1 /* Parse and display command line options.
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
4 Free Software Foundation, Inc.
5 Contributed by Andy Vaught
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
25 #include "coretypes.h"
32 #include "tree-inline.h"
36 #include "diagnostic-core.h" /* For sorry. */
39 gfc_option_t gfc_option;
42 /* Set flags that control warnings and errors for different
43 Fortran standards to their default values. Keep in sync with
44 libgfortran/runtime/compile_options.c (init_compile_options). */
47 set_default_std_flags (void)
49 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
50 | GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77
51 | GFC_STD_F2008_OBS | GFC_STD_GNU | GFC_STD_LEGACY;
52 gfc_option.warn_std = GFC_STD_F95_DEL | GFC_STD_LEGACY;
56 /* Return language mask for Fortran options. */
59 gfc_option_lang_mask (void)
65 /* Get ready for options handling. Keep in sync with
66 libgfortran/runtime/compile_options.c (init_compile_options). */
69 gfc_init_options (unsigned int decoded_options_count,
70 struct cl_decoded_option *decoded_options)
72 gfc_source_file = NULL;
73 gfc_option.module_dir = NULL;
74 gfc_option.source_form = FORM_UNKNOWN;
75 gfc_option.fixed_line_length = 72;
76 gfc_option.free_line_length = 132;
77 gfc_option.max_continue_fixed = 255;
78 gfc_option.max_continue_free = 255;
79 gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
80 gfc_option.max_subrecord_length = 0;
81 gfc_option.flag_max_array_constructor = 65535;
82 gfc_option.convert = GFC_CONVERT_NATIVE;
83 gfc_option.record_marker = 0;
84 gfc_option.dump_parse_tree = 0;
86 gfc_option.warn_aliasing = 0;
87 gfc_option.warn_ampersand = 0;
88 gfc_option.warn_character_truncation = 0;
89 gfc_option.warn_array_temp = 0;
90 gfc_option.warn_conversion = 0;
91 gfc_option.warn_conversion_extra = 0;
92 gfc_option.warn_implicit_interface = 0;
93 gfc_option.warn_line_truncation = 0;
94 gfc_option.warn_surprising = 0;
95 gfc_option.warn_tabs = 1;
96 gfc_option.warn_underflow = 1;
97 gfc_option.warn_intrinsic_shadow = 0;
98 gfc_option.warn_intrinsics_std = 0;
99 gfc_option.warn_align_commons = 1;
100 gfc_option.warn_unused_dummy_argument = 0;
101 gfc_option.max_errors = 25;
103 gfc_option.flag_all_intrinsics = 0;
104 gfc_option.flag_default_double = 0;
105 gfc_option.flag_default_integer = 0;
106 gfc_option.flag_default_real = 0;
107 gfc_option.flag_dollar_ok = 0;
108 gfc_option.flag_underscoring = 1;
109 gfc_option.flag_whole_file = 1;
110 gfc_option.flag_f2c = 0;
111 gfc_option.flag_second_underscore = -1;
112 gfc_option.flag_implicit_none = 0;
114 /* Default value of flag_max_stack_var_size is set in gfc_post_options. */
115 gfc_option.flag_max_stack_var_size = -2;
117 gfc_option.flag_range_check = 1;
118 gfc_option.flag_pack_derived = 0;
119 gfc_option.flag_repack_arrays = 0;
120 gfc_option.flag_preprocessed = 0;
121 gfc_option.flag_automatic = 1;
122 gfc_option.flag_backslash = 0;
123 gfc_option.flag_module_private = 0;
124 gfc_option.flag_backtrace = 0;
125 gfc_option.flag_allow_leading_underscore = 0;
126 gfc_option.flag_dump_core = 0;
127 gfc_option.flag_external_blas = 0;
128 gfc_option.blas_matmul_limit = 30;
129 gfc_option.flag_cray_pointer = 0;
130 gfc_option.flag_d_lines = -1;
131 gfc_option.flag_openmp = 0;
132 gfc_option.flag_sign_zero = 1;
133 gfc_option.flag_recursive = 0;
134 gfc_option.flag_init_integer = GFC_INIT_INTEGER_OFF;
135 gfc_option.flag_init_integer_value = 0;
136 gfc_option.flag_init_real = GFC_INIT_REAL_OFF;
137 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_OFF;
138 gfc_option.flag_init_character = GFC_INIT_CHARACTER_OFF;
139 gfc_option.flag_init_character_value = (char)0;
140 gfc_option.flag_align_commons = 1;
141 gfc_option.flag_protect_parens = 1;
144 gfc_option.rtcheck = 0;
145 gfc_option.coarray = GFC_FCOARRAY_NONE;
148 flag_associative_math = -1;
150 set_default_std_flags ();
152 /* -fshort-enums can be default on some targets. */
153 flag_short_enums = targetm.default_short_enums ();
155 /* Initialize cpp-related options. */
156 gfc_cpp_init_options (decoded_options_count, decoded_options);
160 /* Determine the source form from the filename extension. We assume
161 case insensitivity. */
163 static gfc_source_form
164 form_from_filename (const char *filename)
168 const char *extension;
169 gfc_source_form form;
196 }; /* sentinel value */
198 gfc_source_form f_form;
202 /* Find end of file name. Note, filename is either a NULL pointer or
203 a NUL terminated string. */
205 while (filename[i] != '\0')
208 /* Find last period. */
209 while (i >= 0 && (filename[i] != '.'))
212 /* Did we see a file extension? */
214 return FORM_UNKNOWN; /* Nope */
216 /* Get file extension and compare it to others. */
217 fileext = &(filename[i]);
220 f_form = FORM_UNKNOWN;
224 if (strcasecmp (fileext, exttype[i].extension) == 0)
226 f_form = exttype[i].form;
230 while (exttype[i].form != FORM_UNKNOWN);
236 /* Finalize commandline options. */
239 gfc_post_options (const char **pfilename)
241 const char *filename = *pfilename, *canon_source_file = NULL;
245 /* Excess precision other than "fast" requires front-end
247 if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD
248 && TARGET_FLT_EVAL_METHOD_NON_DEFAULT)
249 sorry ("-fexcess-precision=standard for Fortran");
250 flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;
252 /* Whole program needs whole file mode. */
253 if (flag_whole_program)
254 gfc_option.flag_whole_file = 1;
256 /* Enable whole-file mode if LTO is in effect. */
257 if (flag_lto || flag_whopr)
258 gfc_option.flag_whole_file = 1;
260 /* Fortran allows associative math - but we cannot reassociate if
261 we want traps or signed zeros. Cf. also flag_protect_parens. */
262 if (flag_associative_math == -1)
263 flag_associative_math = (!flag_trapping_math && !flag_signed_zeros);
265 /* -fbounds-check is equivalent to -fcheck=bounds */
266 if (flag_bounds_check)
267 gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS;
269 if (flag_compare_debug)
270 gfc_option.dump_parse_tree = 0;
272 /* Verify the input file name. */
273 if (!filename || strcmp (filename, "-") == 0)
278 if (gfc_option.flag_preprocessed)
280 /* For preprocessed files, if the first tokens are of the form # NUM.
281 handle the directives so we know the original file name. */
282 gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file);
283 if (gfc_source_file == NULL)
284 gfc_source_file = filename;
286 *pfilename = gfc_source_file;
289 gfc_source_file = filename;
291 if (canon_source_file == NULL)
292 canon_source_file = gfc_source_file;
294 /* Adds the path where the source file is to the list of include files. */
296 i = strlen (canon_source_file);
297 while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i]))
302 source_path = (char *) alloca (i + 1);
303 memcpy (source_path, canon_source_file, i);
305 gfc_add_include_path (source_path, true, true);
308 gfc_add_include_path (".", true, true);
310 if (canon_source_file != gfc_source_file)
311 gfc_free (CONST_CAST (char *, canon_source_file));
313 /* Decide which form the file will be read in as. */
315 if (gfc_option.source_form != FORM_UNKNOWN)
316 gfc_current_form = gfc_option.source_form;
319 gfc_current_form = form_from_filename (filename);
321 if (gfc_current_form == FORM_UNKNOWN)
323 gfc_current_form = FORM_FREE;
324 gfc_warning_now ("Reading file '%s' as free form",
325 (filename[0] == '\0') ? "<stdin>" : filename);
329 /* If the user specified -fd-lines-as-{code|comments} verify that we're
331 if (gfc_current_form == FORM_FREE)
333 if (gfc_option.flag_d_lines == 0)
334 gfc_warning_now ("'-fd-lines-as-comments' has no effect "
336 else if (gfc_option.flag_d_lines == 1)
337 gfc_warning_now ("'-fd-lines-as-code' has no effect in free form");
340 /* If -pedantic, warn about the use of GNU extensions. */
341 if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0)
342 gfc_option.warn_std |= GFC_STD_GNU;
343 /* -std=legacy -pedantic is effectively -std=gnu. */
344 if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0)
345 gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY;
347 /* If the user didn't explicitly specify -f(no)-second-underscore we
348 use it if we're trying to be compatible with f2c, and not
350 if (gfc_option.flag_second_underscore == -1)
351 gfc_option.flag_second_underscore = gfc_option.flag_f2c;
353 if (!gfc_option.flag_automatic && gfc_option.flag_max_stack_var_size != -2
354 && gfc_option.flag_max_stack_var_size != 0)
355 gfc_warning_now ("Flag -fno-automatic overwrites -fmax-stack-var-size=%d",
356 gfc_option.flag_max_stack_var_size);
357 else if (!gfc_option.flag_automatic && gfc_option.flag_recursive)
358 gfc_warning_now ("Flag -fno-automatic overwrites -frecursive");
359 else if (!gfc_option.flag_automatic && gfc_option.flag_openmp)
360 gfc_warning_now ("Flag -fno-automatic overwrites -frecursive implied by "
362 else if (gfc_option.flag_max_stack_var_size != -2
363 && gfc_option.flag_recursive)
364 gfc_warning_now ("Flag -frecursive overwrites -fmax-stack-var-size=%d",
365 gfc_option.flag_max_stack_var_size);
366 else if (gfc_option.flag_max_stack_var_size != -2
367 && gfc_option.flag_openmp)
368 gfc_warning_now ("Flag -fmax-stack-var-size=%d overwrites -frecursive "
369 "implied by -fopenmp",
370 gfc_option.flag_max_stack_var_size);
372 /* Implement -frecursive as -fmax-stack-var-size=-1. */
373 if (gfc_option.flag_recursive)
374 gfc_option.flag_max_stack_var_size = -1;
376 /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */
377 if (gfc_option.flag_max_stack_var_size == -2 && gfc_option.flag_openmp
378 && gfc_option.flag_automatic)
380 gfc_option.flag_recursive = 1;
381 gfc_option.flag_max_stack_var_size = -1;
385 if (gfc_option.flag_max_stack_var_size == -2)
386 gfc_option.flag_max_stack_var_size = 32768;
388 /* Implement -fno-automatic as -fmax-stack-var-size=0. */
389 if (!gfc_option.flag_automatic)
390 gfc_option.flag_max_stack_var_size = 0;
394 gfc_option.warn_ampersand = 1;
395 gfc_option.warn_tabs = 0;
398 if (pedantic && gfc_option.flag_whole_file)
399 gfc_option.flag_whole_file = 2;
401 gfc_cpp_post_options ();
403 /* FIXME: return gfc_cpp_preprocess_only ();
405 The return value of this function indicates whether the
406 backend needs to be initialized. On -E, we don't need
407 the backend. However, if we return 'true' here, an
408 ICE occurs. Initializing the backend doesn't hurt much,
409 hence, for now we can live with it as is. */
414 /* Set the options for -Wall. */
417 set_Wall (int setting)
419 gfc_option.warn_aliasing = setting;
420 gfc_option.warn_ampersand = setting;
421 gfc_option.warn_conversion = setting;
422 gfc_option.warn_line_truncation = setting;
423 gfc_option.warn_surprising = setting;
424 gfc_option.warn_tabs = !setting;
425 gfc_option.warn_underflow = setting;
426 gfc_option.warn_intrinsic_shadow = setting;
427 gfc_option.warn_intrinsics_std = setting;
428 gfc_option.warn_character_truncation = setting;
429 gfc_option.warn_unused_dummy_argument = setting;
431 warn_unused = setting;
432 warn_return_type = setting;
433 warn_switch = setting;
434 warn_uninitialized = setting;
439 gfc_handle_module_path_options (const char *arg)
442 if (gfc_option.module_dir != NULL)
443 gfc_fatal_error ("gfortran: Only one -J option allowed");
445 gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2);
446 strcpy (gfc_option.module_dir, arg);
447 strcat (gfc_option.module_dir, "/");
449 gfc_add_include_path (gfc_option.module_dir, true, false);
454 gfc_handle_fpe_trap_option (const char *arg)
456 int result, pos = 0, n;
457 static const char * const exception[] = { "invalid", "denormal", "zero",
458 "overflow", "underflow",
460 static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL,
461 GFC_FPE_ZERO, GFC_FPE_OVERFLOW,
462 GFC_FPE_UNDERFLOW, GFC_FPE_PRECISION,
470 while (arg[pos] && arg[pos] != ',')
474 for (n = 0; exception[n] != NULL; n++)
476 if (exception[n] && strncmp (exception[n], arg, pos) == 0)
478 gfc_option.fpe |= opt_exception[n];
486 gfc_fatal_error ("Argument to -ffpe-trap is not valid: %s", arg);
492 gfc_handle_coarray_option (const char *arg)
494 if (strcmp (arg, "none") == 0)
495 gfc_option.coarray = GFC_FCOARRAY_NONE;
496 else if (strcmp (arg, "single") == 0)
497 gfc_option.coarray = GFC_FCOARRAY_SINGLE;
499 gfc_fatal_error ("Argument to -fcoarray is not valid: %s", arg);
504 gfc_handle_runtime_check_option (const char *arg)
506 int result, pos = 0, n;
507 static const char * const optname[] = { "all", "bounds", "array-temps",
508 "recursion", "do", "pointer",
510 static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS,
511 GFC_RTCHECK_ARRAY_TEMPS,
512 GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO,
513 GFC_RTCHECK_POINTER, GFC_RTCHECK_MEM,
521 while (arg[pos] && arg[pos] != ',')
525 for (n = 0; optname[n] != NULL; n++)
527 if (optname[n] && strncmp (optname[n], arg, pos) == 0)
529 gfc_option.rtcheck |= optmask[n];
537 gfc_fatal_error ("Argument to -fcheck is not valid: %s", arg);
542 /* Handle command-line options. Returns 0 if unrecognized, 1 if
543 recognized and handled. */
546 gfc_handle_option (size_t scode, const char *arg, int value,
547 int kind ATTRIBUTE_UNUSED)
550 enum opt_code code = (enum opt_code) scode;
552 if (gfc_cpp_handle_option (scode, arg, value) == 1)
566 gfc_option.warn_aliasing = value;
570 gfc_option.warn_ampersand = value;
573 case OPT_Warray_temporaries:
574 gfc_option.warn_array_temp = value;
577 case OPT_Wcharacter_truncation:
578 gfc_option.warn_character_truncation = value;
581 case OPT_Wconversion:
582 gfc_option.warn_conversion = value;
585 case OPT_Wconversion_extra:
586 gfc_option.warn_conversion_extra = value;
589 case OPT_Wimplicit_interface:
590 gfc_option.warn_implicit_interface = value;
593 case OPT_Wimplicit_procedure:
594 gfc_option.warn_implicit_procedure = value;
597 case OPT_Wline_truncation:
598 gfc_option.warn_line_truncation = value;
601 case OPT_Wreturn_type:
602 warn_return_type = value;
605 case OPT_Wsurprising:
606 gfc_option.warn_surprising = value;
610 gfc_option.warn_tabs = value;
614 gfc_option.warn_underflow = value;
617 case OPT_Wintrinsic_shadow:
618 gfc_option.warn_intrinsic_shadow = value;
621 case OPT_Walign_commons:
622 gfc_option.warn_align_commons = value;
625 case OPT_Wunused_dummy_argument:
626 gfc_option.warn_unused_dummy_argument = value;
629 case OPT_fall_intrinsics:
630 gfc_option.flag_all_intrinsics = 1;
634 gfc_option.flag_automatic = value;
637 case OPT_fallow_leading_underscore:
638 gfc_option.flag_allow_leading_underscore = value;
642 gfc_option.flag_backslash = value;
646 gfc_option.flag_backtrace = value;
649 case OPT_fcheck_array_temporaries:
650 gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS;
654 gfc_option.flag_dump_core = value;
657 case OPT_fcray_pointer:
658 gfc_option.flag_cray_pointer = value;
662 gfc_option.flag_f2c = value;
666 gfc_option.flag_dollar_ok = value;
669 case OPT_fexternal_blas:
670 gfc_option.flag_external_blas = value;
673 case OPT_fblas_matmul_limit_:
674 gfc_option.blas_matmul_limit = value;
677 case OPT_fd_lines_as_code:
678 gfc_option.flag_d_lines = 1;
681 case OPT_fd_lines_as_comments:
682 gfc_option.flag_d_lines = 0;
685 case OPT_fdump_parse_tree:
686 gfc_option.dump_parse_tree = value;
689 case OPT_ffixed_form:
690 gfc_option.source_form = FORM_FIXED;
693 case OPT_ffixed_line_length_none:
694 gfc_option.fixed_line_length = 0;
697 case OPT_ffixed_line_length_:
698 if (value != 0 && value < 7)
699 gfc_fatal_error ("Fixed line length must be at least seven.");
700 gfc_option.fixed_line_length = value;
704 gfc_option.source_form = FORM_FREE;
708 gfc_option.flag_openmp = value;
711 case OPT_ffree_line_length_none:
712 gfc_option.free_line_length = 0;
715 case OPT_ffree_line_length_:
716 if (value != 0 && value < 4)
717 gfc_fatal_error ("Free line length must be at least three.");
718 gfc_option.free_line_length = value;
721 case OPT_funderscoring:
722 gfc_option.flag_underscoring = value;
725 case OPT_fwhole_file:
726 gfc_option.flag_whole_file = value;
729 case OPT_fsecond_underscore:
730 gfc_option.flag_second_underscore = value;
733 case OPT_static_libgfortran:
734 #ifndef HAVE_LD_STATIC_DYNAMIC
735 gfc_fatal_error ("-static-libgfortran is not supported in this "
740 case OPT_fimplicit_none:
741 gfc_option.flag_implicit_none = value;
744 case OPT_fintrinsic_modules_path:
745 gfc_add_include_path (arg, false, false);
746 gfc_add_intrinsic_modules_path (arg);
749 case OPT_fmax_array_constructor_:
750 gfc_option.flag_max_array_constructor = value > 65535 ? value : 65535;
753 case OPT_fmax_errors_:
754 gfc_option.max_errors = value;
757 case OPT_fmax_stack_var_size_:
758 gfc_option.flag_max_stack_var_size = value;
761 case OPT_fmodule_private:
762 gfc_option.flag_module_private = value;
765 case OPT_frange_check:
766 gfc_option.flag_range_check = value;
769 case OPT_fpack_derived:
770 gfc_option.flag_pack_derived = value;
773 case OPT_frepack_arrays:
774 gfc_option.flag_repack_arrays = value;
777 case OPT_fpreprocessed:
778 gfc_option.flag_preprocessed = value;
781 case OPT_fmax_identifier_length_:
782 if (value > GFC_MAX_SYMBOL_LEN)
783 gfc_fatal_error ("Maximum supported identifier length is %d",
785 gfc_option.max_identifier_length = value;
788 case OPT_fdefault_integer_8:
789 gfc_option.flag_default_integer = value;
792 case OPT_fdefault_real_8:
793 gfc_option.flag_default_real = value;
796 case OPT_fdefault_double_8:
797 gfc_option.flag_default_double = value;
800 case OPT_finit_local_zero:
801 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
802 gfc_option.flag_init_integer_value = 0;
803 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
804 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
805 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
806 gfc_option.flag_init_character_value = (char)0;
809 case OPT_finit_logical_:
810 if (!strcasecmp (arg, "false"))
811 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
812 else if (!strcasecmp (arg, "true"))
813 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE;
815 gfc_fatal_error ("Unrecognized option to -finit-logical: %s",
819 case OPT_finit_real_:
820 if (!strcasecmp (arg, "zero"))
821 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
822 else if (!strcasecmp (arg, "nan"))
823 gfc_option.flag_init_real = GFC_INIT_REAL_NAN;
824 else if (!strcasecmp (arg, "snan"))
825 gfc_option.flag_init_real = GFC_INIT_REAL_SNAN;
826 else if (!strcasecmp (arg, "inf"))
827 gfc_option.flag_init_real = GFC_INIT_REAL_INF;
828 else if (!strcasecmp (arg, "-inf"))
829 gfc_option.flag_init_real = GFC_INIT_REAL_NEG_INF;
831 gfc_fatal_error ("Unrecognized option to -finit-real: %s",
835 case OPT_finit_integer_:
836 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
837 gfc_option.flag_init_integer_value = atoi (arg);
840 case OPT_finit_character_:
841 if (value >= 0 && value <= 127)
843 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
844 gfc_option.flag_init_character_value = (char)value;
847 gfc_fatal_error ("The value of n in -finit-character=n must be "
848 "between 0 and 127");
852 gfc_add_include_path (arg, true, false);
856 gfc_handle_module_path_options (arg);
860 gfc_option.flag_sign_zero = value;
864 gfc_handle_fpe_trap_option (arg);
868 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77
870 gfc_option.warn_std = GFC_STD_F95_OBS;
871 gfc_option.max_continue_fixed = 19;
872 gfc_option.max_continue_free = 39;
873 gfc_option.max_identifier_length = 31;
874 gfc_option.warn_ampersand = 1;
875 gfc_option.warn_tabs = 0;
879 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
880 | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008_OBS;
881 gfc_option.warn_std = GFC_STD_F95_OBS;
882 gfc_option.max_identifier_length = 63;
883 gfc_option.warn_ampersand = 1;
884 gfc_option.warn_tabs = 0;
888 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
889 | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008 | GFC_STD_F2008_OBS;
890 gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS;
891 gfc_option.max_identifier_length = 63;
892 gfc_option.warn_ampersand = 1;
893 gfc_option.warn_tabs = 0;
897 set_default_std_flags ();
901 set_default_std_flags ();
902 gfc_option.warn_std = 0;
905 case OPT_Wintrinsics_std:
906 gfc_option.warn_intrinsics_std = value;
909 case OPT_fshort_enums:
910 /* Handled in language-independent code. */
913 case OPT_fconvert_little_endian:
914 gfc_option.convert = GFC_CONVERT_LITTLE;
917 case OPT_fconvert_big_endian:
918 gfc_option.convert = GFC_CONVERT_BIG;
921 case OPT_fconvert_native:
922 gfc_option.convert = GFC_CONVERT_NATIVE;
925 case OPT_fconvert_swap:
926 gfc_option.convert = GFC_CONVERT_SWAP;
929 case OPT_frecord_marker_4:
930 gfc_option.record_marker = 4;
933 case OPT_frecord_marker_8:
934 gfc_option.record_marker = 8;
937 case OPT_fmax_subrecord_length_:
938 if (value > MAX_SUBRECORD_LENGTH)
939 gfc_fatal_error ("Maximum subrecord length cannot exceed %d",
940 MAX_SUBRECORD_LENGTH);
942 gfc_option.max_subrecord_length = value;
946 gfc_option.flag_recursive = value;
949 case OPT_falign_commons:
950 gfc_option.flag_align_commons = value;
953 case OPT_fprotect_parens:
954 gfc_option.flag_protect_parens = value;
958 gfc_handle_runtime_check_option (arg);
962 gfc_handle_coarray_option (arg);