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
215 Warn if the type of a variable might be not interoperable with C
217 Wcharacter-truncation
219 Warn about truncated character expressions
227 Warn about most implicit conversions
229 Wfunction-elimination
231 Warn about function call elimination
235 Warn about calls with implicit interface
239 Warn about called procedures not explicitly declared
243 Warn about truncated source lines
247 Warn on intrinsics not part of the selected standard
251 Warn about real-literal-constants with 'q' exponent-letter
255 Warn when a left-hand-side array variable is reallocated
259 Warn when a left-hand-side variable is reallocated
267 Warn about \"suspicious\" constructs
271 Permit nonconforming uses of the tab character
275 Warn about underflow of numerical constant expressions
279 Warn if a user-procedure has the same name as an intrinsic
281 Wunused-dummy-argument
283 Warn about unused dummy arguments.
286 Fortran Negative(nocpp)
290 Fortran Joined Negative(nocpp) Undocumented
291 ; Internal option generated by specs from -cpp.
294 Fortran Negative(cpp)
295 Disable preprocessing
299 ; Documented in common.opt
301 faggressive-function-elimination
303 Eliminate multiple function invokations also for impure functions
307 Enable alignment of COMMON blocks
310 Fortran RejectNegative
311 All intrinsics procedures are available regardless of selected standard
313 fallow-leading-underscore
315 ; For internal use only: allow the first character of symbol names to be an underscore
319 Do not treat local variables and COMMON blocks as if they were named in SAVE statements
323 Specify that backslash in string introduces an escape character
327 Produce a backtrace when a runtime error is encountered
330 Fortran RejectNegative Joined UInteger
331 -fblas-matmul-limit=<n> Size of the smallest matrix for which matmul will use BLAS
333 fcheck-array-temporaries
335 Produce a warning at runtime if a array temporary has been created for a procedure argument
338 Fortran RejectNegative
339 Use big-endian format for unformatted files
341 fconvert=little-endian
342 Fortran RejectNegative
343 Use little-endian format for unformatted files
346 Fortran RejectNegative
347 Use native format for unformatted files
350 Fortran RejectNegative
351 Swap endianness for unformatted files
355 Use the Cray Pointer extension
358 Fortran RejectNegative
359 Ignore 'D' in column one in fixed form
362 Fortran RejectNegative
363 Treat lines with 'D' in column one as comments
367 Set the default double precision kind to an 8 byte wide type
371 Set the default integer kind to an 8 byte wide type
375 Set the default real kind to an 8 byte wide type
379 Allow dollar signs in entity names
383 Does nothing. Preserved for backward compatibility.
385 fdump-fortran-original
387 Display the code tree after parsing
389 fdump-fortran-optimized
391 Display the code tree after front end optimization
395 Display the code tree after parsing; deprecated option
399 Specify that an external BLAS library should be used for matmul calls on large-size arrays
403 Use f2c calling convention
406 Fortran RejectNegative
407 Assume that the source file is fixed form
410 Fortran RejectNegative
411 Interpret any INTEGER(4) as an INTEGER(8)
413 fintrinsic-modules-path
414 Fortran RejectNegative Joined Separate
415 Specify where to find the compiled intrinsic modules
417 ffixed-line-length-none
418 Fortran RejectNegative
419 Allow arbitrary character line width in fixed mode
422 Fortran RejectNegative Joined UInteger
423 -ffixed-line-length-<n> Use n as character line width in fixed mode
426 Fortran RejectNegative JoinedOrMissing
427 -ffpe-trap=[...] Stop on following floating point exceptions
430 Fortran RejectNegative
431 Assume that the source file is free form
433 ffree-line-length-none
434 Fortran RejectNegative
435 Allow arbitrary character line width in free mode
438 Fortran RejectNegative Joined UInteger
439 -ffree-line-length-<n> Use n as character line width in free mode
443 Enable front end optimization
447 Specify that no implicit typing is allowed, unless overridden by explicit IMPLICIT statements
450 Fortran RejectNegative Joined UInteger
451 -finit-character=<n> Initialize local character variables to ASCII value n
454 Fortran RejectNegative Joined
455 -finit-integer=<n> Initialize local integer variables to n
459 Initialize local variables to zero (from g77)
462 Fortran RejectNegative Joined
463 -finit-logical=<true|false> Initialize local logical variables
466 Fortran RejectNegative Joined
467 -finit-real=<zero|nan|inf|-inf> Initialize local real variables
469 fmax-array-constructor=
470 Fortran RejectNegative Joined UInteger
471 -fmax-array-constructor=<n> Maximum number of objects in an array constructor
473 fmax-identifier-length=
474 Fortran RejectNegative Joined UInteger
475 -fmax-identifier-length=<n> Maximum identifier length
477 fmax-subrecord-length=
478 Fortran RejectNegative Joined UInteger
479 -fmax-subrecord-length=<n> Maximum length for subrecords
482 Fortran RejectNegative Joined UInteger
483 -fmax-stack-var-size=<n> Size in bytes of the largest array that will be put on the stack
487 Put all local arrays on stack.
491 Set default accessibility of module entities to PRIVATE.
499 Try to lay out derived types as compactly as possible
507 Protect parentheses in expressions
511 Enable range checking during compilation
514 Fortran RejectNegative
515 Interpret any REAL(4) as a REAL(8)
518 Fortran RejectNegative
519 Interpret any REAL(4) as a REAL(10)
522 Fortran RejectNegative
523 Interpret any REAL(4) as a REAL(16)
526 Fortran RejectNegative
527 Interpret any REAL(8) as a REAL(4)
530 Fortran RejectNegative
531 Interpret any REAL(8) as a REAL(10)
534 Fortran RejectNegative
535 Interpret any REAL(8) as a REAL(16)
539 Reallocate the LHS in assignments
542 Fortran RejectNegative
543 Use a 4-byte record marker for unformatted files
546 Fortran RejectNegative
547 Use an 8-byte record marker for unformatted files
551 Allocate local variables on the stack to allow indirect recursion
555 Copy array sections into a contiguous block on procedure entry
558 Fortran RejectNegative JoinedOrMissing
559 -fcoarray=[...] Specify which coarray parallelization should be used
562 Fortran RejectNegative JoinedOrMissing
563 -fcheck=[...] Specify which runtime checks are to be performed
567 Append a second underscore if the name already contains an underscore
570 Fortran Var(flag_short_enums)
575 Apply negative sign to zero values
579 Append underscores to externally visible names
583 Compile all program units at once and check all interfaces
590 Fortran Joined Separate
594 Fortran Joined Separate
598 Fortran Joined Separate
602 Fortran Joined Separate
606 Fortran Joined Separate
610 Fortran Joined Separate
618 Fortran Joined Separate
619 ; Documented in common.opt
623 Statically link the GNU Fortran helper library (libgfortran)
627 Conform to the ISO Fortran 2003 standard
631 Conform to the ISO Fortran 2008 standard
635 Conform to the ISO Fortran 2008 standard including TS 29113
639 Conform to the ISO Fortran 95 standard
643 Conform to nothing in particular
647 Accept extensions to support legacy code
657 ; This comment is to ensure we retain the blank line above.