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Commit | Line | Data |
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6de9cd9a | 1 | /* Parse and display command line options. |
edf1eac2 | 2 | Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
6c7a4dfd | 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 | |
d234d788 | 10 | Software Foundation; either version 3, or (at your option) any later |
9fc4d79b | 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 | |
d234d788 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
6de9cd9a | 21 | |
6de9cd9a DN |
22 | #include "config.h" |
23 | #include "system.h" | |
24 | #include "coretypes.h" | |
25 | #include "tree.h" | |
26 | #include "flags.h" | |
27 | #include "intl.h" | |
28 | #include "opts.h" | |
29 | #include "options.h" | |
a5320d39 | 30 | #include "params.h" |
6de9cd9a | 31 | #include "tree-inline.h" |
6de9cd9a | 32 | #include "gfortran.h" |
25d8f0a2 | 33 | #include "target.h" |
6de9cd9a DN |
34 | |
35 | gfc_option_t gfc_option; | |
36 | ||
37 | ||
a47eec17 JD |
38 | /* Set flags that control warnings and errors for different |
39 | Fortran standards to their default values. */ | |
40 | ||
41 | static void | |
42 | set_default_std_flags (void) | |
43 | { | |
44 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL | |
45 | | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F77 | GFC_STD_GNU | |
46 | | GFC_STD_LEGACY; | |
47 | gfc_option.warn_std = GFC_STD_F95_DEL | GFC_STD_LEGACY; | |
48 | } | |
49 | ||
6de9cd9a DN |
50 | /* Get ready for options handling. */ |
51 | ||
52 | unsigned int | |
53 | gfc_init_options (unsigned int argc ATTRIBUTE_UNUSED, | |
54 | const char **argv ATTRIBUTE_UNUSED) | |
55 | { | |
e0bcf78c | 56 | gfc_source_file = NULL; |
6de9cd9a DN |
57 | gfc_option.module_dir = NULL; |
58 | gfc_option.source_form = FORM_UNKNOWN; | |
1dde8683 BM |
59 | gfc_option.fixed_line_length = 72; |
60 | gfc_option.free_line_length = 132; | |
5a06474c JD |
61 | gfc_option.max_continue_fixed = 19; |
62 | gfc_option.max_continue_free = 39; | |
6de9cd9a | 63 | gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN; |
07b3bbf2 | 64 | gfc_option.max_subrecord_length = 0; |
d74b97cc | 65 | gfc_option.convert = GFC_CONVERT_NATIVE; |
07b3bbf2 | 66 | gfc_option.record_marker = 0; |
6de9cd9a DN |
67 | gfc_option.verbose = 0; |
68 | ||
69 | gfc_option.warn_aliasing = 0; | |
3fbab549 | 70 | gfc_option.warn_ampersand = 0; |
0b30ba3b | 71 | gfc_option.warn_character_truncation = 0; |
6de9cd9a DN |
72 | gfc_option.warn_conversion = 0; |
73 | gfc_option.warn_implicit_interface = 0; | |
74 | gfc_option.warn_line_truncation = 0; | |
75 | gfc_option.warn_surprising = 0; | |
840bd9f7 SK |
76 | gfc_option.warn_tabs = 1; |
77 | gfc_option.warn_underflow = 1; | |
3f139fcf | 78 | gfc_option.max_errors = 25; |
6de9cd9a | 79 | |
a23eec13 | 80 | gfc_option.flag_all_intrinsics = 0; |
3ae9eb27 SK |
81 | gfc_option.flag_default_double = 0; |
82 | gfc_option.flag_default_integer = 0; | |
83 | gfc_option.flag_default_real = 0; | |
6de9cd9a DN |
84 | gfc_option.flag_dollar_ok = 0; |
85 | gfc_option.flag_underscoring = 1; | |
973ff4c0 TS |
86 | gfc_option.flag_f2c = 0; |
87 | gfc_option.flag_second_underscore = -1; | |
6de9cd9a | 88 | gfc_option.flag_implicit_none = 0; |
1e7de83b AL |
89 | |
90 | /* Default value of flag_max_stack_var_size is set in gfc_post_options. */ | |
91 | gfc_option.flag_max_stack_var_size = -2; | |
92 | ||
54554825 | 93 | gfc_option.flag_range_check = 1; |
6de9cd9a DN |
94 | gfc_option.flag_pack_derived = 0; |
95 | gfc_option.flag_repack_arrays = 0; | |
2d7c7df6 | 96 | gfc_option.flag_preprocessed = 0; |
ee5426a4 | 97 | gfc_option.flag_automatic = 1; |
131c66cd | 98 | gfc_option.flag_backslash = 1; |
654b6073 | 99 | gfc_option.flag_module_private = 0; |
868d75db | 100 | gfc_option.flag_backtrace = 0; |
e6472bce | 101 | gfc_option.flag_allow_leading_underscore = 0; |
eedeea04 | 102 | gfc_option.flag_dump_core = 0; |
5a0aad31 FXC |
103 | gfc_option.flag_external_blas = 0; |
104 | gfc_option.blas_matmul_limit = 30; | |
83d890b9 | 105 | gfc_option.flag_cray_pointer = 0; |
e0bcf78c | 106 | gfc_option.flag_d_lines = -1; |
6c7a4dfd | 107 | gfc_option.flag_openmp = 0; |
68d2e027 | 108 | gfc_option.flag_sign_zero = 1; |
1e7de83b | 109 | gfc_option.flag_recursive = 0; |
6de9cd9a | 110 | |
944b8b35 FXC |
111 | gfc_option.fpe = 0; |
112 | ||
edf1eac2 | 113 | /* Argument pointers cannot point to anything but their argument. */ |
0698a1d2 TM |
114 | flag_argument_noalias = 3; |
115 | ||
61e067cc | 116 | flag_errno_math = 0; |
6de9cd9a | 117 | |
a47eec17 | 118 | set_default_std_flags (); |
6de9cd9a | 119 | |
b7892582 JB |
120 | gfc_option.warn_nonstd_intrinsics = 0; |
121 | ||
25d8f0a2 TS |
122 | /* -fshort-enums can be default on some targets. */ |
123 | gfc_option.fshort_enums = targetm.default_short_enums (); | |
124 | ||
7f26dfa3 | 125 | return CL_Fortran; |
6de9cd9a DN |
126 | } |
127 | ||
128 | ||
e0bcf78c TS |
129 | /* Determine the source form from the filename extension. We assume |
130 | case insensitivity. */ | |
131 | ||
132 | static gfc_source_form | |
133 | form_from_filename (const char *filename) | |
134 | { | |
e0bcf78c TS |
135 | static const struct |
136 | { | |
137 | const char *extension; | |
138 | gfc_source_form form; | |
139 | } | |
140 | exttype[] = | |
141 | { | |
142 | { | |
143 | ".f90", FORM_FREE} | |
144 | , | |
145 | { | |
146 | ".f95", FORM_FREE} | |
147 | , | |
148 | { | |
7befd5d2 TB |
149 | ".f03", FORM_FREE} |
150 | , | |
151 | { | |
e0bcf78c TS |
152 | ".f", FORM_FIXED} |
153 | , | |
154 | { | |
155 | ".for", FORM_FIXED} | |
156 | , | |
157 | { | |
158 | "", FORM_UNKNOWN} | |
159 | }; /* sentinel value */ | |
160 | ||
161 | gfc_source_form f_form; | |
162 | const char *fileext; | |
163 | int i; | |
164 | ||
165 | /* Find end of file name. Note, filename is either a NULL pointer or | |
166 | a NUL terminated string. */ | |
167 | i = 0; | |
168 | while (filename[i] != '\0') | |
169 | i++; | |
170 | ||
171 | /* Find last period. */ | |
172 | while (i >= 0 && (filename[i] != '.')) | |
173 | i--; | |
174 | ||
175 | /* Did we see a file extension? */ | |
176 | if (i < 0) | |
177 | return FORM_UNKNOWN; /* Nope */ | |
178 | ||
179 | /* Get file extension and compare it to others. */ | |
180 | fileext = &(filename[i]); | |
181 | ||
182 | i = -1; | |
183 | f_form = FORM_UNKNOWN; | |
184 | do | |
185 | { | |
186 | i++; | |
187 | if (strcasecmp (fileext, exttype[i].extension) == 0) | |
188 | { | |
189 | f_form = exttype[i].form; | |
190 | break; | |
191 | } | |
192 | } | |
193 | while (exttype[i].form != FORM_UNKNOWN); | |
194 | ||
195 | return f_form; | |
196 | } | |
197 | ||
198 | ||
6de9cd9a DN |
199 | /* Finalize commandline options. */ |
200 | ||
201 | bool | |
202 | gfc_post_options (const char **pfilename) | |
203 | { | |
2d7c7df6 | 204 | const char *filename = *pfilename, *canon_source_file = NULL; |
b424a572 FXC |
205 | char *source_path; |
206 | int i; | |
6de9cd9a DN |
207 | |
208 | /* Verify the input file name. */ | |
209 | if (!filename || strcmp (filename, "-") == 0) | |
210 | { | |
211 | filename = ""; | |
212 | } | |
213 | ||
2d7c7df6 JJ |
214 | if (gfc_option.flag_preprocessed) |
215 | { | |
216 | /* For preprocessed files, if the first tokens are of the form # NUM. | |
217 | handle the directives so we know the original file name. */ | |
218 | gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file); | |
219 | if (gfc_source_file == NULL) | |
220 | gfc_source_file = filename; | |
221 | else | |
222 | *pfilename = gfc_source_file; | |
223 | } | |
224 | else | |
225 | gfc_source_file = filename; | |
226 | ||
227 | if (canon_source_file == NULL) | |
228 | canon_source_file = gfc_source_file; | |
e0bcf78c | 229 | |
b424a572 FXC |
230 | /* Adds the path where the source file is to the list of include files. */ |
231 | ||
2d7c7df6 JJ |
232 | i = strlen (canon_source_file); |
233 | while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i])) | |
b424a572 | 234 | i--; |
edf1eac2 | 235 | |
b424a572 FXC |
236 | if (i != 0) |
237 | { | |
238 | source_path = alloca (i + 1); | |
2d7c7df6 | 239 | memcpy (source_path, canon_source_file, i); |
b424a572 | 240 | source_path[i] = 0; |
31198773 | 241 | gfc_add_include_path (source_path, true); |
b424a572 FXC |
242 | } |
243 | else | |
31198773 | 244 | gfc_add_include_path (".", true); |
b424a572 | 245 | |
2d7c7df6 | 246 | if (canon_source_file != gfc_source_file) |
68a57691 | 247 | gfc_free (CONST_CAST (canon_source_file)); |
2d7c7df6 | 248 | |
e0bcf78c TS |
249 | /* Decide which form the file will be read in as. */ |
250 | ||
251 | if (gfc_option.source_form != FORM_UNKNOWN) | |
252 | gfc_current_form = gfc_option.source_form; | |
253 | else | |
254 | { | |
255 | gfc_current_form = form_from_filename (filename); | |
256 | ||
257 | if (gfc_current_form == FORM_UNKNOWN) | |
258 | { | |
259 | gfc_current_form = FORM_FREE; | |
e25a0da3 | 260 | gfc_warning_now ("Reading file '%s' as free form", |
2d7c7df6 | 261 | (filename[0] == '\0') ? "<stdin>" : filename); |
e0bcf78c TS |
262 | } |
263 | } | |
264 | ||
265 | /* If the user specified -fd-lines-as-{code|comments} verify that we're | |
266 | in fixed form. */ | |
267 | if (gfc_current_form == FORM_FREE) | |
268 | { | |
269 | if (gfc_option.flag_d_lines == 0) | |
270 | gfc_warning_now ("'-fd-lines-as-comments' has no effect " | |
e25a0da3 | 271 | "in free form"); |
e0bcf78c | 272 | else if (gfc_option.flag_d_lines == 1) |
edf1eac2 | 273 | gfc_warning_now ("'-fd-lines-as-code' has no effect in free form"); |
e0bcf78c | 274 | } |
6de9cd9a DN |
275 | |
276 | flag_inline_trees = 1; | |
277 | ||
278 | /* Use tree inlining. */ | |
279 | if (!flag_no_inline) | |
280 | flag_no_inline = 1; | |
281 | if (flag_inline_functions) | |
39afeb1a | 282 | flag_inline_trees = 2; |
fc2d8429 RS |
283 | |
284 | /* If -pedantic, warn about the use of GNU extensions. */ | |
285 | if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0) | |
286 | gfc_option.warn_std |= GFC_STD_GNU; | |
c0309c74 RS |
287 | /* -std=legacy -pedantic is effectively -std=gnu. */ |
288 | if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0) | |
289 | gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY; | |
fc2d8429 | 290 | |
973ff4c0 TS |
291 | /* If the user didn't explicitly specify -f(no)-second-underscore we |
292 | use it if we're trying to be compatible with f2c, and not | |
293 | otherwise. */ | |
294 | if (gfc_option.flag_second_underscore == -1) | |
295 | gfc_option.flag_second_underscore = gfc_option.flag_f2c; | |
296 | ||
1e7de83b AL |
297 | if (!gfc_option.flag_automatic && gfc_option.flag_max_stack_var_size != -2 |
298 | && gfc_option.flag_max_stack_var_size != 0) | |
299 | gfc_warning_now ("Flag -fno-automatic overwrites -fmax-stack-var-size=%d", | |
300 | gfc_option.flag_max_stack_var_size); | |
301 | else if (!gfc_option.flag_automatic && gfc_option.flag_recursive) | |
302 | gfc_warning_now ("Flag -fno-automatic overwrites -frecursive"); | |
303 | else if (!gfc_option.flag_automatic && gfc_option.flag_openmp) | |
304 | gfc_warning_now ("Flag -fno-automatic overwrites -frecursive implied by " | |
305 | "-fopenmp"); | |
306 | else if (gfc_option.flag_max_stack_var_size != -2 | |
307 | && gfc_option.flag_recursive) | |
308 | gfc_warning_now ("Flag -frecursive overwrites -fmax-stack-var-size=%d", | |
309 | gfc_option.flag_max_stack_var_size); | |
310 | else if (gfc_option.flag_max_stack_var_size != -2 | |
311 | && gfc_option.flag_openmp) | |
312 | gfc_warning_now ("Flag -fmax-stack-var-size=%d overwrites -frecursive " | |
313 | "implied by -fopenmp", | |
314 | gfc_option.flag_max_stack_var_size); | |
315 | ||
316 | /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */ | |
317 | if (gfc_option.flag_max_stack_var_size == -2 && gfc_option.flag_openmp) | |
318 | gfc_option.flag_max_stack_var_size = -1; | |
319 | ||
320 | /* Set default. */ | |
321 | if (gfc_option.flag_max_stack_var_size == -2) | |
322 | gfc_option.flag_max_stack_var_size = 32768; | |
323 | ||
324 | /* Implement -frecursive as -fmax-stack-var-size=-1. */ | |
325 | if (gfc_option.flag_recursive) | |
326 | gfc_option.flag_max_stack_var_size = -1; | |
327 | ||
d05d9ac7 JJ |
328 | /* Implement -fno-automatic as -fmax-stack-var-size=0. */ |
329 | if (!gfc_option.flag_automatic) | |
330 | gfc_option.flag_max_stack_var_size = 0; | |
3fbab549 JD |
331 | |
332 | if (pedantic) | |
8135cfa8 SK |
333 | { |
334 | gfc_option.warn_ampersand = 1; | |
335 | gfc_option.warn_tabs = 0; | |
336 | } | |
d05d9ac7 | 337 | |
73a5988f SK |
338 | if (gfc_option.flag_all_intrinsics) |
339 | gfc_option.warn_nonstd_intrinsics = 0; | |
340 | ||
6de9cd9a DN |
341 | return false; |
342 | } | |
343 | ||
344 | ||
345 | /* Set the options for -Wall. */ | |
346 | ||
347 | static void | |
4428e682 | 348 | set_Wall (int setting) |
6de9cd9a | 349 | { |
4428e682 MLI |
350 | gfc_option.warn_aliasing = setting; |
351 | gfc_option.warn_ampersand = setting; | |
352 | gfc_option.warn_line_truncation = setting; | |
353 | gfc_option.warn_nonstd_intrinsics = setting; | |
354 | gfc_option.warn_surprising = setting; | |
355 | gfc_option.warn_tabs = !setting; | |
356 | gfc_option.warn_underflow = setting; | |
357 | gfc_option.warn_character_truncation = setting; | |
358 | ||
359 | set_Wunused (setting); | |
360 | warn_return_type = setting; | |
361 | warn_switch = setting; | |
6de9cd9a DN |
362 | |
363 | /* We save the value of warn_uninitialized, since if they put | |
364 | -Wuninitialized on the command line, we need to generate a | |
365 | warning about not using it without also specifying -O. */ | |
4428e682 MLI |
366 | if (setting == 0) |
367 | warn_uninitialized = 0; | |
368 | else if (warn_uninitialized != 1) | |
6de9cd9a DN |
369 | warn_uninitialized = 2; |
370 | } | |
371 | ||
372 | ||
373 | static void | |
374 | gfc_handle_module_path_options (const char *arg) | |
375 | { | |
376 | ||
377 | if (gfc_option.module_dir != NULL) | |
378 | { | |
379 | gfc_status ("gfortran: Only one -M option allowed\n"); | |
380 | exit (3); | |
381 | } | |
382 | ||
383 | if (arg == NULL) | |
384 | { | |
385 | gfc_status ("gfortran: Directory required after -M\n"); | |
386 | exit (3); | |
387 | } | |
388 | ||
629ceb93 | 389 | gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2); |
6de9cd9a DN |
390 | strcpy (gfc_option.module_dir, arg); |
391 | strcat (gfc_option.module_dir, "/"); | |
7376d710 FXC |
392 | |
393 | gfc_add_include_path (gfc_option.module_dir, true); | |
6de9cd9a DN |
394 | } |
395 | ||
edf1eac2 | 396 | |
944b8b35 FXC |
397 | static void |
398 | gfc_handle_fpe_trap_option (const char *arg) | |
399 | { | |
400 | int result, pos = 0, n; | |
401 | static const char * const exception[] = { "invalid", "denormal", "zero", | |
edf1eac2 | 402 | "overflow", "underflow", |
944b8b35 FXC |
403 | "precision", NULL }; |
404 | static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL, | |
405 | GFC_FPE_ZERO, GFC_FPE_OVERFLOW, | |
406 | GFC_FPE_UNDERFLOW, GFC_FPE_PRECISION, | |
407 | 0 }; | |
408 | ||
409 | while (*arg) | |
410 | { | |
411 | while (*arg == ',') | |
412 | arg++; | |
edf1eac2 | 413 | |
944b8b35 FXC |
414 | while (arg[pos] && arg[pos] != ',') |
415 | pos++; | |
edf1eac2 | 416 | |
944b8b35 FXC |
417 | result = 0; |
418 | for (n = 0; exception[n] != NULL; n++) | |
419 | { | |
420 | if (exception[n] && strncmp (exception[n], arg, pos) == 0) | |
421 | { | |
422 | gfc_option.fpe |= opt_exception[n]; | |
423 | arg += pos; | |
424 | pos = 0; | |
425 | result = 1; | |
426 | break; | |
427 | } | |
428 | } | |
edf1eac2 | 429 | if (!result) |
944b8b35 FXC |
430 | gfc_fatal_error ("Argument to -ffpe-trap is not valid: %s", arg); |
431 | } | |
432 | } | |
433 | ||
edf1eac2 | 434 | |
6de9cd9a DN |
435 | /* Handle command-line options. Returns 0 if unrecognized, 1 if |
436 | recognized and handled. */ | |
edf1eac2 | 437 | |
6de9cd9a DN |
438 | int |
439 | gfc_handle_option (size_t scode, const char *arg, int value) | |
440 | { | |
441 | int result = 1; | |
442 | enum opt_code code = (enum opt_code) scode; | |
443 | ||
444 | /* Ignore file names. */ | |
445 | if (code == N_OPTS) | |
446 | return 1; | |
447 | ||
448 | switch (code) | |
449 | { | |
450 | default: | |
451 | result = 0; | |
452 | break; | |
453 | ||
454 | case OPT_Wall: | |
4428e682 | 455 | set_Wall (value); |
6de9cd9a DN |
456 | break; |
457 | ||
458 | case OPT_Waliasing: | |
459 | gfc_option.warn_aliasing = value; | |
460 | break; | |
461 | ||
3fbab549 JD |
462 | case OPT_Wampersand: |
463 | gfc_option.warn_ampersand = value; | |
464 | break; | |
465 | ||
0b30ba3b JD |
466 | case OPT_Wcharacter_truncation: |
467 | gfc_option.warn_character_truncation = value; | |
468 | break; | |
469 | ||
6de9cd9a DN |
470 | case OPT_Wconversion: |
471 | gfc_option.warn_conversion = value; | |
472 | break; | |
473 | ||
474 | case OPT_Wimplicit_interface: | |
475 | gfc_option.warn_implicit_interface = value; | |
476 | break; | |
477 | ||
478 | case OPT_Wline_truncation: | |
479 | gfc_option.warn_line_truncation = value; | |
480 | break; | |
481 | ||
482 | case OPT_Wsurprising: | |
483 | gfc_option.warn_surprising = value; | |
484 | break; | |
485 | ||
840bd9f7 SK |
486 | case OPT_Wtabs: |
487 | gfc_option.warn_tabs = value; | |
488 | break; | |
489 | ||
490 | case OPT_Wunderflow: | |
491 | gfc_option.warn_underflow = value; | |
492 | break; | |
493 | ||
a23eec13 SK |
494 | case OPT_fall_intrinsics: |
495 | gfc_option.flag_all_intrinsics = 1; | |
496 | break; | |
497 | ||
498 | case OPT_fautomatic: | |
499 | gfc_option.flag_automatic = value; | |
500 | break; | |
501 | ||
e6472bce FXC |
502 | case OPT_fallow_leading_underscore: |
503 | gfc_option.flag_allow_leading_underscore = value; | |
504 | break; | |
505 | ||
a23eec13 SK |
506 | case OPT_fbackslash: |
507 | gfc_option.flag_backslash = value; | |
508 | break; | |
83d890b9 | 509 | |
868d75db FXC |
510 | case OPT_fbacktrace: |
511 | gfc_option.flag_backtrace = value; | |
512 | break; | |
513 | ||
eedeea04 FXC |
514 | case OPT_fdump_core: |
515 | gfc_option.flag_dump_core = value; | |
516 | break; | |
517 | ||
83d890b9 AL |
518 | case OPT_fcray_pointer: |
519 | gfc_option.flag_cray_pointer = value; | |
520 | break; | |
6de9cd9a | 521 | |
973ff4c0 TS |
522 | case OPT_ff2c: |
523 | gfc_option.flag_f2c = value; | |
524 | break; | |
525 | ||
6de9cd9a DN |
526 | case OPT_fdollar_ok: |
527 | gfc_option.flag_dollar_ok = value; | |
528 | break; | |
529 | ||
5a0aad31 FXC |
530 | case OPT_fexternal_blas: |
531 | gfc_option.flag_external_blas = value; | |
532 | break; | |
533 | ||
534 | case OPT_fblas_matmul_limit_: | |
535 | gfc_option.blas_matmul_limit = value; | |
536 | break; | |
537 | ||
e0bcf78c TS |
538 | case OPT_fd_lines_as_code: |
539 | gfc_option.flag_d_lines = 1; | |
540 | break; | |
541 | ||
542 | case OPT_fd_lines_as_comments: | |
543 | gfc_option.flag_d_lines = 0; | |
544 | break; | |
545 | ||
6de9cd9a DN |
546 | case OPT_fdump_parse_tree: |
547 | gfc_option.verbose = value; | |
548 | break; | |
549 | ||
550 | case OPT_ffixed_form: | |
551 | gfc_option.source_form = FORM_FIXED; | |
552 | break; | |
553 | ||
16ab8e74 BF |
554 | case OPT_ffixed_line_length_none: |
555 | gfc_option.fixed_line_length = 0; | |
556 | break; | |
557 | ||
558 | case OPT_ffixed_line_length_: | |
559 | if (value != 0 && value < 7) | |
560 | gfc_fatal_error ("Fixed line length must be at least seven."); | |
561 | gfc_option.fixed_line_length = value; | |
562 | break; | |
563 | ||
6de9cd9a DN |
564 | case OPT_ffree_form: |
565 | gfc_option.source_form = FORM_FREE; | |
566 | break; | |
567 | ||
6c7a4dfd JJ |
568 | case OPT_fopenmp: |
569 | gfc_option.flag_openmp = value; | |
570 | break; | |
571 | ||
16ab8e74 BF |
572 | case OPT_ffree_line_length_none: |
573 | gfc_option.free_line_length = 0; | |
574 | break; | |
575 | ||
576 | case OPT_ffree_line_length_: | |
27fabb5a TS |
577 | if (value != 0 && value < 4) |
578 | gfc_fatal_error ("Free line length must be at least three."); | |
16ab8e74 BF |
579 | gfc_option.free_line_length = value; |
580 | break; | |
581 | ||
6de9cd9a DN |
582 | case OPT_funderscoring: |
583 | gfc_option.flag_underscoring = value; | |
584 | break; | |
585 | ||
586 | case OPT_fsecond_underscore: | |
587 | gfc_option.flag_second_underscore = value; | |
588 | break; | |
589 | ||
86db887a FXC |
590 | case OPT_static_libgfortran: |
591 | #ifndef HAVE_LD_STATIC_DYNAMIC | |
592 | gfc_fatal_error ("-static-libgfortran is not supported in this " | |
593 | "configuration"); | |
594 | #endif | |
595 | break; | |
596 | ||
6de9cd9a DN |
597 | case OPT_fimplicit_none: |
598 | gfc_option.flag_implicit_none = value; | |
599 | break; | |
600 | ||
31198773 FXC |
601 | case OPT_fintrinsic_modules_path: |
602 | gfc_add_include_path (arg, false); | |
603 | gfc_add_intrinsic_modules_path (arg); | |
604 | break; | |
605 | ||
3f139fcf BM |
606 | case OPT_fmax_errors_: |
607 | gfc_option.max_errors = value; | |
608 | break; | |
609 | ||
6de9cd9a DN |
610 | case OPT_fmax_stack_var_size_: |
611 | gfc_option.flag_max_stack_var_size = value; | |
612 | break; | |
613 | ||
654b6073 FXC |
614 | case OPT_fmodule_private: |
615 | gfc_option.flag_module_private = value; | |
616 | break; | |
617 | ||
54554825 JD |
618 | case OPT_frange_check: |
619 | gfc_option.flag_range_check = value; | |
620 | break; | |
621 | ||
6de9cd9a DN |
622 | case OPT_fpack_derived: |
623 | gfc_option.flag_pack_derived = value; | |
624 | break; | |
625 | ||
626 | case OPT_frepack_arrays: | |
627 | gfc_option.flag_repack_arrays = value; | |
628 | break; | |
629 | ||
2d7c7df6 JJ |
630 | case OPT_fpreprocessed: |
631 | gfc_option.flag_preprocessed = value; | |
632 | break; | |
633 | ||
6de9cd9a DN |
634 | case OPT_fmax_identifier_length_: |
635 | if (value > GFC_MAX_SYMBOL_LEN) | |
eb6d74fa | 636 | gfc_fatal_error ("Maximum supported identifier length is %d", |
6de9cd9a DN |
637 | GFC_MAX_SYMBOL_LEN); |
638 | gfc_option.max_identifier_length = value; | |
639 | break; | |
640 | ||
3ae9eb27 SK |
641 | case OPT_fdefault_integer_8: |
642 | gfc_option.flag_default_integer = value; | |
6de9cd9a DN |
643 | break; |
644 | ||
3ae9eb27 SK |
645 | case OPT_fdefault_real_8: |
646 | gfc_option.flag_default_real = value; | |
6de9cd9a DN |
647 | break; |
648 | ||
3ae9eb27 SK |
649 | case OPT_fdefault_double_8: |
650 | gfc_option.flag_default_double = value; | |
6de9cd9a DN |
651 | break; |
652 | ||
653 | case OPT_I: | |
31198773 | 654 | gfc_add_include_path (arg, true); |
6de9cd9a DN |
655 | break; |
656 | ||
657 | case OPT_J: | |
658 | case OPT_M: | |
659 | gfc_handle_module_path_options (arg); | |
2d0b4bcd | 660 | break; |
6de9cd9a | 661 | |
68d2e027 JD |
662 | case OPT_fsign_zero: |
663 | gfc_option.flag_sign_zero = value; | |
664 | break; | |
665 | ||
944b8b35 FXC |
666 | case OPT_ffpe_trap_: |
667 | gfc_handle_fpe_trap_option (arg); | |
668 | break; | |
669 | ||
6de9cd9a | 670 | case OPT_std_f95: |
b7892582 | 671 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77; |
6de9cd9a DN |
672 | gfc_option.warn_std = GFC_STD_F95_OBS; |
673 | gfc_option.max_identifier_length = 31; | |
3fbab549 | 674 | gfc_option.warn_ampersand = 1; |
840bd9f7 | 675 | gfc_option.warn_tabs = 0; |
6de9cd9a DN |
676 | break; |
677 | ||
678 | case OPT_std_f2003: | |
b7892582 JB |
679 | gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77 |
680 | | GFC_STD_F2003 | GFC_STD_F95; | |
681 | gfc_option.warn_std = GFC_STD_F95_OBS; | |
5a06474c JD |
682 | gfc_option.max_continue_fixed = 255; |
683 | gfc_option.max_continue_free = 255; | |
6de9cd9a | 684 | gfc_option.max_identifier_length = 63; |
3fbab549 | 685 | gfc_option.warn_ampersand = 1; |
8135cfa8 | 686 | gfc_option.warn_tabs = 0; |
6de9cd9a DN |
687 | break; |
688 | ||
689 | case OPT_std_gnu: | |
a47eec17 | 690 | set_default_std_flags (); |
c0309c74 RS |
691 | break; |
692 | ||
693 | case OPT_std_legacy: | |
a47eec17 | 694 | set_default_std_flags (); |
c0309c74 | 695 | gfc_option.warn_std = 0; |
b7892582 JB |
696 | break; |
697 | ||
698 | case OPT_Wnonstd_intrinsics: | |
73a5988f | 699 | gfc_option.warn_nonstd_intrinsics = value; |
6de9cd9a | 700 | break; |
25d8f0a2 TS |
701 | |
702 | case OPT_fshort_enums: | |
703 | gfc_option.fshort_enums = 1; | |
704 | break; | |
eaa90d25 TK |
705 | |
706 | case OPT_fconvert_little_endian: | |
d74b97cc | 707 | gfc_option.convert = GFC_CONVERT_LITTLE; |
eaa90d25 TK |
708 | break; |
709 | ||
710 | case OPT_fconvert_big_endian: | |
d74b97cc | 711 | gfc_option.convert = GFC_CONVERT_BIG; |
eaa90d25 TK |
712 | break; |
713 | ||
714 | case OPT_fconvert_native: | |
d74b97cc | 715 | gfc_option.convert = GFC_CONVERT_NATIVE; |
eaa90d25 TK |
716 | break; |
717 | ||
718 | case OPT_fconvert_swap: | |
d74b97cc | 719 | gfc_option.convert = GFC_CONVERT_SWAP; |
eaa90d25 | 720 | break; |
d67ab5ee TK |
721 | |
722 | case OPT_frecord_marker_4: | |
723 | gfc_option.record_marker = 4; | |
724 | break; | |
725 | ||
726 | case OPT_frecord_marker_8: | |
727 | gfc_option.record_marker = 8; | |
728 | break; | |
07b3bbf2 TK |
729 | |
730 | case OPT_fmax_subrecord_length_: | |
731 | if (value > MAX_SUBRECORD_LENGTH) | |
edf1eac2 SK |
732 | gfc_fatal_error ("Maximum subrecord length cannot exceed %d", |
733 | MAX_SUBRECORD_LENGTH); | |
07b3bbf2 TK |
734 | |
735 | gfc_option.max_subrecord_length = value; | |
1e7de83b AL |
736 | break; |
737 | ||
738 | case OPT_frecursive: | |
739 | gfc_option.flag_recursive = 1; | |
740 | break; | |
6de9cd9a DN |
741 | } |
742 | ||
743 | return result; | |
744 | } |