1 ; Options for the Fortran 95 front end.
2 ; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
3 ; Free Software Foundation, Inc.
5 ; This file is part of GCC.
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
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
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/>.
21 ; See the GCC internals manual for a description of this file's format.
23 ; Please try to keep this file in ASCII collating order.
32 Fortran Separate Alias(A)
35 Fortran Joined Alias(A)
44 Fortran Separate Alias(D)
47 Fortran Joined Alias(D)
53 Fortran Separate Alias(d)
56 Fortran Joined Alias(d)
62 Fortran Separate Alias(I)
65 Fortran Joined Alias(I)
67 -include-directory-after
68 Fortran Separate Alias(idirafter)
70 -include-directory-after=
71 Fortran Joined Alias(idirafter)
74 Fortran Separate Alias(iprefix)
77 Fortran JoinedOrMissing Alias(iprefix)
83 Fortran Alias(nostdinc)
86 Fortran Separate Alias(o)
89 Fortran Joined Alias(o)
92 Fortran Undocumented Alias(E)
94 -print-missing-file-dependencies
101 Fortran Separate Alias(U)
104 Fortran Joined Alias(U)
113 Fortran NoDriverArg Separate Alias(MD)
115 -write-user-dependencies
116 Fortran NoDriverArg Separate Alias(MMD)
119 Fortran Joined Separate
131 Fortran Joined Separate
142 Fortran Joined Separate
146 Fortran Joined Separate
147 -J<directory> Put MODULE files in 'directory'
154 Fortran Separate NoDriverArg
158 Fortran Joined Separate
170 Fortran Separate NoDriverArg
178 Fortran Joined Separate
182 Fortran Joined Separate
190 Fortran Joined Separate
199 Warn about possible aliasing of dummy arguments
203 Warn about alignment of COMMON blocks
207 Warn about missing ampersand in continued character constants
211 Warn about creation of array temporaries
213 Wcharacter-truncation
215 Warn about truncated character expressions
223 Warn about most implicit conversions
225 Wfunction-elimination
227 Warn about function call elimination
231 Warn about calls with implicit interface
235 Warn about called procedures not explicitly declared
239 Warn about truncated source lines
243 Warn on intrinsics not part of the selected standard
247 Warn about real-literal-constants with 'q' exponent-letter
255 Warn about \"suspicious\" constructs
259 Permit nonconforming uses of the tab character
263 Warn about underflow of numerical constant expressions
267 Warn if a user-procedure has the same name as an intrinsic
269 Wunused-dummy-argument
271 Warn about unused dummy arguments.
274 Fortran Negative(nocpp)
278 Fortran Joined Negative(nocpp) Undocumented
279 ; Internal option generated by specs from -cpp.
282 Fortran Negative(cpp)
283 Disable preprocessing
287 ; Documented in common.opt
289 faggressive-function-elimination
291 Eliminate multiple function invokations also for impure functions
295 Enable alignment of COMMON blocks
298 Fortran RejectNegative
299 All intrinsics procedures are available regardless of selected standard
301 fallow-leading-underscore
303 ; For internal use only: allow the first character of symbol names to be an underscore
307 Do not treat local variables and COMMON blocks as if they were named in SAVE statements
311 Specify that backslash in string introduces an escape character
315 Produce a backtrace when a runtime error is encountered
318 Fortran RejectNegative Joined UInteger
319 -fblas-matmul-limit=<n> Size of the smallest matrix for which matmul will use BLAS
321 fcheck-array-temporaries
323 Produce a warning at runtime if a array temporary has been created for a procedure argument
326 Fortran RejectNegative
327 Use big-endian format for unformatted files
329 fconvert=little-endian
330 Fortran RejectNegative
331 Use little-endian format for unformatted files
334 Fortran RejectNegative
335 Use native format for unformatted files
338 Fortran RejectNegative
339 Swap endianness for unformatted files
343 Use the Cray Pointer extension
346 Fortran RejectNegative
347 Ignore 'D' in column one in fixed form
350 Fortran RejectNegative
351 Treat lines with 'D' in column one as comments
355 Set the default double precision kind to an 8 byte wide type
359 Set the default integer kind to an 8 byte wide type
363 Set the default real kind to an 8 byte wide type
367 Allow dollar signs in entity names
371 Does nothing. Preserved for backward compatibility.
373 fdump-fortran-original
375 Display the code tree after parsing
377 fdump-fortran-optimized
379 Display the code tree after front end optimization
383 Display the code tree after parsing; deprecated option
387 Specify that an external BLAS library should be used for matmul calls on large-size arrays
391 Use f2c calling convention
394 Fortran RejectNegative
395 Assume that the source file is fixed form
398 Fortran RejectNegative
399 Interpret any INTEGER(4) as an INTEGER(8)
401 fintrinsic-modules-path
402 Fortran RejectNegative Joined Separate
403 Specify where to find the compiled intrinsic modules
405 ffixed-line-length-none
406 Fortran RejectNegative
407 Allow arbitrary character line width in fixed mode
410 Fortran RejectNegative Joined UInteger
411 -ffixed-line-length-<n> Use n as character line width in fixed mode
414 Fortran RejectNegative JoinedOrMissing
415 -ffpe-trap=[...] Stop on following floating point exceptions
418 Fortran RejectNegative
419 Assume that the source file is free form
421 ffree-line-length-none
422 Fortran RejectNegative
423 Allow arbitrary character line width in free mode
426 Fortran RejectNegative Joined UInteger
427 -ffree-line-length-<n> Use n as character line width in free mode
431 Enable front end optimization
435 Specify that no implicit typing is allowed, unless overridden by explicit IMPLICIT statements
438 Fortran RejectNegative Joined UInteger
439 -finit-character=<n> Initialize local character variables to ASCII value n
442 Fortran RejectNegative Joined
443 -finit-integer=<n> Initialize local integer variables to n
447 Initialize local variables to zero (from g77)
450 Fortran RejectNegative Joined
451 -finit-logical=<true|false> Initialize local logical variables
454 Fortran RejectNegative Joined
455 -finit-real=<zero|nan|inf|-inf> Initialize local real variables
457 fmax-array-constructor=
458 Fortran RejectNegative Joined UInteger
459 -fmax-array-constructor=<n> Maximum number of objects in an array constructor
461 fmax-identifier-length=
462 Fortran RejectNegative Joined UInteger
463 -fmax-identifier-length=<n> Maximum identifier length
465 fmax-subrecord-length=
466 Fortran RejectNegative Joined UInteger
467 -fmax-subrecord-length=<n> Maximum length for subrecords
470 Fortran RejectNegative Joined UInteger
471 -fmax-stack-var-size=<n> Size in bytes of the largest array that will be put on the stack
475 Put all local arrays on stack.
479 Set default accessibility of module entities to PRIVATE.
487 Try to lay out derived types as compactly as possible
495 Protect parentheses in expressions
499 Enable range checking during compilation
502 Fortran RejectNegative
503 Interpret any REAl(4) as a REAL(8)
506 Fortran RejectNegative
507 Interpret any REAL(4) as a REAL(10)
510 Fortran RejectNegative
511 Interpret any REAL(4) as a REAl(16)
514 Fortran RejectNegative
515 Interpret any REAL(8) as a REAL(4)
518 Fortran RejectNegative
519 Interpret any REAL(8) as a REAL(10)
522 Fortran RejectNegative
523 Interpret any REAL(8) as a REAl(16)
527 Reallocate the LHS in assignments
530 Fortran RejectNegative
531 Use a 4-byte record marker for unformatted files
534 Fortran RejectNegative
535 Use an 8-byte record marker for unformatted files
539 Allocate local variables on the stack to allow indirect recursion
543 Copy array sections into a contiguous block on procedure entry
546 Fortran RejectNegative JoinedOrMissing
547 -fcoarray=[...] Specify which coarray parallelization should be used
550 Fortran RejectNegative JoinedOrMissing
551 -fcheck=[...] Specify which runtime checks are to be performed
555 Append a second underscore if the name already contains an underscore
558 Fortran Var(flag_short_enums)
563 Apply negative sign to zero values
567 Append underscores to externally visible names
571 Compile all program units at once and check all interfaces
578 Fortran Joined Separate
582 Fortran Joined Separate
586 Fortran Joined Separate
590 Fortran Joined Separate
594 Fortran Joined Separate
598 Fortran Joined Separate
606 Fortran Joined Separate
607 ; Documented in common.opt
611 Statically link the GNU Fortran helper library (libgfortran)
615 Conform to the ISO Fortran 2003 standard
619 Conform to the ISO Fortran 2008 standard
623 Conform to the ISO Fortran 2008 standard including TS 29113
627 Conform to the ISO Fortran 95 standard
631 Conform to nothing in particular
635 Accept extensions to support legacy code
645 ; This comment is to ensure we retain the blank line above.