1 ; Options for the Fortran 95 front end.
2 ; Copyright (C) 2003-2013 Free Software Foundation, Inc.
4 ; This file is part of GCC.
6 ; GCC is free software; you can redistribute it and/or modify it under
7 ; the terms of the GNU General Public License as published by the Free
8 ; Software Foundation; either version 3, or (at your option) any later
11 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 ; You should have received a copy of the GNU General Public License
17 ; along with GCC; see the file COPYING3. If not see
18 ; <http://www.gnu.org/licenses/>.
20 ; See the GCC internals manual for a description of this file's format.
22 ; Please try to keep this file in ASCII collating order.
31 Fortran Separate Alias(A)
34 Fortran Joined Alias(A)
43 Fortran Separate Alias(D)
46 Fortran Joined Alias(D)
52 Fortran Separate Alias(d)
55 Fortran Joined Alias(d)
61 Fortran Separate Alias(I)
64 Fortran Joined Alias(I)
66 -include-directory-after
67 Fortran Separate Alias(idirafter)
69 -include-directory-after=
70 Fortran Joined Alias(idirafter)
73 Fortran Separate Alias(iprefix)
76 Fortran JoinedOrMissing Alias(iprefix)
82 Fortran Alias(nostdinc)
85 Fortran Separate Alias(o)
88 Fortran Joined Alias(o)
91 Fortran Undocumented Alias(E)
93 -print-missing-file-dependencies
100 Fortran Separate Alias(U)
103 Fortran Joined Alias(U)
112 Fortran NoDriverArg Separate Alias(MD)
114 -write-user-dependencies
115 Fortran NoDriverArg Separate Alias(MMD)
118 Fortran Joined Separate
130 Fortran Joined Separate
141 Fortran Joined Separate
145 Fortran Joined Separate
146 -J<directory> Put MODULE files in 'directory'
153 Fortran Separate NoDriverArg
157 Fortran Joined Separate
169 Fortran Separate NoDriverArg
177 Fortran Joined Separate
181 Fortran Joined Separate
189 Fortran Joined Separate
198 Warn about possible aliasing of dummy arguments
202 Warn about alignment of COMMON blocks
206 Warn about missing ampersand in continued character constants
210 Warn about creation of array temporaries
214 Warn if the type of a variable might be not interoperable with C
216 Wcharacter-truncation
218 Warn about truncated character expressions
222 Warn about equality comparisons involving REAL or COMPLEX expressions
230 Warn about most implicit conversions
234 Print extra (possibly unwanted) warnings
236 Wfunction-elimination
238 Warn about function call elimination
242 Warn about calls with implicit interface
246 Warn about called procedures not explicitly declared
250 Warn about truncated source lines
254 Warn on intrinsics not part of the selected standard
258 Warn about real-literal-constants with 'q' exponent-letter
262 Warn when a left-hand-side array variable is reallocated
266 Warn when a left-hand-side variable is reallocated
270 Warn if the pointer in a pointer assignment might outlive its target
278 Warn about \"suspicious\" constructs
282 Permit nonconforming uses of the tab character
286 Warn about underflow of numerical constant expressions
290 Warn if a user-procedure has the same name as an intrinsic
292 Wunused-dummy-argument
294 Warn about unused dummy arguments.
298 Warn about zero-trip DO loops
301 Fortran Negative(nocpp)
305 Fortran Joined Negative(nocpp) Undocumented NoDWARFRecord
306 ; Internal option generated by specs from -cpp.
309 Fortran Negative(cpp)
310 Disable preprocessing
314 ; Documented in common.opt
316 faggressive-function-elimination
318 Eliminate multiple function invokations also for impure functions
322 Enable alignment of COMMON blocks
325 Fortran RejectNegative
326 All intrinsics procedures are available regardless of selected standard
328 fallow-leading-underscore
330 ; For internal use only: allow the first character of symbol names to be an underscore
334 Do not treat local variables and COMMON blocks as if they were named in SAVE statements
338 Specify that backslash in string introduces an escape character
342 Produce a backtrace when a runtime error is encountered
345 Fortran RejectNegative Joined UInteger
346 -fblas-matmul-limit=<n> Size of the smallest matrix for which matmul will use BLAS
348 fcheck-array-temporaries
350 Produce a warning at runtime if a array temporary has been created for a procedure argument
353 Fortran RejectNegative
354 Use big-endian format for unformatted files
356 fconvert=little-endian
357 Fortran RejectNegative
358 Use little-endian format for unformatted files
361 Fortran RejectNegative
362 Use native format for unformatted files
365 Fortran RejectNegative
366 Swap endianness for unformatted files
370 Use the Cray Pointer extension
373 Fortran RejectNegative
374 Ignore 'D' in column one in fixed form
377 Fortran RejectNegative
378 Treat lines with 'D' in column one as comments
382 Set the default double precision kind to an 8 byte wide type
386 Set the default integer kind to an 8 byte wide type
390 Set the default real kind to an 8 byte wide type
394 Allow dollar signs in entity names
398 Does nothing. Preserved for backward compatibility.
400 fdump-fortran-original
402 Display the code tree after parsing
404 fdump-fortran-optimized
406 Display the code tree after front end optimization
410 Display the code tree after parsing; deprecated option
414 Specify that an external BLAS library should be used for matmul calls on large-size arrays
418 Use f2c calling convention
421 Fortran RejectNegative
422 Assume that the source file is fixed form
425 Fortran RejectNegative
426 Interpret any INTEGER(4) as an INTEGER(8)
428 fintrinsic-modules-path
429 Fortran RejectNegative Separate
430 Specify where to find the compiled intrinsic modules
432 fintrinsic-modules-path=
433 Fortran RejectNegative Joined
434 Specify where to find the compiled intrinsic modules
436 ffixed-line-length-none
437 Fortran RejectNegative
438 Allow arbitrary character line width in fixed mode
441 Fortran RejectNegative Joined UInteger
442 -ffixed-line-length-<n> Use n as character line width in fixed mode
445 Fortran RejectNegative JoinedOrMissing
446 -ffpe-trap=[...] Stop on following floating point exceptions
449 Fortran RejectNegative JoinedOrMissing
450 -ffpe-summary=[...] Print summary of floating point exceptions
453 Fortran RejectNegative
454 Assume that the source file is free form
456 ffree-line-length-none
457 Fortran RejectNegative
458 Allow arbitrary character line width in free mode
461 Fortran RejectNegative Joined UInteger
462 -ffree-line-length-<n> Use n as character line width in free mode
466 Enable front end optimization
470 Specify that no implicit typing is allowed, unless overridden by explicit IMPLICIT statements
473 Fortran RejectNegative Joined UInteger
474 -finit-character=<n> Initialize local character variables to ASCII value n
477 Fortran RejectNegative Joined
478 -finit-integer=<n> Initialize local integer variables to n
482 Initialize local variables to zero (from g77)
485 Fortran RejectNegative Joined
486 -finit-logical=<true|false> Initialize local logical variables
489 Fortran RejectNegative Joined
490 -finit-real=<zero|nan|inf|-inf> Initialize local real variables
492 fmax-array-constructor=
493 Fortran RejectNegative Joined UInteger
494 -fmax-array-constructor=<n> Maximum number of objects in an array constructor
496 fmax-identifier-length=
497 Fortran RejectNegative Joined UInteger
498 -fmax-identifier-length=<n> Maximum identifier length
500 fmax-subrecord-length=
501 Fortran RejectNegative Joined UInteger
502 -fmax-subrecord-length=<n> Maximum length for subrecords
505 Fortran RejectNegative Joined UInteger
506 -fmax-stack-var-size=<n> Size in bytes of the largest array that will be put on the stack
510 Put all local arrays on stack.
514 Set default accessibility of module entities to PRIVATE.
522 Try to lay out derived types as compactly as possible
530 Protect parentheses in expressions
534 Enable range checking during compilation
537 Fortran RejectNegative
538 Interpret any REAL(4) as a REAL(8)
541 Fortran RejectNegative
542 Interpret any REAL(4) as a REAL(10)
545 Fortran RejectNegative
546 Interpret any REAL(4) as a REAL(16)
549 Fortran RejectNegative
550 Interpret any REAL(8) as a REAL(4)
553 Fortran RejectNegative
554 Interpret any REAL(8) as a REAL(10)
557 Fortran RejectNegative
558 Interpret any REAL(8) as a REAL(16)
562 Reallocate the LHS in assignments
565 Fortran RejectNegative
566 Use a 4-byte record marker for unformatted files
569 Fortran RejectNegative
570 Use an 8-byte record marker for unformatted files
574 Allocate local variables on the stack to allow indirect recursion
578 Copy array sections into a contiguous block on procedure entry
581 Fortran RejectNegative JoinedOrMissing
582 -fcoarray=[...] Specify which coarray parallelization should be used
585 Fortran RejectNegative JoinedOrMissing
586 -fcheck=[...] Specify which runtime checks are to be performed
590 Append a second underscore if the name already contains an underscore
593 Fortran Var(flag_short_enums)
598 Apply negative sign to zero values
602 Append underscores to externally visible names
606 Does nothing. Preserved for backward compatibility.
613 Fortran Joined Separate
617 Fortran Joined Separate
621 Fortran Joined Separate
625 Fortran Joined Separate
629 Fortran Joined Separate
633 Fortran Joined Separate
641 Fortran Joined Separate
642 ; Documented in common.opt
646 Statically link the GNU Fortran helper library (libgfortran)
650 Conform to the ISO Fortran 2003 standard
654 Conform to the ISO Fortran 2008 standard
658 Conform to the ISO Fortran 2008 standard including TS 29113
662 Conform to the ISO Fortran 95 standard
666 Conform to nothing in particular
670 Accept extensions to support legacy code
680 ; This comment is to ensure we retain the blank line above.