build-aux/gcc-warning.spec

   1 # options to filter out, and why
   2 --all-warnings                          alias for -Wall
   3 --extra-warnings                        alias for -Wextra
   4 -W                                      alias for -Wextra
   5 -Wabi                                   this is now a no-op
   6 -Wabi-tag                               c++
   7 -Wabi=                                  c++
   8 -Wabsolute-value                        enabled by -Wextra
   9 -Waddress                               enabled by -Wall
  10 -Waddress-of-packed-member              default
  11 -Waggregate-return                      obsolescent
  12 -Waggressive-loop-optimizations         default
  13 -Waliasing                              fortran
  14 -Walign-commons                         fortran
  15 -Waligned-new=[none|global|all]         c++
  16 -Walloc-size-larger-than=<bytes>        defaults to PTRDIFF_MAX
  17 -Walloc-zero                            Gnulib fixes this problem
  18 -Walloca                                we like alloca in small doses
  19 -Walloca-larger-than=<number>           FIXME: choose something sane?
  20 -Wampersand                             fortran
  21 -Wanalyzer-double-fclose                enabled by -fanalyzer
  22 -Wanalyzer-double-free                  enabled by -fanalyzer
  23 -Wanalyzer-exposure-through-output-file enabled by -fanalyzer
  24 -Wanalyzer-file-leak                    enabled by -fanalyzer
  25 -Wanalyzer-free-of-non-heap             enabled by -fanalyzer
  26 -Wanalyzer-malloc-leak                  enabled by -fanalyzer
  27 -Wanalyzer-null-argument                enabled by -fanalyzer
  28 -Wanalyzer-null-dereference             enabled by -fanalyzer
  29 -Wanalyzer-possible-null-argument       enabled by -fanalyzer
  30 -Wanalyzer-possible-null-dereference    enabled by -fanalyzer
  31 -Wanalyzer-stale-setjmp-buffer          implied by -fanalyzer
  32 -Wanalyzer-tainted-array-index          FIXME maybe? too much noise
  33 -Wanalyzer-too-complex                  enabled by -fanalyzer
  34 -Wanalyzer-unsafe-call-within-signal-handler    enabled by -fanalyzer
  35 -Wanalyzer-use-after-free               enabled by -fanalyzer
  36 -Wanalyzer-use-of-pointer-in-stale-stack-frame  enabled by -fanalyzer
  37 -Warray-bounds                          covered by -Warray-bounds=
  38 -Warray-bounds=<0,2>                    handled specially by gl_MANYWARN_ALL_GCC
  39 -Warray-temporaries                     fortran
  40 -Wassign-intercept                      objc/objc++
  41 -Wattribute-alias                       covered by -Wattribute-alias=2
  42 -Wattribute-alias=<0,2>                 handled specially by gl_MANYWARN_ALL_GCC
  43 -Wattribute-warning                     default
  44 -Wattributes                            default
  45 -Wbool-compare                          enabled by -Wall
  46 -Wbool-operation                        enabled by -Wall
  47 -Wbuiltin-declaration-mismatch          default
  48 -Wbuiltin-macro-redefined               default
  49 -Wc++-compat                            only useful for code meant to be compiled by a C++ compiler
  50 -Wc++0x-compat                          c++
  51 -Wc++11-compat                          c++
  52 -Wc++14-compat                          c++
  53 -Wc++17-compat                          c++
  54 -Wc++1z-compat                          c++
  55 -Wc++20-compat                          c++
  56 -Wc++2a-compat                          c++
  57 -Wc-binding-type                        fortran
  58 -Wc11-c2x-compat                        c compatibility
  59 -Wc90-c99-compat                        c compatibility
  60 -Wc99-c11-compat                        c compatibility
  61 -Wcannot-profile                        default
  62 -Wcast-align                            enabled by -Wcast-align=strict
  63 -Wcast-function-type                    enabled by -Wextra
  64 -Wcast-qual                             FIXME maybe? too much noise; encourages bad changes
  65 -Wcast-result                           D
  66 -Wcatch-value                           c++
  67 -Wcatch-value=<0,3>                     c++
  68 -Wchar-subscripts                       enabled by -Wall
  69 -Wcharacter-truncation                  fortran
  70 -Wchkp                                  deprecated
  71 -Wclass-conversion                      c++ and objc++
  72 -Wclass-memaccess                       c++
  73 -Wclobbered                             enabled by -Wextra
  74 -Wcomma-subscript                       c++ and objc++
  75 -Wcomment                               enabled by -Wall
  76 -Wcomments                              alias for -Wcomment
  77 -Wcompare-reals                         fortran
  78 -Wconditionally-supported               c++ and objc++
  79 -Wconversion                            FIXME maybe? too much noise; encourages bad changes
  80 -Wconversion-extra                      fortran
  81 -Wconversion-null                       c++ and objc++
  82 -Wcoverage-mismatch                     default
  83 -Wcpp                                   default
  84 -Wctor-dtor-privacy                     c++
  85 -Wdangling-else                         enabled by -Wparentheses
  86 -Wdeclaration-after-statement           needed only for pre-C99, so obsolete
  87 -Wdelete-incomplete                     c++ and objc++
  88 -Wdelete-non-virtual-dtor               c++
  89 -Wdeprecated                            default
  90 -Wdeprecated-copy                       c++ and objc++
  91 -Wdeprecated-copy-dtor                  c++ and objc++
  92 -Wdeprecated-declarations               default
  93 -Wdesignated-init                       default
  94 -Wdiscarded-array-qualifiers            default
  95 -Wdiscarded-qualifiers                  default
  96 -Wdo-subscript                          fortran
  97 -Wdiv-by-zero                           default
  98 -Wduplicate-decl-specifier              enabled by -Wall
  99 -Weffc++                                c++
 100 -Wempty-body                            enabled by -Wextra
 101 -Wenum-compare                          enabled by -Wall
 102 -Wenum-conversion                       enabled by -Wextra
 103 -Wendif-labels                          default
 104 -Werror-implicit-function-declaration   deprecated
 105 -Wexpansion-to-defined                  enabled by -Wextra
 106 -Wextra-semi                            c++
 107 -Wfloat-conversion                      FIXME maybe? borderline.  some will want this
 108 -Wfloat-equal                           FIXME maybe? borderline.  some will want this
 109 -Wformat                                covered by -Wformat=2
 110 -Wformat-contains-nul                   default
 111 -Wformat-diag                           enabled by -Wformat=2
 112 -Wformat-extra-args                     enabled by -Wformat=2
 113 -Wformat-nonliteral                     enabled by -Wformat=2
 114 -Wformat-overflow<0,2>                  gcc --help=warnings artifact
 115 -Wformat-overflow=<0,2>                 handled specially by gl_MANYWARN_ALL_GCC
 116 -Wformat-security                       enabled by -Wformat=2
 117 -Wformat-truncation                     covered by -Wformat-truncation=2
 118 -Wformat-truncation=<0,2>               handled specially by gl_MANYWARN_ALL_GCC
 119 -Wformat-y2k                            enabled by -Wformat=2
 120 -Wformat-zero-length                    enabled by -Wformat=2
 121 -Wformat=<0,2>                          gcc --help=warnings artifact
 122 -Wframe-address                         enabled by -Wall
 123 -Wframe-larger-than=<byte-size>         FIXME: choose something sane?
 124 -Wfree-nonheap-object                   default
 125 -Wfunction-elimination                  fortran
 126 -Whsa                                   default
 127 -Wif-not-aligned                        default
 128 -Wignored-attributes                    default
 129 -Wignored-qualifiers                    enabled by -Wextra
 130 -Wimplicit                              enabled by -Wall
 131 -Wimplicit-fallthrough                  covered by -Wimplicit-fallthrough=2
 132 -Wimplicit-fallthrough=<0,5>            handled specially by gl_MANYWARN_ALL_GCC
 133 -Wimplicit-function-declaration         enabled by -Wimplicit
 134 -Wimplicit-int                          enabled by -Wimplicit
 135 -Wimplicit-interface                    fortran
 136 -Wimplicit-procedure                    fortran
 137 -Winaccessible-base                     c++ and objc++
 138 -Wincompatible-pointer-types            default
 139 -Winherited-variadic-ctor               c++
 140 -Winit-list-lifetime                    c++ and objc++
 141 -Wint-conversion                        default
 142 -Wint-in-bool-context                   enabled by -Wall
 143 -Wint-to-pointer-cast                   default
 144 -Winteger-division                      fortran
 145 -Wintrinsic-shadow                      fortran
 146 -Wintrinsics-std                        fortran
 147 -Winvalid-memory-model                  default
 148 -Winvalid-offsetof                      c++ and objc++
 149 -Wjump-misses-init                      only useful for code meant to be compiled by a C++ compiler
 150 -Wlarger-than-                          gcc --help=warnings artifact
 151 -Wlarger-than=<byte-size>               FIXME: choose something sane?
 152 -Wline-truncation                       fortran
 153 -Wliteral-suffix                        c++ and objc++
 154 -Wlogical-not-parentheses               enabled by -Wall
 155 -Wlong-long                             obsolescent
 156 -Wlto-type-mismatch                     c++ and objc++
 157 -Wmain                                  enabled by -Wall
 158 -Wmaybe-uninitialized                   enabled by -Wall or -Wextra
 159 -Wmemset-elt-size                       enabled by -Wall
 160 -Wmemset-transposed-args                enabled by -Wall
 161 -Wmisleading-indentation                enabled by -Wall
 162 -Wmismatched-tags                       c++ and objc++
 163 -Wmissing-attributes                    enabled by -Wall
 164 -Wmissing-braces                        enabled by -Wall
 165 -Wmissing-field-initializers            enabled by -Wextra
 166 -Wmissing-format-attribute              obsolescent
 167 -Wmissing-noreturn                      obsolescent
 168 -Wmissing-parameter-type                enabled by -Wextra
 169 -Wmissing-profile                       default
 170 -Wmultichar                             default
 171 -Wmultiple-inheritance                  c++ and objc++
 172 -Wmultistatement-macros                 enabled by -Wall
 173 -Wnamespaces                            c++
 174 -Wnarrowing                             enabled by -Wall
 175 -Wno-alloc-size-larger-than             see -Walloc-size-larger-than
 176 -Wno-alloca-larger-than                 see -Walloca-larger-than
 177 -Wno-frame-larger-than                  see -Wframe-larger-than
 178 -Wno-larger-than                        see -Wlarger-than
 179 -Wno-stack-usage                        see -Wstack-usage
 180 -Wno-vla-larger-than                    see -Wvla-larger-than
 181 -Wnoexcept                              c++
 182 -Wnoexcept-type                         c++
 183 -Wnon-template-friend                   c++
 184 -Wnon-virtual-dtor                      c++
 185 -Wnonnull                               enabled by -Wall or -Wformat
 186 -Wnonnull-compare                       enabled by -Wall
 187 -Wnormalized                            default
 188 -Wnormalized=[none|id|nfc|nfkc]         defaults to nfc
 189 -Wodr                                   default
 190 -Wold-style-cast                        c++ and objc++
 191 -Wold-style-declaration                 enabled by -Wextra
 192 -Woverflow                              default
 193 -Woverloaded-virtual                    c++
 194 -Woverride-init                         enabled by -Wextra
 195 -Woverride-init-side-effects            c++ and objc++
 196 -Woverwrite-recursive                   fortran
 197 -Wpacked-bitfield-compat                default
 198 -Wpacked-not-aligned                    enabled by -Wall
 199 -Wpadded                                FIXME maybe?  warns about "stabil" member in /usr/include/bits/timex.h
 200 -Wparentheses                           enabled by -Wall
 201 -Wpedantic                              FIXME: too strict?
 202 -Wpessimizing-move                      c++ and objc++
 203 -Wplacement-new                         c++
 204 -Wplacement-new=<0,2>                   c++
 205 -Wpmf-conversions                       c++ and objc++
 206 -Wpointer-compare                       default
 207 -Wpointer-sign                          enabled by -Wall
 208 -Wpointer-to-int-cast                   default
 209 -Wpragmas                               default
 210 -Wprio-ctor-dtor                        c++
 211 -Wproperty-assign-default               objc++
 212 -Wprotocol                              objc++
 213 -Wpsabi                                 default
 214 -Wreal-q-constant                       fortran
 215 -Wrealloc-lhs                           fortran
 216 -Wrealloc-lhs-all                       fortran
 217 -Wredundant-decls                       FIXME maybe? many _gl_cxxalias_dummy FPs
 218 -Wredundant-move                        c++ and objc++
 219 -Wredundant-tags                        c++ and objc++
 220 -Wregister                              c++ and objc++
 221 -Wreorder                               c++ and objc++
 222 -Wrestrict                              enabled by -Wall
 223 -Wreturn-local-addr                     default
 224 -Wreturn-type                           enabled by -Wall
 225 -Wscalar-storage-order                  default
 226 -Wselector                              objc and objc++
 227 -Wsequence-point                        enabled by -Wall
 228 -Wshadow-compatible-local               covered by -Wshadow
 229 -Wshadow-ivar                           objc
 230 -Wshadow-local                          covered by -Wshadow
 231 -Wshadow=compatible-local               covered by -Wshadow
 232 -Wshadow=global                         covered by -Wshadow
 233 -Wshadow=local                          covered by -Wshadow
 234 -Wshift-count-negative                  default
 235 -Wshift-count-overflow                  default
 236 -Wshift-negative-value                  enabled by -Wextra
 237 -Wshift-overflow                        covered by -Wshift-overflow=2
 238 -Wshift-overflow=<0,2>                  gcc --help=warnings artifact
 239 -Wsign-compare                          enabled by -Wextra
 240 -Wsign-conversion                       FIXME maybe? borderline.  some will want this
 241 -Wsign-promo                            c++ and objc++
 242 -Wsized-deallocation                    c++ and objc++
 243 -Wsizeof-array-argument                 default
 244 -Wsizeof-pointer-div                    enabled by -Wall
 245 -Wsizeof-pointer-memaccess              enabled by -Wall
 246 -Wstack-usage=<byte-size>               FIXME: choose something sane?
 247 -Wstrict-aliasing                       enabled by -Wall
 248 -Wstrict-aliasing=<0,3>                 FIXME: choose something sane?
 249 -Wstrict-null-sentinel                  c++ and objc++
 250 -Wstrict-overflow=<0,5>                 FIXME: choose something sane?
 251 -Wstrict-selector-match                 objc and objc++
 252 -Wstring-compare                        enabled by -Wextra
 253 -Wstringop-overflow                     covered by -Wstringop-overflow=2
 254 -Wstringop-overflow=<0,4>               defaults to 2
 255 -Wstringop-truncation                   default
 256 -Wsubobject-linkage                     c++ and objc++
 257 -Wsuggest-override                      c++ and objc++
 258 -Wsurprising                            fortran
 259 -Wswitch                                enabled by -Wall
 260 -Wswitch-bool                           default
 261 -Wswitch-default                        https://lists.gnu.org/r/bug-gnulib/2018-05/msg00179.html
 262 -Wswitch-enum                           FIXME maybe? borderline.  some will want this
 263 -Wswitch-outside-range                  default
 264 -Wswitch-unreachable                    default
 265 -Wsynth                                 deprecated
 266 -Wtabs                                  fortran
 267 -Wtarget-lifetime                       fortran
 268 -Wtautological-compare                  enabled by -Wall
 269 -Wtemplates                             c++ and objc++
 270 -Wterminate                             c++ and objc++
 271 -Wtraditional                           obsolescent
 272 -Wtraditional-conversion                obsolescent
 273 -Wtrigraphs                             enabled by -Wall
 274 -Wtype-limits                           enabled by -Wextra
 275 -Wundeclared-selector                   objc and objc++
 276 -Wundef                                 FIXME maybe? too many false positives
 277 -Wundefined-do-loop                     fortran
 278 -Wunderflow                             fortran
 279 -Wunreachable-code                      obsolescent no-op
 280 -Wunsuffixed-float-constants            triggers warning in gnulib's timespec.h
 281 -Wunused                                enabled by -Wall
 282 -Wunused-but-set-parameter              enabled by -Wunused
 283 -Wunused-but-set-variable               enabled by -Wunused
 284 -Wunused-const-variable                 covered by -Wunused-const-variable=2
 285 -Wunused-const-variable=<0,2>           gcc --help=warnings artifact
 286 -Wunused-dummy-argument                 fortran
 287 -Wunused-function                       enabled by -Wunused
 288 -Wunused-label                          enabled by -Wunused
 289 -Wunused-local-typedefs                 enabled by -Wunused
 290 -Wunused-parameter                      enabled by -Wunused
 291 -Wunused-result                         enabled by -Wunused
 292 -Wunused-value                          enabled by -Wunused
 293 -Wunused-variable                       enabled by -Wunused
 294 -Wuse-without-only                      fortran
 295 -Wuseless-cast                          c++ and objc++
 296 -Wvarargs                               default
 297 -Wvirtual-inheritance                   c++
 298 -Wvirtual-move-assign                   c++
 299 -Wvla-larger-than=<number>              handled specially by gl_MANYWARN_ALL_GCC
 300 -Wvolatile                              c++ and objc++
 301 -Wvolatile-register-var                 enabled by -Wall
 302 -Wzero-as-null-pointer-constant         c++ and objc++
 303 -Wzero-length-bounds                    enabled by -Wall
 304 -Wzerotrip                              fortran
 305 -frequire-return-statement              go