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Commit | Line | Data |
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6de9cd9a | 1 | /* Parse and display command line options. |
6c7a4dfd JJ |
2 | Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
3 | Free Software Foundation, Inc. | |
6de9cd9a DN |
4 | Contributed by Andy Vaught |
5 | ||
9fc4d79b | 6 | This file is part of GCC. |
6de9cd9a | 7 | |
9fc4d79b TS |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
10 | Software Foundation; either version 2, or (at your option) any later | |
11 | version. | |
6de9cd9a | 12 | |
9fc4d79b TS |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
6de9cd9a DN |
17 | |
18 | You should have received a copy of the GNU General Public License | |
9fc4d79b | 19 | along with GCC; see the file COPYING. If not, write to the Free |
ab57747b KC |
20 | Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
6de9cd9a | 22 | |
6de9cd9a DN |
23 | |
24 | #include "config.h" | |
25 | #include "system.h" | |
26 | #include "coretypes.h" | |
27 | #include "tree.h" | |
28 | #include "flags.h" | |
29 | #include "intl.h" | |
30 | #include "opts.h" | |
31 | #include "options.h" | |
a5320d39 | 32 | #include "params.h" |
6de9cd9a DN |
33 | #include "tree-inline.h" |
34 | ||
35 | #include "gfortran.h" | |
25d8f0a2 | 36 | #include "target.h" |
6de9cd9a DN |
37 | |
38 | gfc_option_t gfc_option; | |
39 | ||
40 | ||
41 | /* Get ready for options handling. */ | |
42 | ||
43 | unsigned int | |
44 | gfc_init_options (unsigned int argc ATTRIBUTE_UNUSED, | |
45 | const char **argv ATTRIBUTE_UNUSED) | |
46 | { | |
e0bcf78c | 47 | gfc_source_file = NULL; |
6de9cd9a DN |
48 | gfc_option.module_dir = NULL; |
49 | gfc_option.source_form = FORM_UNKNOWN; | |
1dde8683 BM |
50 | gfc_option.fixed_line_length = 72; |
51 | gfc_option.free_line_length = 132; | |
5a06474c JD |
52 | gfc_option.max_continue_fixed = 19; |
53 | gfc_option.max_continue_free = 39; | |
6de9cd9a | 54 | gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN; |
07b3bbf2 TK |
55 | gfc_option.max_subrecord_length = 0; |
56 | gfc_option.convert = CONVERT_NATIVE; | |
57 | gfc_option.record_marker = 0; | |
6de9cd9a DN |
58 | gfc_option.verbose = 0; |
59 | ||
60 | gfc_option.warn_aliasing = 0; | |
3fbab549 | 61 | gfc_option.warn_ampersand = 0; |
0b30ba3b | 62 | gfc_option.warn_character_truncation = 0; |
6de9cd9a DN |
63 | gfc_option.warn_conversion = 0; |
64 | gfc_option.warn_implicit_interface = 0; | |
65 | gfc_option.warn_line_truncation = 0; | |
66 | gfc_option.warn_surprising = 0; | |
840bd9f7 SK |
67 | gfc_option.warn_tabs = 1; |
68 | gfc_option.warn_underflow = 1; | |
3f139fcf | 69 | gfc_option.max_errors = 25; |
6de9cd9a | 70 | |
a23eec13 | 71 | gfc_option.flag_all_intrinsics = 0; |
3ae9eb27 SK |
72 | gfc_option.flag_default_double = 0; |
73 | gfc_option.flag_default_integer = 0; | |
74 | gfc_option.flag_default_real = 0; | |
6de9cd9a DN |
75 | gfc_option.flag_dollar_ok = 0; |
76 | gfc_option.flag_underscoring = 1; | |
973ff4c0 TS |
77 | gfc_option.flag_f2c = 0; |
78 | gfc_option.flag_second_underscore = -1; | |
6de9cd9a DN |
79 | gfc_option.flag_implicit_none = 0; |
80 | gfc_option.flag_max_stack_var_size = 32768; | |
54554825 | 81 | gfc_option.flag_range_check = 1; |
6de9cd9a DN |
82 | gfc_option.flag_pack_derived = 0; |
83 | gfc_option.flag_repack_arrays = 0; | |
2d7c7df6 | 84 | gfc_option.flag_preprocessed = 0; |
ee5426a4 | 85 | gfc_option.flag_automatic = 1; |
131c66cd | 86 | gfc_option.flag_backslash = 1; |
eedeea04 | 87 | gfc_option.flag_dump_core = 0; |
5a0aad31 FXC |
88 | gfc_option.flag_external_blas = 0; |
89 | gfc_option.blas_matmul_limit = 30; | |
83d890b9 | 90 | gfc_option.flag_cray_pointer = 0; |
e0bcf78c | 91 | gfc_option.flag_d_lines = -1; |
6c7a4dfd | 92 | gfc_option.flag_openmp = 0; |
6de9cd9a | 93 | |
944b8b35 FXC |
94 | gfc_option.fpe = 0; |
95 | ||
0698a1d2 TM |
96 | /* Argument pointers cannot point to anything |
97 | but their argument. */ | |
98 | flag_argument_noalias = 3; | |
99 | ||
61e067cc | 100 | flag_errno_math = 0; |
6de9cd9a DN |
101 | |
102 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
c0309c74 RS |
103 | | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F77 | GFC_STD_GNU |
104 | | GFC_STD_LEGACY; | |
6de9cd9a | 105 | gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL |
cce283c7 | 106 | | GFC_STD_LEGACY; |
6de9cd9a | 107 | |
b7892582 JB |
108 | gfc_option.warn_nonstd_intrinsics = 0; |
109 | ||
25d8f0a2 TS |
110 | /* -fshort-enums can be default on some targets. */ |
111 | gfc_option.fshort_enums = targetm.default_short_enums (); | |
112 | ||
a5320d39 RG |
113 | /* Increase MAX_ALIASED_VOPS to account for different characteristics |
114 | of fortran regarding VOPs. */ | |
115 | MAX_ALIASED_VOPS = 50; | |
116 | ||
7f26dfa3 | 117 | return CL_Fortran; |
6de9cd9a DN |
118 | } |
119 | ||
120 | ||
e0bcf78c TS |
121 | /* Determine the source form from the filename extension. We assume |
122 | case insensitivity. */ | |
123 | ||
124 | static gfc_source_form | |
125 | form_from_filename (const char *filename) | |
126 | { | |
127 | ||
128 | static const struct | |
129 | { | |
130 | const char *extension; | |
131 | gfc_source_form form; | |
132 | } | |
133 | exttype[] = | |
134 | { | |
135 | { | |
136 | ".f90", FORM_FREE} | |
137 | , | |
138 | { | |
139 | ".f95", FORM_FREE} | |
140 | , | |
141 | { | |
142 | ".f", FORM_FIXED} | |
143 | , | |
144 | { | |
145 | ".for", FORM_FIXED} | |
146 | , | |
147 | { | |
148 | "", FORM_UNKNOWN} | |
149 | }; /* sentinel value */ | |
150 | ||
151 | gfc_source_form f_form; | |
152 | const char *fileext; | |
153 | int i; | |
154 | ||
155 | /* Find end of file name. Note, filename is either a NULL pointer or | |
156 | a NUL terminated string. */ | |
157 | i = 0; | |
158 | while (filename[i] != '\0') | |
159 | i++; | |
160 | ||
161 | /* Find last period. */ | |
162 | while (i >= 0 && (filename[i] != '.')) | |
163 | i--; | |
164 | ||
165 | /* Did we see a file extension? */ | |
166 | if (i < 0) | |
167 | return FORM_UNKNOWN; /* Nope */ | |
168 | ||
169 | /* Get file extension and compare it to others. */ | |
170 | fileext = &(filename[i]); | |
171 | ||
172 | i = -1; | |
173 | f_form = FORM_UNKNOWN; | |
174 | do | |
175 | { | |
176 | i++; | |
177 | if (strcasecmp (fileext, exttype[i].extension) == 0) | |
178 | { | |
179 | f_form = exttype[i].form; | |
180 | break; | |
181 | } | |
182 | } | |
183 | while (exttype[i].form != FORM_UNKNOWN); | |
184 | ||
185 | return f_form; | |
186 | } | |
187 | ||
188 | ||
6de9cd9a DN |
189 | /* Finalize commandline options. */ |
190 | ||
191 | bool | |
192 | gfc_post_options (const char **pfilename) | |
193 | { | |
2d7c7df6 | 194 | const char *filename = *pfilename, *canon_source_file = NULL; |
b424a572 FXC |
195 | char *source_path; |
196 | int i; | |
6de9cd9a DN |
197 | |
198 | /* Verify the input file name. */ | |
199 | if (!filename || strcmp (filename, "-") == 0) | |
200 | { | |
201 | filename = ""; | |
202 | } | |
203 | ||
2d7c7df6 JJ |
204 | if (gfc_option.flag_preprocessed) |
205 | { | |
206 | /* For preprocessed files, if the first tokens are of the form # NUM. | |
207 | handle the directives so we know the original file name. */ | |
208 | gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file); | |
209 | if (gfc_source_file == NULL) | |
210 | gfc_source_file = filename; | |
211 | else | |
212 | *pfilename = gfc_source_file; | |
213 | } | |
214 | else | |
215 | gfc_source_file = filename; | |
216 | ||
217 | if (canon_source_file == NULL) | |
218 | canon_source_file = gfc_source_file; | |
e0bcf78c | 219 | |
b424a572 FXC |
220 | /* Adds the path where the source file is to the list of include files. */ |
221 | ||
2d7c7df6 JJ |
222 | i = strlen (canon_source_file); |
223 | while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i])) | |
b424a572 FXC |
224 | i--; |
225 | if (i != 0) | |
226 | { | |
227 | source_path = alloca (i + 1); | |
2d7c7df6 | 228 | memcpy (source_path, canon_source_file, i); |
b424a572 | 229 | source_path[i] = 0; |
31198773 | 230 | gfc_add_include_path (source_path, true); |
b424a572 FXC |
231 | } |
232 | else | |
31198773 | 233 | gfc_add_include_path (".", true); |
b424a572 | 234 | |
2d7c7df6 JJ |
235 | if (canon_source_file != gfc_source_file) |
236 | gfc_free ((void *) canon_source_file); | |
237 | ||
e0bcf78c TS |
238 | /* Decide which form the file will be read in as. */ |
239 | ||
240 | if (gfc_option.source_form != FORM_UNKNOWN) | |
241 | gfc_current_form = gfc_option.source_form; | |
242 | else | |
243 | { | |
244 | gfc_current_form = form_from_filename (filename); | |
245 | ||
246 | if (gfc_current_form == FORM_UNKNOWN) | |
247 | { | |
248 | gfc_current_form = FORM_FREE; | |
e25a0da3 | 249 | gfc_warning_now ("Reading file '%s' as free form", |
2d7c7df6 | 250 | (filename[0] == '\0') ? "<stdin>" : filename); |
e0bcf78c TS |
251 | } |
252 | } | |
253 | ||
254 | /* If the user specified -fd-lines-as-{code|comments} verify that we're | |
255 | in fixed form. */ | |
256 | if (gfc_current_form == FORM_FREE) | |
257 | { | |
258 | if (gfc_option.flag_d_lines == 0) | |
259 | gfc_warning_now ("'-fd-lines-as-comments' has no effect " | |
e25a0da3 | 260 | "in free form"); |
e0bcf78c TS |
261 | else if (gfc_option.flag_d_lines == 1) |
262 | gfc_warning_now ("'-fd-lines-as-code' has no effect " | |
e25a0da3 | 263 | "in free form"); |
e0bcf78c | 264 | } |
6de9cd9a DN |
265 | |
266 | flag_inline_trees = 1; | |
267 | ||
268 | /* Use tree inlining. */ | |
269 | if (!flag_no_inline) | |
270 | flag_no_inline = 1; | |
271 | if (flag_inline_functions) | |
39afeb1a | 272 | flag_inline_trees = 2; |
fc2d8429 RS |
273 | |
274 | /* If -pedantic, warn about the use of GNU extensions. */ | |
275 | if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0) | |
276 | gfc_option.warn_std |= GFC_STD_GNU; | |
c0309c74 RS |
277 | /* -std=legacy -pedantic is effectively -std=gnu. */ |
278 | if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0) | |
279 | gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY; | |
fc2d8429 | 280 | |
973ff4c0 TS |
281 | /* If the user didn't explicitly specify -f(no)-second-underscore we |
282 | use it if we're trying to be compatible with f2c, and not | |
283 | otherwise. */ | |
284 | if (gfc_option.flag_second_underscore == -1) | |
285 | gfc_option.flag_second_underscore = gfc_option.flag_f2c; | |
286 | ||
d05d9ac7 JJ |
287 | /* Implement -fno-automatic as -fmax-stack-var-size=0. */ |
288 | if (!gfc_option.flag_automatic) | |
289 | gfc_option.flag_max_stack_var_size = 0; | |
3fbab549 JD |
290 | |
291 | if (pedantic) | |
292 | gfc_option.warn_ampersand = 1; | |
d05d9ac7 | 293 | |
73a5988f SK |
294 | if (gfc_option.flag_all_intrinsics) |
295 | gfc_option.warn_nonstd_intrinsics = 0; | |
296 | ||
6de9cd9a DN |
297 | return false; |
298 | } | |
299 | ||
300 | ||
301 | /* Set the options for -Wall. */ | |
302 | ||
303 | static void | |
304 | set_Wall (void) | |
305 | { | |
306 | ||
307 | gfc_option.warn_aliasing = 1; | |
3fbab549 | 308 | gfc_option.warn_ampersand = 1; |
6de9cd9a | 309 | gfc_option.warn_line_truncation = 1; |
840bd9f7 | 310 | gfc_option.warn_nonstd_intrinsics = 1; |
6de9cd9a | 311 | gfc_option.warn_surprising = 1; |
840bd9f7 SK |
312 | gfc_option.warn_tabs = 0; |
313 | gfc_option.warn_underflow = 1; | |
2220652d | 314 | gfc_option.warn_character_truncation = 1; |
2e5758e8 | 315 | |
6de9cd9a DN |
316 | set_Wunused (1); |
317 | warn_return_type = 1; | |
318 | warn_switch = 1; | |
319 | ||
320 | /* We save the value of warn_uninitialized, since if they put | |
321 | -Wuninitialized on the command line, we need to generate a | |
322 | warning about not using it without also specifying -O. */ | |
323 | ||
324 | if (warn_uninitialized != 1) | |
325 | warn_uninitialized = 2; | |
326 | } | |
327 | ||
328 | ||
329 | static void | |
330 | gfc_handle_module_path_options (const char *arg) | |
331 | { | |
332 | ||
333 | if (gfc_option.module_dir != NULL) | |
334 | { | |
335 | gfc_status ("gfortran: Only one -M option allowed\n"); | |
336 | exit (3); | |
337 | } | |
338 | ||
339 | if (arg == NULL) | |
340 | { | |
341 | gfc_status ("gfortran: Directory required after -M\n"); | |
342 | exit (3); | |
343 | } | |
344 | ||
629ceb93 | 345 | gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2); |
6de9cd9a DN |
346 | strcpy (gfc_option.module_dir, arg); |
347 | strcat (gfc_option.module_dir, "/"); | |
7376d710 FXC |
348 | |
349 | gfc_add_include_path (gfc_option.module_dir, true); | |
6de9cd9a DN |
350 | } |
351 | ||
944b8b35 FXC |
352 | static void |
353 | gfc_handle_fpe_trap_option (const char *arg) | |
354 | { | |
355 | int result, pos = 0, n; | |
356 | static const char * const exception[] = { "invalid", "denormal", "zero", | |
357 | "overflow", "underflow", | |
358 | "precision", NULL }; | |
359 | static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL, | |
360 | GFC_FPE_ZERO, GFC_FPE_OVERFLOW, | |
361 | GFC_FPE_UNDERFLOW, GFC_FPE_PRECISION, | |
362 | 0 }; | |
363 | ||
364 | while (*arg) | |
365 | { | |
366 | while (*arg == ',') | |
367 | arg++; | |
368 | while (arg[pos] && arg[pos] != ',') | |
369 | pos++; | |
370 | result = 0; | |
371 | for (n = 0; exception[n] != NULL; n++) | |
372 | { | |
373 | if (exception[n] && strncmp (exception[n], arg, pos) == 0) | |
374 | { | |
375 | gfc_option.fpe |= opt_exception[n]; | |
376 | arg += pos; | |
377 | pos = 0; | |
378 | result = 1; | |
379 | break; | |
380 | } | |
381 | } | |
382 | if (! result) | |
383 | gfc_fatal_error ("Argument to -ffpe-trap is not valid: %s", arg); | |
384 | } | |
385 | } | |
386 | ||
6de9cd9a DN |
387 | /* Handle command-line options. Returns 0 if unrecognized, 1 if |
388 | recognized and handled. */ | |
389 | int | |
390 | gfc_handle_option (size_t scode, const char *arg, int value) | |
391 | { | |
392 | int result = 1; | |
393 | enum opt_code code = (enum opt_code) scode; | |
394 | ||
395 | /* Ignore file names. */ | |
396 | if (code == N_OPTS) | |
397 | return 1; | |
398 | ||
399 | switch (code) | |
400 | { | |
401 | default: | |
402 | result = 0; | |
403 | break; | |
404 | ||
405 | case OPT_Wall: | |
406 | set_Wall (); | |
407 | break; | |
408 | ||
409 | case OPT_Waliasing: | |
410 | gfc_option.warn_aliasing = value; | |
411 | break; | |
412 | ||
3fbab549 JD |
413 | case OPT_Wampersand: |
414 | gfc_option.warn_ampersand = value; | |
415 | break; | |
416 | ||
0b30ba3b JD |
417 | case OPT_Wcharacter_truncation: |
418 | gfc_option.warn_character_truncation = value; | |
419 | break; | |
420 | ||
6de9cd9a DN |
421 | case OPT_Wconversion: |
422 | gfc_option.warn_conversion = value; | |
423 | break; | |
424 | ||
425 | case OPT_Wimplicit_interface: | |
426 | gfc_option.warn_implicit_interface = value; | |
427 | break; | |
428 | ||
429 | case OPT_Wline_truncation: | |
430 | gfc_option.warn_line_truncation = value; | |
431 | break; | |
432 | ||
433 | case OPT_Wsurprising: | |
434 | gfc_option.warn_surprising = value; | |
435 | break; | |
436 | ||
840bd9f7 SK |
437 | case OPT_Wtabs: |
438 | gfc_option.warn_tabs = value; | |
439 | break; | |
440 | ||
441 | case OPT_Wunderflow: | |
442 | gfc_option.warn_underflow = value; | |
443 | break; | |
444 | ||
a23eec13 SK |
445 | case OPT_fall_intrinsics: |
446 | gfc_option.flag_all_intrinsics = 1; | |
447 | break; | |
448 | ||
449 | case OPT_fautomatic: | |
450 | gfc_option.flag_automatic = value; | |
451 | break; | |
452 | ||
453 | case OPT_fbackslash: | |
454 | gfc_option.flag_backslash = value; | |
455 | break; | |
83d890b9 | 456 | |
eedeea04 FXC |
457 | case OPT_fdump_core: |
458 | gfc_option.flag_dump_core = value; | |
459 | break; | |
460 | ||
83d890b9 AL |
461 | case OPT_fcray_pointer: |
462 | gfc_option.flag_cray_pointer = value; | |
463 | break; | |
6de9cd9a | 464 | |
973ff4c0 TS |
465 | case OPT_ff2c: |
466 | gfc_option.flag_f2c = value; | |
467 | break; | |
468 | ||
6de9cd9a DN |
469 | case OPT_fdollar_ok: |
470 | gfc_option.flag_dollar_ok = value; | |
471 | break; | |
472 | ||
5a0aad31 FXC |
473 | case OPT_fexternal_blas: |
474 | gfc_option.flag_external_blas = value; | |
475 | break; | |
476 | ||
477 | case OPT_fblas_matmul_limit_: | |
478 | gfc_option.blas_matmul_limit = value; | |
479 | break; | |
480 | ||
e0bcf78c TS |
481 | case OPT_fd_lines_as_code: |
482 | gfc_option.flag_d_lines = 1; | |
483 | break; | |
484 | ||
485 | case OPT_fd_lines_as_comments: | |
486 | gfc_option.flag_d_lines = 0; | |
487 | break; | |
488 | ||
6de9cd9a DN |
489 | case OPT_fdump_parse_tree: |
490 | gfc_option.verbose = value; | |
491 | break; | |
492 | ||
493 | case OPT_ffixed_form: | |
494 | gfc_option.source_form = FORM_FIXED; | |
495 | break; | |
496 | ||
16ab8e74 BF |
497 | case OPT_ffixed_line_length_none: |
498 | gfc_option.fixed_line_length = 0; | |
499 | break; | |
500 | ||
501 | case OPT_ffixed_line_length_: | |
502 | if (value != 0 && value < 7) | |
503 | gfc_fatal_error ("Fixed line length must be at least seven."); | |
504 | gfc_option.fixed_line_length = value; | |
505 | break; | |
506 | ||
6de9cd9a DN |
507 | case OPT_ffree_form: |
508 | gfc_option.source_form = FORM_FREE; | |
509 | break; | |
510 | ||
6c7a4dfd JJ |
511 | case OPT_fopenmp: |
512 | gfc_option.flag_openmp = value; | |
513 | break; | |
514 | ||
16ab8e74 BF |
515 | case OPT_ffree_line_length_none: |
516 | gfc_option.free_line_length = 0; | |
517 | break; | |
518 | ||
519 | case OPT_ffree_line_length_: | |
520 | gfc_option.free_line_length = value; | |
521 | break; | |
522 | ||
6de9cd9a DN |
523 | case OPT_funderscoring: |
524 | gfc_option.flag_underscoring = value; | |
525 | break; | |
526 | ||
527 | case OPT_fsecond_underscore: | |
528 | gfc_option.flag_second_underscore = value; | |
529 | break; | |
530 | ||
531 | case OPT_fimplicit_none: | |
532 | gfc_option.flag_implicit_none = value; | |
533 | break; | |
534 | ||
31198773 FXC |
535 | case OPT_fintrinsic_modules_path: |
536 | gfc_add_include_path (arg, false); | |
537 | gfc_add_intrinsic_modules_path (arg); | |
538 | break; | |
539 | ||
3f139fcf BM |
540 | case OPT_fmax_errors_: |
541 | gfc_option.max_errors = value; | |
542 | break; | |
543 | ||
6de9cd9a DN |
544 | case OPT_fmax_stack_var_size_: |
545 | gfc_option.flag_max_stack_var_size = value; | |
546 | break; | |
547 | ||
54554825 JD |
548 | case OPT_frange_check: |
549 | gfc_option.flag_range_check = value; | |
550 | break; | |
551 | ||
6de9cd9a DN |
552 | case OPT_fpack_derived: |
553 | gfc_option.flag_pack_derived = value; | |
554 | break; | |
555 | ||
556 | case OPT_frepack_arrays: | |
557 | gfc_option.flag_repack_arrays = value; | |
558 | break; | |
559 | ||
2d7c7df6 JJ |
560 | case OPT_fpreprocessed: |
561 | gfc_option.flag_preprocessed = value; | |
562 | break; | |
563 | ||
6de9cd9a DN |
564 | case OPT_fmax_identifier_length_: |
565 | if (value > GFC_MAX_SYMBOL_LEN) | |
eb6d74fa | 566 | gfc_fatal_error ("Maximum supported identifier length is %d", |
6de9cd9a DN |
567 | GFC_MAX_SYMBOL_LEN); |
568 | gfc_option.max_identifier_length = value; | |
569 | break; | |
570 | ||
3ae9eb27 SK |
571 | case OPT_fdefault_integer_8: |
572 | gfc_option.flag_default_integer = value; | |
6de9cd9a DN |
573 | break; |
574 | ||
3ae9eb27 SK |
575 | case OPT_fdefault_real_8: |
576 | gfc_option.flag_default_real = value; | |
6de9cd9a DN |
577 | break; |
578 | ||
3ae9eb27 SK |
579 | case OPT_fdefault_double_8: |
580 | gfc_option.flag_default_double = value; | |
6de9cd9a DN |
581 | break; |
582 | ||
583 | case OPT_I: | |
31198773 | 584 | gfc_add_include_path (arg, true); |
6de9cd9a DN |
585 | break; |
586 | ||
587 | case OPT_J: | |
588 | case OPT_M: | |
589 | gfc_handle_module_path_options (arg); | |
2d0b4bcd | 590 | break; |
6de9cd9a | 591 | |
944b8b35 FXC |
592 | case OPT_ffpe_trap_: |
593 | gfc_handle_fpe_trap_option (arg); | |
594 | break; | |
595 | ||
6de9cd9a | 596 | case OPT_std_f95: |
b7892582 | 597 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77; |
6de9cd9a DN |
598 | gfc_option.warn_std = GFC_STD_F95_OBS; |
599 | gfc_option.max_identifier_length = 31; | |
3fbab549 | 600 | gfc_option.warn_ampersand = 1; |
840bd9f7 | 601 | gfc_option.warn_tabs = 0; |
6de9cd9a DN |
602 | break; |
603 | ||
604 | case OPT_std_f2003: | |
b7892582 JB |
605 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77 |
606 | | GFC_STD_F2003 | GFC_STD_F95; | |
607 | gfc_option.warn_std = GFC_STD_F95_OBS; | |
5a06474c JD |
608 | gfc_option.max_continue_fixed = 255; |
609 | gfc_option.max_continue_free = 255; | |
6de9cd9a | 610 | gfc_option.max_identifier_length = 63; |
3fbab549 | 611 | gfc_option.warn_ampersand = 1; |
6de9cd9a DN |
612 | break; |
613 | ||
614 | case OPT_std_gnu: | |
615 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
b7892582 | 616 | | GFC_STD_F77 | GFC_STD_F95 | GFC_STD_F2003 |
c0309c74 RS |
617 | | GFC_STD_GNU | GFC_STD_LEGACY; |
618 | gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
619 | | GFC_STD_LEGACY; | |
620 | break; | |
621 | ||
622 | case OPT_std_legacy: | |
623 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
624 | | GFC_STD_F77 | GFC_STD_F95 | GFC_STD_F2003 | |
625 | | GFC_STD_GNU | GFC_STD_LEGACY; | |
626 | gfc_option.warn_std = 0; | |
b7892582 JB |
627 | break; |
628 | ||
629 | case OPT_Wnonstd_intrinsics: | |
73a5988f | 630 | gfc_option.warn_nonstd_intrinsics = value; |
6de9cd9a | 631 | break; |
25d8f0a2 TS |
632 | |
633 | case OPT_fshort_enums: | |
634 | gfc_option.fshort_enums = 1; | |
635 | break; | |
eaa90d25 TK |
636 | |
637 | case OPT_fconvert_little_endian: | |
638 | gfc_option.convert = CONVERT_LITTLE; | |
639 | break; | |
640 | ||
641 | case OPT_fconvert_big_endian: | |
642 | gfc_option.convert = CONVERT_BIG; | |
643 | break; | |
644 | ||
645 | case OPT_fconvert_native: | |
646 | gfc_option.convert = CONVERT_NATIVE; | |
647 | break; | |
648 | ||
649 | case OPT_fconvert_swap: | |
650 | gfc_option.convert = CONVERT_SWAP; | |
651 | break; | |
d67ab5ee TK |
652 | |
653 | case OPT_frecord_marker_4: | |
654 | gfc_option.record_marker = 4; | |
655 | break; | |
656 | ||
657 | case OPT_frecord_marker_8: | |
658 | gfc_option.record_marker = 8; | |
659 | break; | |
07b3bbf2 TK |
660 | |
661 | case OPT_fmax_subrecord_length_: | |
662 | if (value > MAX_SUBRECORD_LENGTH) | |
663 | gfc_fatal_error ("Maximum subrecord length cannot exceed %d", MAX_SUBRECORD_LENGTH); | |
664 | ||
665 | gfc_option.max_subrecord_length = value; | |
6de9cd9a DN |
666 | } |
667 | ||
668 | return result; | |
669 | } |