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"
30 #include "toplev.h" /* For save_decoded_options. */
33 #include "tree-inline.h"
37 #include "diagnostic-core.h" /* For sorry. */
40 gfc_option_t gfc_option;
43 /* Set flags that control warnings and errors for different
44 Fortran standards to their default values. Keep in sync with
45 libgfortran/runtime/compile_options.c (init_compile_options). */
48 set_default_std_flags (void)
50 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
51 | GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77
52 | GFC_STD_F2008_OBS | GFC_STD_GNU | GFC_STD_LEGACY;
53 gfc_option.warn_std = GFC_STD_F95_DEL | GFC_STD_LEGACY;
57 /* Return language mask for Fortran options. */
60 gfc_option_lang_mask (void)
65 /* Initialize options structure OPTS. */
68 gfc_init_options_struct (struct gcc_options *opts)
70 opts->x_flag_errno_math = 0;
71 opts->x_flag_associative_math = -1;
74 /* Get ready for options handling. Keep in sync with
75 libgfortran/runtime/compile_options.c (init_compile_options). */
78 gfc_init_options (unsigned int decoded_options_count,
79 struct cl_decoded_option *decoded_options)
81 gfc_source_file = NULL;
82 gfc_option.module_dir = NULL;
83 gfc_option.source_form = FORM_UNKNOWN;
84 gfc_option.fixed_line_length = 72;
85 gfc_option.free_line_length = 132;
86 gfc_option.max_continue_fixed = 255;
87 gfc_option.max_continue_free = 255;
88 gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
89 gfc_option.max_subrecord_length = 0;
90 gfc_option.flag_max_array_constructor = 65535;
91 gfc_option.convert = GFC_CONVERT_NATIVE;
92 gfc_option.record_marker = 0;
93 gfc_option.dump_fortran_original = 0;
94 gfc_option.dump_fortran_optimized = 0;
96 gfc_option.warn_aliasing = 0;
97 gfc_option.warn_ampersand = 0;
98 gfc_option.warn_character_truncation = 0;
99 gfc_option.warn_array_temp = 0;
100 gfc_option.gfc_warn_conversion = 0;
101 gfc_option.warn_conversion_extra = 0;
102 gfc_option.warn_implicit_interface = 0;
103 gfc_option.warn_line_truncation = 0;
104 gfc_option.warn_surprising = 0;
105 gfc_option.warn_tabs = 1;
106 gfc_option.warn_underflow = 1;
107 gfc_option.warn_intrinsic_shadow = 0;
108 gfc_option.warn_intrinsics_std = 0;
109 gfc_option.warn_align_commons = 1;
110 gfc_option.warn_unused_dummy_argument = 0;
111 gfc_option.max_errors = 25;
113 gfc_option.flag_all_intrinsics = 0;
114 gfc_option.flag_default_double = 0;
115 gfc_option.flag_default_integer = 0;
116 gfc_option.flag_default_real = 0;
117 gfc_option.flag_dollar_ok = 0;
118 gfc_option.flag_underscoring = 1;
119 gfc_option.flag_whole_file = 1;
120 gfc_option.flag_f2c = 0;
121 gfc_option.flag_second_underscore = -1;
122 gfc_option.flag_implicit_none = 0;
124 /* Default value of flag_max_stack_var_size is set in gfc_post_options. */
125 gfc_option.flag_max_stack_var_size = -2;
127 gfc_option.flag_range_check = 1;
128 gfc_option.flag_pack_derived = 0;
129 gfc_option.flag_repack_arrays = 0;
130 gfc_option.flag_preprocessed = 0;
131 gfc_option.flag_automatic = 1;
132 gfc_option.flag_backslash = 0;
133 gfc_option.flag_module_private = 0;
134 gfc_option.flag_backtrace = 0;
135 gfc_option.flag_allow_leading_underscore = 0;
136 gfc_option.flag_dump_core = 0;
137 gfc_option.flag_external_blas = 0;
138 gfc_option.blas_matmul_limit = 30;
139 gfc_option.flag_cray_pointer = 0;
140 gfc_option.flag_d_lines = -1;
141 gfc_option.gfc_flag_openmp = 0;
142 gfc_option.flag_sign_zero = 1;
143 gfc_option.flag_recursive = 0;
144 gfc_option.flag_init_integer = GFC_INIT_INTEGER_OFF;
145 gfc_option.flag_init_integer_value = 0;
146 gfc_option.flag_init_real = GFC_INIT_REAL_OFF;
147 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_OFF;
148 gfc_option.flag_init_character = GFC_INIT_CHARACTER_OFF;
149 gfc_option.flag_init_character_value = (char)0;
150 gfc_option.flag_align_commons = 1;
151 gfc_option.flag_protect_parens = 1;
154 gfc_option.rtcheck = 0;
155 gfc_option.coarray = GFC_FCOARRAY_NONE;
157 set_default_std_flags ();
159 /* Initialize cpp-related options. */
160 gfc_cpp_init_options (decoded_options_count, decoded_options);
164 /* Determine the source form from the filename extension. We assume
165 case insensitivity. */
167 static gfc_source_form
168 form_from_filename (const char *filename)
172 const char *extension;
173 gfc_source_form form;
200 }; /* sentinel value */
202 gfc_source_form f_form;
206 /* Find end of file name. Note, filename is either a NULL pointer or
207 a NUL terminated string. */
209 while (filename[i] != '\0')
212 /* Find last period. */
213 while (i >= 0 && (filename[i] != '.'))
216 /* Did we see a file extension? */
218 return FORM_UNKNOWN; /* Nope */
220 /* Get file extension and compare it to others. */
221 fileext = &(filename[i]);
224 f_form = FORM_UNKNOWN;
228 if (strcasecmp (fileext, exttype[i].extension) == 0)
230 f_form = exttype[i].form;
234 while (exttype[i].form != FORM_UNKNOWN);
240 /* Finalize commandline options. */
243 gfc_post_options (const char **pfilename)
245 const char *filename = *pfilename, *canon_source_file = NULL;
249 /* Excess precision other than "fast" requires front-end
251 if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD
252 && TARGET_FLT_EVAL_METHOD_NON_DEFAULT)
253 sorry ("-fexcess-precision=standard for Fortran");
254 flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;
256 /* Whole program needs whole file mode. */
257 if (flag_whole_program)
258 gfc_option.flag_whole_file = 1;
260 /* Enable whole-file mode if LTO is in effect. */
262 gfc_option.flag_whole_file = 1;
264 /* Fortran allows associative math - but we cannot reassociate if
265 we want traps or signed zeros. Cf. also flag_protect_parens. */
266 if (flag_associative_math == -1)
267 flag_associative_math = (!flag_trapping_math && !flag_signed_zeros);
269 /* -fbounds-check is equivalent to -fcheck=bounds */
270 if (flag_bounds_check)
271 gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS;
273 if (flag_compare_debug)
274 gfc_option.dump_fortran_original = 0;
276 /* Verify the input file name. */
277 if (!filename || strcmp (filename, "-") == 0)
282 if (gfc_option.flag_preprocessed)
284 /* For preprocessed files, if the first tokens are of the form # NUM.
285 handle the directives so we know the original file name. */
286 gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file);
287 if (gfc_source_file == NULL)
288 gfc_source_file = filename;
290 *pfilename = gfc_source_file;
293 gfc_source_file = filename;
295 if (canon_source_file == NULL)
296 canon_source_file = gfc_source_file;
298 /* Adds the path where the source file is to the list of include files. */
300 i = strlen (canon_source_file);
301 while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i]))
306 source_path = (char *) alloca (i + 1);
307 memcpy (source_path, canon_source_file, i);
309 gfc_add_include_path (source_path, true, true);
312 gfc_add_include_path (".", true, true);
314 if (canon_source_file != gfc_source_file)
315 gfc_free (CONST_CAST (char *, canon_source_file));
317 /* Decide which form the file will be read in as. */
319 if (gfc_option.source_form != FORM_UNKNOWN)
320 gfc_current_form = gfc_option.source_form;
323 gfc_current_form = form_from_filename (filename);
325 if (gfc_current_form == FORM_UNKNOWN)
327 gfc_current_form = FORM_FREE;
328 gfc_warning_now ("Reading file '%s' as free form",
329 (filename[0] == '\0') ? "<stdin>" : filename);
333 /* If the user specified -fd-lines-as-{code|comments} verify that we're
335 if (gfc_current_form == FORM_FREE)
337 if (gfc_option.flag_d_lines == 0)
338 gfc_warning_now ("'-fd-lines-as-comments' has no effect "
340 else if (gfc_option.flag_d_lines == 1)
341 gfc_warning_now ("'-fd-lines-as-code' has no effect in free form");
344 /* If -pedantic, warn about the use of GNU extensions. */
345 if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0)
346 gfc_option.warn_std |= GFC_STD_GNU;
347 /* -std=legacy -pedantic is effectively -std=gnu. */
348 if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0)
349 gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY;
351 /* If the user didn't explicitly specify -f(no)-second-underscore we
352 use it if we're trying to be compatible with f2c, and not
354 if (gfc_option.flag_second_underscore == -1)
355 gfc_option.flag_second_underscore = gfc_option.flag_f2c;
357 if (!gfc_option.flag_automatic && gfc_option.flag_max_stack_var_size != -2
358 && gfc_option.flag_max_stack_var_size != 0)
359 gfc_warning_now ("Flag -fno-automatic overwrites -fmax-stack-var-size=%d",
360 gfc_option.flag_max_stack_var_size);
361 else if (!gfc_option.flag_automatic && gfc_option.flag_recursive)
362 gfc_warning_now ("Flag -fno-automatic overwrites -frecursive");
363 else if (!gfc_option.flag_automatic && gfc_option.gfc_flag_openmp)
364 gfc_warning_now ("Flag -fno-automatic overwrites -frecursive implied by "
366 else if (gfc_option.flag_max_stack_var_size != -2
367 && gfc_option.flag_recursive)
368 gfc_warning_now ("Flag -frecursive overwrites -fmax-stack-var-size=%d",
369 gfc_option.flag_max_stack_var_size);
370 else if (gfc_option.flag_max_stack_var_size != -2
371 && gfc_option.gfc_flag_openmp)
372 gfc_warning_now ("Flag -fmax-stack-var-size=%d overwrites -frecursive "
373 "implied by -fopenmp",
374 gfc_option.flag_max_stack_var_size);
376 /* Implement -frecursive as -fmax-stack-var-size=-1. */
377 if (gfc_option.flag_recursive)
378 gfc_option.flag_max_stack_var_size = -1;
380 /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */
381 if (gfc_option.flag_max_stack_var_size == -2 && gfc_option.gfc_flag_openmp
382 && gfc_option.flag_automatic)
384 gfc_option.flag_recursive = 1;
385 gfc_option.flag_max_stack_var_size = -1;
389 if (gfc_option.flag_max_stack_var_size == -2)
390 gfc_option.flag_max_stack_var_size = 32768;
392 /* Implement -fno-automatic as -fmax-stack-var-size=0. */
393 if (!gfc_option.flag_automatic)
394 gfc_option.flag_max_stack_var_size = 0;
398 gfc_option.warn_ampersand = 1;
399 gfc_option.warn_tabs = 0;
402 if (pedantic && gfc_option.flag_whole_file)
403 gfc_option.flag_whole_file = 2;
405 gfc_cpp_post_options ();
407 /* FIXME: return gfc_cpp_preprocess_only ();
409 The return value of this function indicates whether the
410 backend needs to be initialized. On -E, we don't need
411 the backend. However, if we return 'true' here, an
412 ICE occurs. Initializing the backend doesn't hurt much,
413 hence, for now we can live with it as is. */
418 /* Set the options for -Wall. */
421 set_Wall (int setting)
423 gfc_option.warn_aliasing = setting;
424 gfc_option.warn_ampersand = setting;
425 gfc_option.gfc_warn_conversion = setting;
426 gfc_option.warn_line_truncation = setting;
427 gfc_option.warn_surprising = setting;
428 gfc_option.warn_tabs = !setting;
429 gfc_option.warn_underflow = setting;
430 gfc_option.warn_intrinsic_shadow = setting;
431 gfc_option.warn_intrinsics_std = setting;
432 gfc_option.warn_character_truncation = setting;
433 gfc_option.warn_unused_dummy_argument = setting;
435 warn_unused = setting;
436 warn_return_type = setting;
437 warn_switch = setting;
438 warn_uninitialized = setting;
443 gfc_handle_module_path_options (const char *arg)
446 if (gfc_option.module_dir != NULL)
447 gfc_fatal_error ("gfortran: Only one -J option allowed");
449 gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2);
450 strcpy (gfc_option.module_dir, arg);
451 strcat (gfc_option.module_dir, "/");
453 gfc_add_include_path (gfc_option.module_dir, true, false);
458 gfc_handle_fpe_trap_option (const char *arg)
460 int result, pos = 0, n;
461 static const char * const exception[] = { "invalid", "denormal", "zero",
462 "overflow", "underflow",
464 static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL,
465 GFC_FPE_ZERO, GFC_FPE_OVERFLOW,
466 GFC_FPE_UNDERFLOW, GFC_FPE_PRECISION,
474 while (arg[pos] && arg[pos] != ',')
478 for (n = 0; exception[n] != NULL; n++)
480 if (exception[n] && strncmp (exception[n], arg, pos) == 0)
482 gfc_option.fpe |= opt_exception[n];
490 gfc_fatal_error ("Argument to -ffpe-trap is not valid: %s", arg);
496 gfc_handle_coarray_option (const char *arg)
498 if (strcmp (arg, "none") == 0)
499 gfc_option.coarray = GFC_FCOARRAY_NONE;
500 else if (strcmp (arg, "single") == 0)
501 gfc_option.coarray = GFC_FCOARRAY_SINGLE;
503 gfc_fatal_error ("Argument to -fcoarray is not valid: %s", arg);
508 gfc_handle_runtime_check_option (const char *arg)
510 int result, pos = 0, n;
511 static const char * const optname[] = { "all", "bounds", "array-temps",
512 "recursion", "do", "pointer",
514 static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS,
515 GFC_RTCHECK_ARRAY_TEMPS,
516 GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO,
517 GFC_RTCHECK_POINTER, GFC_RTCHECK_MEM,
525 while (arg[pos] && arg[pos] != ',')
529 for (n = 0; optname[n] != NULL; n++)
531 if (optname[n] && strncmp (optname[n], arg, pos) == 0)
533 gfc_option.rtcheck |= optmask[n];
541 gfc_fatal_error ("Argument to -fcheck is not valid: %s", arg);
546 /* Handle command-line options. Returns 0 if unrecognized, 1 if
547 recognized and handled. */
550 gfc_handle_option (size_t scode, const char *arg, int value,
551 int kind ATTRIBUTE_UNUSED,
552 const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED)
555 enum opt_code code = (enum opt_code) scode;
557 if (gfc_cpp_handle_option (scode, arg, value) == 1)
571 gfc_option.warn_aliasing = value;
575 gfc_option.warn_ampersand = value;
578 case OPT_Warray_temporaries:
579 gfc_option.warn_array_temp = value;
582 case OPT_Wcharacter_truncation:
583 gfc_option.warn_character_truncation = value;
586 case OPT_Wconversion:
587 gfc_option.gfc_warn_conversion = value;
590 case OPT_Wconversion_extra:
591 gfc_option.warn_conversion_extra = value;
594 case OPT_Wimplicit_interface:
595 gfc_option.warn_implicit_interface = value;
598 case OPT_Wimplicit_procedure:
599 gfc_option.warn_implicit_procedure = value;
602 case OPT_Wline_truncation:
603 gfc_option.warn_line_truncation = value;
606 case OPT_Wreturn_type:
607 warn_return_type = value;
610 case OPT_Wsurprising:
611 gfc_option.warn_surprising = value;
615 gfc_option.warn_tabs = value;
619 gfc_option.warn_underflow = value;
622 case OPT_Wintrinsic_shadow:
623 gfc_option.warn_intrinsic_shadow = value;
626 case OPT_Walign_commons:
627 gfc_option.warn_align_commons = value;
630 case OPT_Wunused_dummy_argument:
631 gfc_option.warn_unused_dummy_argument = value;
634 case OPT_fall_intrinsics:
635 gfc_option.flag_all_intrinsics = 1;
639 gfc_option.flag_automatic = value;
642 case OPT_fallow_leading_underscore:
643 gfc_option.flag_allow_leading_underscore = value;
647 gfc_option.flag_backslash = value;
651 gfc_option.flag_backtrace = value;
654 case OPT_fcheck_array_temporaries:
655 gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS;
659 gfc_option.flag_dump_core = value;
662 case OPT_fcray_pointer:
663 gfc_option.flag_cray_pointer = value;
667 gfc_option.flag_f2c = value;
671 gfc_option.flag_dollar_ok = value;
674 case OPT_fexternal_blas:
675 gfc_option.flag_external_blas = value;
678 case OPT_fblas_matmul_limit_:
679 gfc_option.blas_matmul_limit = value;
682 case OPT_fd_lines_as_code:
683 gfc_option.flag_d_lines = 1;
686 case OPT_fd_lines_as_comments:
687 gfc_option.flag_d_lines = 0;
690 case OPT_fdump_fortran_original:
691 case OPT_fdump_parse_tree:
692 gfc_option.dump_fortran_original = value;
695 case OPT_fdump_fortran_optimized:
696 gfc_option.dump_fortran_optimized = value;
699 case OPT_ffixed_form:
700 gfc_option.source_form = FORM_FIXED;
703 case OPT_ffixed_line_length_none:
704 gfc_option.fixed_line_length = 0;
707 case OPT_ffixed_line_length_:
708 if (value != 0 && value < 7)
709 gfc_fatal_error ("Fixed line length must be at least seven.");
710 gfc_option.fixed_line_length = value;
714 gfc_option.source_form = FORM_FREE;
718 gfc_option.gfc_flag_openmp = value;
721 case OPT_ffree_line_length_none:
722 gfc_option.free_line_length = 0;
725 case OPT_ffree_line_length_:
726 if (value != 0 && value < 4)
727 gfc_fatal_error ("Free line length must be at least three.");
728 gfc_option.free_line_length = value;
731 case OPT_funderscoring:
732 gfc_option.flag_underscoring = value;
735 case OPT_fwhole_file:
736 gfc_option.flag_whole_file = value;
739 case OPT_fsecond_underscore:
740 gfc_option.flag_second_underscore = value;
743 case OPT_static_libgfortran:
744 #ifndef HAVE_LD_STATIC_DYNAMIC
745 gfc_fatal_error ("-static-libgfortran is not supported in this "
750 case OPT_fimplicit_none:
751 gfc_option.flag_implicit_none = value;
754 case OPT_fintrinsic_modules_path:
755 gfc_add_include_path (arg, false, false);
756 gfc_add_intrinsic_modules_path (arg);
759 case OPT_fmax_array_constructor_:
760 gfc_option.flag_max_array_constructor = value > 65535 ? value : 65535;
763 case OPT_fmax_errors_:
764 gfc_option.max_errors = value;
767 case OPT_fmax_stack_var_size_:
768 gfc_option.flag_max_stack_var_size = value;
771 case OPT_fmodule_private:
772 gfc_option.flag_module_private = value;
775 case OPT_frange_check:
776 gfc_option.flag_range_check = value;
779 case OPT_fpack_derived:
780 gfc_option.flag_pack_derived = value;
783 case OPT_frepack_arrays:
784 gfc_option.flag_repack_arrays = value;
787 case OPT_fpreprocessed:
788 gfc_option.flag_preprocessed = value;
791 case OPT_fmax_identifier_length_:
792 if (value > GFC_MAX_SYMBOL_LEN)
793 gfc_fatal_error ("Maximum supported identifier length is %d",
795 gfc_option.max_identifier_length = value;
798 case OPT_fdefault_integer_8:
799 gfc_option.flag_default_integer = value;
802 case OPT_fdefault_real_8:
803 gfc_option.flag_default_real = value;
806 case OPT_fdefault_double_8:
807 gfc_option.flag_default_double = value;
810 case OPT_finit_local_zero:
811 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
812 gfc_option.flag_init_integer_value = 0;
813 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
814 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
815 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
816 gfc_option.flag_init_character_value = (char)0;
819 case OPT_finit_logical_:
820 if (!strcasecmp (arg, "false"))
821 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
822 else if (!strcasecmp (arg, "true"))
823 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE;
825 gfc_fatal_error ("Unrecognized option to -finit-logical: %s",
829 case OPT_finit_real_:
830 if (!strcasecmp (arg, "zero"))
831 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
832 else if (!strcasecmp (arg, "nan"))
833 gfc_option.flag_init_real = GFC_INIT_REAL_NAN;
834 else if (!strcasecmp (arg, "snan"))
835 gfc_option.flag_init_real = GFC_INIT_REAL_SNAN;
836 else if (!strcasecmp (arg, "inf"))
837 gfc_option.flag_init_real = GFC_INIT_REAL_INF;
838 else if (!strcasecmp (arg, "-inf"))
839 gfc_option.flag_init_real = GFC_INIT_REAL_NEG_INF;
841 gfc_fatal_error ("Unrecognized option to -finit-real: %s",
845 case OPT_finit_integer_:
846 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
847 gfc_option.flag_init_integer_value = atoi (arg);
850 case OPT_finit_character_:
851 if (value >= 0 && value <= 127)
853 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
854 gfc_option.flag_init_character_value = (char)value;
857 gfc_fatal_error ("The value of n in -finit-character=n must be "
858 "between 0 and 127");
862 gfc_add_include_path (arg, true, false);
866 gfc_handle_module_path_options (arg);
870 gfc_option.flag_sign_zero = value;
874 gfc_handle_fpe_trap_option (arg);
878 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77
880 gfc_option.warn_std = GFC_STD_F95_OBS;
881 gfc_option.max_continue_fixed = 19;
882 gfc_option.max_continue_free = 39;
883 gfc_option.max_identifier_length = 31;
884 gfc_option.warn_ampersand = 1;
885 gfc_option.warn_tabs = 0;
889 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
890 | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008_OBS;
891 gfc_option.warn_std = GFC_STD_F95_OBS;
892 gfc_option.max_identifier_length = 63;
893 gfc_option.warn_ampersand = 1;
894 gfc_option.warn_tabs = 0;
898 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
899 | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008 | GFC_STD_F2008_OBS;
900 gfc_option.warn_std = GFC_STD_F95_OBS | GFC_STD_F2008_OBS;
901 gfc_option.max_identifier_length = 63;
902 gfc_option.warn_ampersand = 1;
903 gfc_option.warn_tabs = 0;
907 set_default_std_flags ();
911 set_default_std_flags ();
912 gfc_option.warn_std = 0;
915 case OPT_Wintrinsics_std:
916 gfc_option.warn_intrinsics_std = value;
919 case OPT_fshort_enums:
920 /* Handled in language-independent code. */
923 case OPT_fconvert_little_endian:
924 gfc_option.convert = GFC_CONVERT_LITTLE;
927 case OPT_fconvert_big_endian:
928 gfc_option.convert = GFC_CONVERT_BIG;
931 case OPT_fconvert_native:
932 gfc_option.convert = GFC_CONVERT_NATIVE;
935 case OPT_fconvert_swap:
936 gfc_option.convert = GFC_CONVERT_SWAP;
939 case OPT_frecord_marker_4:
940 gfc_option.record_marker = 4;
943 case OPT_frecord_marker_8:
944 gfc_option.record_marker = 8;
947 case OPT_fmax_subrecord_length_:
948 if (value > MAX_SUBRECORD_LENGTH)
949 gfc_fatal_error ("Maximum subrecord length cannot exceed %d",
950 MAX_SUBRECORD_LENGTH);
952 gfc_option.max_subrecord_length = value;
956 gfc_option.flag_recursive = value;
959 case OPT_falign_commons:
960 gfc_option.flag_align_commons = value;
963 case OPT_fprotect_parens:
964 gfc_option.flag_protect_parens = value;
968 gfc_handle_runtime_check_option (arg);
972 gfc_handle_coarray_option (arg);
980 /* Return a string with the options passed to the compiler; used for
981 Fortran's compiler_options() intrinsic. */
984 gfc_get_option_string (void)
990 /* Determine required string length. */
993 for (j = 1; j < save_decoded_options_count; j++)
995 switch (save_decoded_options[j].opt_index)
1004 case OPT_fintrinsic_modules_path:
1008 /* Ignore file names. */
1009 if (save_decoded_options[j].orig_option_with_args_text[0] == '-')
1011 + strlen (save_decoded_options[j].orig_option_with_args_text);
1015 result = (char *) gfc_getmem (len);
1018 for (j = 1; j < save_decoded_options_count; j++)
1020 switch (save_decoded_options[j].opt_index)
1029 case OPT_fintrinsic_modules_path:
1034 /* Use "-cpp" rather than "-cpp=<temporary file>". */
1039 /* Ignore file names. */
1040 if (save_decoded_options[j].orig_option_with_args_text[0] != '-')
1043 len = strlen (save_decoded_options[j].orig_option_with_args_text);
1046 memcpy (&result[pos], save_decoded_options[j].orig_option_with_args_text, len);
1048 result[pos++] = ' ';
1051 result[--pos] = '\0';