gcc/fortran/lang.opt

   1 ; Options for the Fortran 95 front end.
   2 ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
   3 ; Free Software Foundation, Inc.
   4 ;
   5 ; This file is part of GCC.
   6 ;
   7 ; GCC is free software; you can redistribute it and/or modify it under
   8 ; the terms of the GNU General Public License as published by the Free
   9 ; Software Foundation; either version 3, or (at your option) any later
  10 ; version.
  11 ;
  12 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 ; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 ; for more details.
  16 ;
  17 ; You should have received a copy of the GNU General Public License
  18 ; along with GCC; see the file COPYING3.  If not see
  19 ; <http://www.gnu.org/licenses/>.
  20
  21 ; See the GCC internals manual for a description of this file's format.
  22
  23 ; Please try to keep this file in ASCII collating order.
  24
  25 Language
  26 Fortran
  27
  28 -all-warnings
  29 Fortran Alias(Wall)
  30
  31 -assert
  32 Fortran Separate Alias(A)
  33
  34 -assert=
  35 Fortran Joined Alias(A)
  36
  37 -comments
  38 Fortran Alias(C)
  39
  40 -comments-in-macros
  41 Fortran Alias(CC)
  42
  43 -define-macro
  44 Fortran Separate Alias(D)
  45
  46 -define-macro=
  47 Fortran Joined Alias(D)
  48
  49 -dependencies
  50 Fortran Alias(M)
  51
  52 -dump
  53 Fortran Separate Alias(d)
  54
  55 -dump=
  56 Fortran Joined Alias(d)
  57
  58 -include-barrier
  59 Fortran Alias(I, -)
  60
  61 -include-directory
  62 Fortran Separate Alias(I)
  63
  64 -include-directory=
  65 Fortran Joined Alias(I)
  66
  67 -include-directory-after
  68 Fortran Separate Alias(idirafter)
  69
  70 -include-directory-after=
  71 Fortran Joined Alias(idirafter)
  72
  73 -include-prefix
  74 Fortran Separate Alias(iprefix)
  75
  76 -include-prefix=
  77 Fortran JoinedOrMissing Alias(iprefix)
  78
  79 -no-line-commands
  80 Fortran Alias(P)
  81
  82 -no-standard-includes
  83 Fortran Alias(nostdinc)
  84
  85 -output
  86 Fortran Separate Alias(o)
  87
  88 -output=
  89 Fortran Joined Alias(o)
  90
  91 -preprocess
  92 Fortran Undocumented Alias(E)
  93
  94 -print-missing-file-dependencies
  95 Fortran Alias(MG)
  96
  97 -trace-includes
  98 Fortran Alias(H)
  99
 100 -undefine-macro
 101 Fortran Separate Alias(U)
 102
 103 -undefine-macro=
 104 Fortran Joined Alias(U)
 105
 106 -user-dependencies
 107 Fortran Alias(MM)
 108
 109 -verbose
 110 Fortran Alias(v)
 111
 112 -write-dependencies
 113 Fortran NoDriverArg Separate Alias(MD)
 114
 115 -write-user-dependencies
 116 Fortran NoDriverArg Separate Alias(MMD)
 117
 118 A
 119 Fortran Joined Separate
 120 ; Documented in C
 121
 122 C
 123 Fortran
 124 ; Documented in C
 125
 126 CC
 127 Fortran
 128 ; Documented in C
 129
 130 D
 131 Fortran Joined Separate
 132 ; Documented in C
 133
 134 E
 135 Fortran Undocumented
 136
 137 H
 138 Fortran
 139 ; Documented in C
 140
 141 I
 142 Fortran Joined Separate
 143 ; Documented in C
 144
 145 J
 146 Fortran Joined Separate
 147 -J<directory>   Put MODULE files in 'directory'
 148
 149 M
 150 Fortran
 151 ; Documented in C
 152
 153 MD
 154 Fortran Separate NoDriverArg
 155 ; Documented in C
 156
 157 MF
 158 Fortran Joined Separate
 159 ; Documented in C
 160
 161 MG
 162 Fortran
 163 ; Documented in C
 164
 165 MM
 166 Fortran
 167 ; Documented in C
 168
 169 MMD
 170 Fortran Separate NoDriverArg
 171 ; Documented in C
 172
 173 MP
 174 Fortran
 175 ; Documented in C
 176
 177 MT
 178 Fortran Joined Separate
 179 ; Documented in C
 180
 181 MQ
 182 Fortran Joined Separate
 183 ; Documented in C
 184
 185 P
 186 Fortran
 187 ; Documented in C
 188
 189 U
 190 Fortran Joined Separate
 191 ; Documented in C
 192
 193 Wall
 194 Fortran
 195 ; Documented in C
 196
 197 Waliasing
 198 Fortran Warning
 199 Warn about possible aliasing of dummy arguments
 200
 201 Walign-commons
 202 Fortran Warning
 203 Warn about alignment of COMMON blocks
 204
 205 Wampersand
 206 Fortran Warning
 207 Warn about missing ampersand in continued character constants
 208
 209 Warray-temporaries
 210 Fortran Warning
 211 Warn about creation of array temporaries
 212
 213 Wcharacter-truncation
 214 Fortran Warning
 215 Warn about truncated character expressions
 216
 217 Wconversion
 218 Fortran Warning
 219 ; Documented in C
 220
 221 Wconversion-extra
 222 Fortran Warning
 223 Warn about most implicit conversions
 224
 225 Wimplicit-interface
 226 Fortran Warning
 227 Warn about calls with implicit interface
 228
 229 Wimplicit-procedure
 230 Fortran Warning
 231 Warn about called procedures not explicitly declared
 232
 233 Wline-truncation
 234 Fortran Warning
 235 Warn about truncated source lines
 236
 237 Wintrinsics-std
 238 Fortran Warning
 239 Warn on intrinsics not part of the selected standard
 240
 241 Wreturn-type
 242 Fortran Warning
 243 ; Documented in C
 244
 245 Wsurprising
 246 Fortran Warning
 247 Warn about \"suspicious\" constructs
 248
 249 Wtabs
 250 Fortran Warning
 251 Permit nonconforming uses of the tab character
 252
 253 Wunderflow
 254 Fortran Warning
 255 Warn about underflow of numerical constant expressions
 256
 257 Wintrinsic-shadow
 258 Fortran Warning
 259 Warn if a user-procedure has the same name as an intrinsic
 260
 261 Wunused-dummy-argument
 262 Fortran Warning
 263 Warn about unused dummy arguments.
 264
 265 cpp
 266 Fortran Negative(nocpp)
 267 Enable preprocessing
 268
 269 cpp=
 270 Fortran Joined Negative(nocpp) Undocumented
 271 ; Internal option generated by specs from -cpp.
 272
 273 nocpp
 274 Fortran Negative(cpp)
 275 Disable preprocessing
 276
 277 d
 278 Fortran Joined
 279 ; Documented in common.opt
 280
 281 falign-commons
 282 Fortran
 283 Enable alignment of COMMON blocks
 284
 285 fall-intrinsics
 286 Fortran RejectNegative
 287 All intrinsics procedures are available regardless of selected standard
 288
 289 fallow-leading-underscore
 290 Fortran Undocumented
 291 ; For internal use only: allow the first character of symbol names to be an underscore
 292
 293 fautomatic
 294 Fortran
 295 Do not treat local variables and COMMON blocks as if they were named in SAVE statements
 296
 297 fbackslash
 298 Fortran
 299 Specify that backslash in string introduces an escape character
 300
 301 fbacktrace
 302 Fortran
 303 Produce a backtrace when a runtime error is encountered
 304
 305 fblas-matmul-limit=
 306 Fortran RejectNegative Joined UInteger
 307 -fblas-matmul-limit=<n> Size of the smallest matrix for which matmul will use BLAS
 308
 309 fcheck-array-temporaries
 310 Fortran
 311 Produce a warning at runtime if a array temporary has been created for a procedure argument
 312
 313 fconvert=big-endian
 314 Fortran RejectNegative
 315 Use big-endian format for unformatted files
 316
 317 fconvert=little-endian
 318 Fortran RejectNegative
 319 Use little-endian format for unformatted files
 320
 321 fconvert=native
 322 Fortran RejectNegative
 323 Use native format for unformatted files
 324
 325 fconvert=swap
 326 Fortran RejectNegative
 327 Swap endianness for unformatted files
 328
 329 fcray-pointer
 330 Fortran
 331 Use the Cray Pointer extension
 332
 333 fd-lines-as-code
 334 Fortran RejectNegative
 335 Ignore 'D' in column one in fixed form
 336
 337 fd-lines-as-comments
 338 Fortran RejectNegative
 339 Treat lines with 'D' in column one as comments
 340
 341 fdefault-double-8
 342 Fortran
 343 Set the default double precision kind to an 8 byte wide type
 344
 345 fdefault-integer-8
 346 Fortran
 347 Set the default integer kind to an 8 byte wide type
 348
 349 fdefault-real-8
 350 Fortran
 351 Set the default real kind to an 8 byte wide type
 352
 353 fdollar-ok
 354 Fortran
 355 Allow dollar signs in entity names
 356
 357 fdump-core
 358 Fortran
 359 Dump a core file when a runtime error occurs
 360
 361 fdump-fortran-original
 362 Fortran
 363 Display the code tree after parsing
 364
 365 fdump-fortran-optimized
 366 Fortran
 367 Display the code tree after front end optimization
 368
 369 fdump-parse-tree
 370 Fortran
 371 Display the code tree after parsing; deprecated option
 372
 373 fexternal-blas
 374 Fortran
 375 Specify that an external BLAS library should be used for matmul calls on large-size arrays
 376
 377 ff2c
 378 Fortran
 379 Use f2c calling convention
 380
 381 ffixed-form
 382 Fortran RejectNegative
 383 Assume that the source file is fixed form
 384
 385 fintrinsic-modules-path
 386 Fortran RejectNegative Joined Separate
 387 Specify where to find the compiled intrinsic modules
 388
 389 ffixed-line-length-none
 390 Fortran RejectNegative
 391 Allow arbitrary character line width in fixed mode
 392
 393 ffixed-line-length-
 394 Fortran RejectNegative Joined UInteger
 395 -ffixed-line-length-<n> Use n as character line width in fixed mode
 396
 397 ffpe-trap=
 398 Fortran RejectNegative JoinedOrMissing
 399 -ffpe-trap=[...]        Stop on following floating point exceptions
 400
 401 ffree-form
 402 Fortran RejectNegative
 403 Assume that the source file is free form
 404
 405 ffree-line-length-none
 406 Fortran RejectNegative
 407 Allow arbitrary character line width in free mode
 408
 409 ffree-line-length-
 410 Fortran RejectNegative Joined UInteger
 411 -ffree-line-length-<n>  Use n as character line width in free mode
 412
 413 fimplicit-none
 414 Fortran
 415 Specify that no implicit typing is allowed, unless overridden by explicit IMPLICIT statements
 416
 417 finit-character=
 418 Fortran RejectNegative Joined UInteger
 419 -finit-character=<n>    Initialize local character variables to ASCII value n
 420
 421 finit-integer=
 422 Fortran RejectNegative Joined
 423 -finit-integer=<n>      Initialize local integer variables to n
 424
 425 finit-local-zero
 426 Fortran
 427 Initialize local variables to zero (from g77)
 428
 429 finit-logical=
 430 Fortran RejectNegative Joined
 431 -finit-logical=<true|false>     Initialize local logical variables
 432
 433 finit-real=
 434 Fortran RejectNegative Joined
 435 -finit-real=<zero|nan|inf|-inf> Initialize local real variables
 436
 437 fmax-array-constructor=
 438 Fortran RejectNegative Joined UInteger
 439 -fmax-array-constructor=<n>     Maximum number of objects in an array constructor
 440
 441 fmax-identifier-length=
 442 Fortran RejectNegative Joined UInteger
 443 -fmax-identifier-length=<n>     Maximum identifier length
 444
 445 fmax-subrecord-length=
 446 Fortran RejectNegative Joined UInteger
 447 -fmax-subrecord-length=<n>      Maximum length for subrecords
 448
 449 fmax-stack-var-size=
 450 Fortran RejectNegative Joined UInteger
 451 -fmax-stack-var-size=<n>        Size in bytes of the largest array that will be put on the stack
 452
 453 fmodule-private
 454 Fortran
 455 Set default accessibility of module entities to PRIVATE.
 456
 457 fopenmp
 458 Fortran
 459 ; Documented in C
 460
 461 fpack-derived
 462 Fortran
 463 Try to lay out derived types as compactly as possible
 464
 465 fpreprocessed
 466 Fortran
 467 ; Documented in C
 468
 469 fprotect-parens
 470 Fortran
 471 Protect parentheses in expressions
 472
 473 frange-check
 474 Fortran
 475 Enable range checking during compilation
 476
 477 frealloc-lhs
 478 Fortran
 479 Reallocate the LHS in assignments
 480
 481 frecord-marker=4
 482 Fortran RejectNegative
 483 Use a 4-byte record marker for unformatted files
 484
 485 frecord-marker=8
 486 Fortran RejectNegative
 487 Use an 8-byte record marker for unformatted files
 488
 489 frecursive
 490 Fortran
 491 Allocate local variables on the stack to allow indirect recursion
 492
 493 frepack-arrays
 494 Fortran
 495 Copy array sections into a contiguous block on procedure entry
 496
 497 fcoarray=
 498 Fortran RejectNegative JoinedOrMissing
 499 -fcoarray=[...] Specify which coarray parallelization should be used
 500
 501 fcheck=
 502 Fortran RejectNegative JoinedOrMissing
 503 -fcheck=[...]   Specify which runtime checks are to be performed
 504
 505 fsecond-underscore
 506 Fortran
 507 Append a second underscore if the name already contains an underscore
 508
 509 fshort-enums
 510 Fortran Var(flag_short_enums)
 511 ; Documented in C
 512
 513 fsign-zero
 514 Fortran
 515 Apply negative sign to zero values
 516
 517 funderscoring
 518 Fortran
 519 Append underscores to externally visible names
 520
 521 fwhole-file
 522 Fortran
 523 Compile all program units at once and check all interfaces
 524
 525 fworking-directory
 526 Fortran
 527 ; Documented in C
 528
 529 idirafter
 530 Fortran Joined Separate
 531 ; Documented in C
 532
 533 imultilib
 534 Fortran Joined Separate
 535 ; Documented in C
 536
 537 iprefix
 538 Fortran Joined Separate
 539 ; Documented in C
 540
 541 iquote
 542 Fortran Joined Separate
 543 ; Documented in C
 544
 545 isysroot
 546 Fortran Joined Separate
 547 ; Documented in C
 548
 549 isystem
 550 Fortran Joined Separate
 551 ; Documented in C
 552
 553 nostdinc
 554 Fortran
 555 ; Documented in C
 556
 557 o
 558 Fortran Joined Separate
 559 ; Documented in common.opt
 560
 561 static-libgfortran
 562 Fortran
 563 Statically link the GNU Fortran helper library (libgfortran)
 564
 565 std=f2003
 566 Fortran
 567 Conform to the ISO Fortran 2003 standard
 568
 569 std=f2008
 570 Fortran
 571 Conform to the ISO Fortran 2008 standard
 572
 573 std=f95
 574 Fortran
 575 Conform to the ISO Fortran 95 standard
 576
 577 std=gnu
 578 Fortran
 579 Conform to nothing in particular
 580
 581 std=legacy
 582 Fortran
 583 Accept extensions to support legacy code
 584
 585 undef
 586 Fortran
 587 ; Documented in C
 588
 589 v
 590 Fortran
 591 ; Documented in C
 592
 593 ; This comment is to ensure we retain the blank line above.