|id|nfc|nfkc> handled specially by gl_MANYWARN_ALL_GCC |
| -Wold-style-declaration c |
| -Wold-style-definition c |
| -Woverride-init c |
| -Wpadded FIXME maybe? warns about "stabil" member in /usr/include/bits/timex.h |
| -Wpedantic FIXME: too strict? |
| -Wpointer-sign c |
| -Wpointer-to-int-cast c |
| -Wproperty-assign-default objc++ |
| -Wprotocol objc++ |
| -Wrealloc-lhs-all fortran |
| -Wrealloc-lhs fortran |
| -Wreal-q-constant fortran |
| -Wredundant-decls FIXME maybe? many _gl_cxxalias_dummy FPs |
| -Wselector objc and objc++ |
| -Wshadow-ivar objc |
| -Wshift-overflow covered by -Wshift-overflow=2 |
| -Wshift-overflow= gcc --help=warnings artifact |
| -Wsign-compare FIXME maybe? borderline. some will want this |
| -Wsign-conversion FIXME maybe? borderline. some will want this |
| -Wstack-usage= FIXME: choose something sane? |
| -Wstrict-aliasing= FIXME: choose something sane? |
| -Wstrict-overflow= FIXME: choose something sane? |
| -Wstrict-prototypes c |
| -Wstrict-selector-match objc and objc++ |
| -Wsurprising fortran |
| -Wswitch-default https://lists.gnu.org/r/bug-gnulib/2018-05/msg00179.html |
| -Wswitch-enum FIXME maybe? borderline. some will want this |
| -Wsynth deprecated |
| -Wtabs fortran |
| -Wtarget-lifetime fortran |
| -Wtraditional-conversion obsolescent |
| -Wtraditional obsolescent |
| -Wundeclared-selector objc and objc++ |
| -Wundef FIXME maybe? too many false positives |
| -Wunderflow fortran |
| -Wunreachable-code obsolescent no-op |
| -Wunsuffixed-float-constants triggers warning in gnulib's timespec.h |
| -Wunused-const-variable covered by -Wunusec-const-variable=2 |
| -Wunused-const-variable= gcc --help=warnings artifact |
| -Wunused-dummy-argument fortran |
| -Wuse-without-only fortran |
| -Wzerotrip fortran |
