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