1 ; Options for the Fortran 95 front end.
2 ; Copyright (C) 2003-2014 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
220 Wcharacter-truncation
222 Warn about truncated character expressions
226 Warn about equality comparisons involving REAL or COMPLEX expressions
234 Warn about most implicit conversions
238 Print extra (possibly unwanted) warnings
240 Wfunction-elimination
242 Warn about function call elimination
246 Warn about calls with implicit interface
250 Warn about called procedures not explicitly declared
254 Warn about truncated source lines
258 Warn on intrinsics not part of the selected standard
266 Warn about real-literal-constants with 'q' exponent-letter
270 Warn when a left-hand-side array variable is reallocated
274 Warn when a left-hand-side variable is reallocated
278 Warn if the pointer in a pointer assignment might outlive its target
286 Warn about \"suspicious\" constructs
290 Permit nonconforming uses of the tab character
294 Warn about underflow of numerical constant expressions
298 Warn if a user-procedure has the same name as an intrinsic
300 Wunused-dummy-argument
302 Warn about unused dummy arguments.
306 Warn about zero-trip DO loops
309 Fortran Negative(nocpp)
313 Fortran Joined Negative(nocpp) Undocumented NoDWARFRecord
314 ; Internal option generated by specs from -cpp.
317 Fortran Negative(cpp)
318 Disable preprocessing
322 ; Documented in common.opt
324 faggressive-function-elimination
326 Eliminate multiple function invokations also for impure functions
330 Enable alignment of COMMON blocks
333 Fortran RejectNegative
334 All intrinsics procedures are available regardless of selected standard
336 fallow-leading-underscore
338 ; For internal use only: allow the first character of symbol names to be an underscore
342 Do not treat local variables and COMMON blocks as if they were named in SAVE statements
346 Specify that backslash in string introduces an escape character
350 Produce a backtrace when a runtime error is encountered
353 Fortran RejectNegative Joined UInteger
354 -fblas-matmul-limit=<n> Size of the smallest matrix for which matmul will use BLAS
356 fcheck-array-temporaries
358 Produce a warning at runtime if a array temporary has been created for a procedure argument
361 Fortran RejectNegative
362 Use big-endian format for unformatted files
364 fconvert=little-endian
365 Fortran RejectNegative
366 Use little-endian format for unformatted files
369 Fortran RejectNegative
370 Use native format for unformatted files
373 Fortran RejectNegative
374 Swap endianness for unformatted files
378 Use the Cray Pointer extension
381 Fortran RejectNegative
382 Ignore 'D' in column one in fixed form
385 Fortran RejectNegative
386 Treat lines with 'D' in column one as comments
390 Set the default double precision kind to an 8 byte wide type
394 Set the default integer kind to an 8 byte wide type
398 Set the default real kind to an 8 byte wide type
402 Allow dollar signs in entity names
406 Does nothing. Preserved for backward compatibility.
408 fdump-fortran-original
410 Display the code tree after parsing
412 fdump-fortran-optimized
414 Display the code tree after front end optimization
418 Display the code tree after parsing; deprecated option
422 Specify that an external BLAS library should be used for matmul calls on large-size arrays
426 Use f2c calling convention
429 Fortran RejectNegative
430 Assume that the source file is fixed form
433 Fortran RejectNegative
434 Interpret any INTEGER(4) as an INTEGER(8)
436 fintrinsic-modules-path
437 Fortran RejectNegative Separate
438 Specify where to find the compiled intrinsic modules
440 fintrinsic-modules-path=
441 Fortran RejectNegative Joined
442 Specify where to find the compiled intrinsic modules
444 ffixed-line-length-none
445 Fortran RejectNegative
446 Allow arbitrary character line width in fixed mode
449 Fortran RejectNegative Joined UInteger
450 -ffixed-line-length-<n> Use n as character line width in fixed mode
453 Fortran RejectNegative JoinedOrMissing
454 -ffpe-trap=[...] Stop on following floating point exceptions
457 Fortran RejectNegative JoinedOrMissing
458 -ffpe-summary=[...] Print summary of floating point exceptions
461 Fortran RejectNegative
462 Assume that the source file is free form
464 ffree-line-length-none
465 Fortran RejectNegative
466 Allow arbitrary character line width in free mode
469 Fortran RejectNegative Joined UInteger
470 -ffree-line-length-<n> Use n as character line width in free mode
474 Enable front end optimization
478 Specify that no implicit typing is allowed, unless overridden by explicit IMPLICIT statements
481 Fortran RejectNegative Joined UInteger
482 -finit-character=<n> Initialize local character variables to ASCII value n
485 Fortran RejectNegative Joined
486 -finit-integer=<n> Initialize local integer variables to n
490 Initialize local variables to zero (from g77)
493 Fortran RejectNegative Joined
494 -finit-logical=<true|false> Initialize local logical variables
497 Fortran RejectNegative Joined
498 -finit-real=<zero|nan|inf|-inf> Initialize local real variables
500 fmax-array-constructor=
501 Fortran RejectNegative Joined UInteger
502 -fmax-array-constructor=<n> Maximum number of objects in an array constructor
504 fmax-identifier-length=
505 Fortran RejectNegative Joined UInteger
506 -fmax-identifier-length=<n> Maximum identifier length
508 fmax-subrecord-length=
509 Fortran RejectNegative Joined UInteger
510 -fmax-subrecord-length=<n> Maximum length for subrecords
513 Fortran RejectNegative Joined UInteger
514 -fmax-stack-var-size=<n> Size in bytes of the largest array that will be put on the stack
518 Put all local arrays on stack.
522 Set default accessibility of module entities to PRIVATE.
534 Try to lay out derived types as compactly as possible
542 Protect parentheses in expressions
546 Enable range checking during compilation
549 Fortran RejectNegative
550 Interpret any REAL(4) as a REAL(8)
553 Fortran RejectNegative
554 Interpret any REAL(4) as a REAL(10)
557 Fortran RejectNegative
558 Interpret any REAL(4) as a REAL(16)
561 Fortran RejectNegative
562 Interpret any REAL(8) as a REAL(4)
565 Fortran RejectNegative
566 Interpret any REAL(8) as a REAL(10)
569 Fortran RejectNegative
570 Interpret any REAL(8) as a REAL(16)
574 Reallocate the LHS in assignments
577 Fortran RejectNegative
578 Use a 4-byte record marker for unformatted files
581 Fortran RejectNegative
582 Use an 8-byte record marker for unformatted files
586 Allocate local variables on the stack to allow indirect recursion
590 Copy array sections into a contiguous block on procedure entry
593 Fortran RejectNegative JoinedOrMissing
594 -fcoarray=[...] Specify which coarray parallelization should be used
597 Fortran RejectNegative JoinedOrMissing
598 -fcheck=[...] Specify which runtime checks are to be performed
602 Append a second underscore if the name already contains an underscore
605 Fortran Var(flag_short_enums)
610 Apply negative sign to zero values
614 Append underscores to externally visible names
618 Does nothing. Preserved for backward compatibility.
625 Fortran Joined Separate
629 Fortran Joined Separate
633 Fortran Joined Separate
637 Fortran Joined Separate
641 Fortran Joined Separate
645 Fortran Joined Separate
653 Fortran Joined Separate
654 ; Documented in common.opt
658 Statically link the GNU Fortran helper library (libgfortran)
662 Conform to the ISO Fortran 2003 standard
666 Conform to the ISO Fortran 2008 standard
670 Conform to the ISO Fortran 2008 standard including TS 29113
674 Conform to the ISO Fortran 95 standard
678 Conform to nothing in particular
682 Accept extensions to support legacy code
692 ; This comment is to ensure we retain the blank line above.