1 /* Parse and display command line options.
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
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 3, or (at your option) any later
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
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
24 #include "coretypes.h"
31 #include "tree-inline.h"
38 gfc_option_t gfc_option;
41 /* Set flags that control warnings and errors for different
42 Fortran standards to their default values. Keep in sync with
43 libgfortran/runtime/compile_options.c (init_compile_options). */
46 set_default_std_flags (void)
48 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95_DEL
49 | GFC_STD_F2003 | GFC_STD_F2008 | GFC_STD_F95 | GFC_STD_F77
50 | GFC_STD_GNU | GFC_STD_LEGACY;
51 gfc_option.warn_std = GFC_STD_F95_DEL | GFC_STD_LEGACY;
55 /* Get ready for options handling. Keep in sync with
56 libgfortran/runtime/compile_options.c (init_compile_options). */
59 gfc_init_options (unsigned int argc, const char **argv)
61 gfc_source_file = NULL;
62 gfc_option.module_dir = NULL;
63 gfc_option.source_form = FORM_UNKNOWN;
64 gfc_option.fixed_line_length = 72;
65 gfc_option.free_line_length = 132;
66 gfc_option.max_continue_fixed = 255;
67 gfc_option.max_continue_free = 255;
68 gfc_option.max_identifier_length = GFC_MAX_SYMBOL_LEN;
69 gfc_option.max_subrecord_length = 0;
70 gfc_option.flag_max_array_constructor = 65535;
71 gfc_option.convert = GFC_CONVERT_NATIVE;
72 gfc_option.record_marker = 0;
73 gfc_option.dump_parse_tree = 0;
75 gfc_option.warn_aliasing = 0;
76 gfc_option.warn_ampersand = 0;
77 gfc_option.warn_character_truncation = 0;
78 gfc_option.warn_array_temp = 0;
79 gfc_option.warn_conversion = 0;
80 gfc_option.warn_implicit_interface = 0;
81 gfc_option.warn_line_truncation = 0;
82 gfc_option.warn_surprising = 0;
83 gfc_option.warn_tabs = 1;
84 gfc_option.warn_underflow = 1;
85 gfc_option.warn_intrinsic_shadow = 0;
86 gfc_option.warn_intrinsics_std = 0;
87 gfc_option.warn_align_commons = 1;
88 gfc_option.max_errors = 25;
90 gfc_option.flag_all_intrinsics = 0;
91 gfc_option.flag_default_double = 0;
92 gfc_option.flag_default_integer = 0;
93 gfc_option.flag_default_real = 0;
94 gfc_option.flag_dollar_ok = 0;
95 gfc_option.flag_underscoring = 1;
96 gfc_option.flag_whole_file = 0;
97 gfc_option.flag_f2c = 0;
98 gfc_option.flag_second_underscore = -1;
99 gfc_option.flag_implicit_none = 0;
101 /* Default value of flag_max_stack_var_size is set in gfc_post_options. */
102 gfc_option.flag_max_stack_var_size = -2;
104 gfc_option.flag_range_check = 1;
105 gfc_option.flag_pack_derived = 0;
106 gfc_option.flag_repack_arrays = 0;
107 gfc_option.flag_preprocessed = 0;
108 gfc_option.flag_automatic = 1;
109 gfc_option.flag_backslash = 0;
110 gfc_option.flag_module_private = 0;
111 gfc_option.flag_backtrace = 0;
112 gfc_option.flag_allow_leading_underscore = 0;
113 gfc_option.flag_dump_core = 0;
114 gfc_option.flag_external_blas = 0;
115 gfc_option.blas_matmul_limit = 30;
116 gfc_option.flag_cray_pointer = 0;
117 gfc_option.flag_d_lines = -1;
118 gfc_option.flag_openmp = 0;
119 gfc_option.flag_sign_zero = 1;
120 gfc_option.flag_recursive = 0;
121 gfc_option.flag_init_integer = GFC_INIT_INTEGER_OFF;
122 gfc_option.flag_init_integer_value = 0;
123 gfc_option.flag_init_real = GFC_INIT_REAL_OFF;
124 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_OFF;
125 gfc_option.flag_init_character = GFC_INIT_CHARACTER_OFF;
126 gfc_option.flag_init_character_value = (char)0;
127 gfc_option.flag_align_commons = 1;
130 gfc_option.rtcheck = 0;
132 /* Argument pointers cannot point to anything but their argument. */
133 flag_argument_noalias = 3;
137 set_default_std_flags ();
139 /* -fshort-enums can be default on some targets. */
140 flag_short_enums = targetm.default_short_enums ();
142 /* Initialize cpp-related options. */
143 gfc_cpp_init_options(argc, argv);
149 /* Determine the source form from the filename extension. We assume
150 case insensitivity. */
152 static gfc_source_form
153 form_from_filename (const char *filename)
157 const char *extension;
158 gfc_source_form form;
185 }; /* sentinel value */
187 gfc_source_form f_form;
191 /* Find end of file name. Note, filename is either a NULL pointer or
192 a NUL terminated string. */
194 while (filename[i] != '\0')
197 /* Find last period. */
198 while (i >= 0 && (filename[i] != '.'))
201 /* Did we see a file extension? */
203 return FORM_UNKNOWN; /* Nope */
205 /* Get file extension and compare it to others. */
206 fileext = &(filename[i]);
209 f_form = FORM_UNKNOWN;
213 if (strcasecmp (fileext, exttype[i].extension) == 0)
215 f_form = exttype[i].form;
219 while (exttype[i].form != FORM_UNKNOWN);
225 /* Finalize commandline options. */
228 gfc_post_options (const char **pfilename)
230 const char *filename = *pfilename, *canon_source_file = NULL;
234 /* Excess precision other than "fast" requires front-end
236 if (flag_excess_precision_cmdline == EXCESS_PRECISION_STANDARD
237 && TARGET_FLT_EVAL_METHOD_NON_DEFAULT)
238 sorry ("-fexcess-precision=standard for Fortran");
239 flag_excess_precision_cmdline = EXCESS_PRECISION_FAST;
241 /* Whole program needs whole file mode. */
242 if (flag_whole_program)
243 gfc_option.flag_whole_file = 1;
245 /* Enable whole-file mode if LTO is in effect. */
246 if (flag_lto || flag_whopr)
247 gfc_option.flag_whole_file = 1;
249 /* -fbounds-check is equivalent to -fcheck=bounds */
250 if (flag_bounds_check)
251 gfc_option.rtcheck |= GFC_RTCHECK_BOUNDS;
253 if (flag_compare_debug)
254 gfc_option.dump_parse_tree = 0;
256 /* Verify the input file name. */
257 if (!filename || strcmp (filename, "-") == 0)
262 if (gfc_option.flag_preprocessed)
264 /* For preprocessed files, if the first tokens are of the form # NUM.
265 handle the directives so we know the original file name. */
266 gfc_source_file = gfc_read_orig_filename (filename, &canon_source_file);
267 if (gfc_source_file == NULL)
268 gfc_source_file = filename;
270 *pfilename = gfc_source_file;
273 gfc_source_file = filename;
275 if (canon_source_file == NULL)
276 canon_source_file = gfc_source_file;
278 /* Adds the path where the source file is to the list of include files. */
280 i = strlen (canon_source_file);
281 while (i > 0 && !IS_DIR_SEPARATOR (canon_source_file[i]))
286 source_path = (char *) alloca (i + 1);
287 memcpy (source_path, canon_source_file, i);
289 gfc_add_include_path (source_path, true, true);
292 gfc_add_include_path (".", true, true);
294 if (canon_source_file != gfc_source_file)
295 gfc_free (CONST_CAST (char *, canon_source_file));
297 /* Decide which form the file will be read in as. */
299 if (gfc_option.source_form != FORM_UNKNOWN)
300 gfc_current_form = gfc_option.source_form;
303 gfc_current_form = form_from_filename (filename);
305 if (gfc_current_form == FORM_UNKNOWN)
307 gfc_current_form = FORM_FREE;
308 gfc_warning_now ("Reading file '%s' as free form",
309 (filename[0] == '\0') ? "<stdin>" : filename);
313 /* If the user specified -fd-lines-as-{code|comments} verify that we're
315 if (gfc_current_form == FORM_FREE)
317 if (gfc_option.flag_d_lines == 0)
318 gfc_warning_now ("'-fd-lines-as-comments' has no effect "
320 else if (gfc_option.flag_d_lines == 1)
321 gfc_warning_now ("'-fd-lines-as-code' has no effect in free form");
324 /* If -pedantic, warn about the use of GNU extensions. */
325 if (pedantic && (gfc_option.allow_std & GFC_STD_GNU) != 0)
326 gfc_option.warn_std |= GFC_STD_GNU;
327 /* -std=legacy -pedantic is effectively -std=gnu. */
328 if (pedantic && (gfc_option.allow_std & GFC_STD_LEGACY) != 0)
329 gfc_option.warn_std |= GFC_STD_F95_OBS | GFC_STD_F95_DEL | GFC_STD_LEGACY;
331 /* If the user didn't explicitly specify -f(no)-second-underscore we
332 use it if we're trying to be compatible with f2c, and not
334 if (gfc_option.flag_second_underscore == -1)
335 gfc_option.flag_second_underscore = gfc_option.flag_f2c;
337 if (!gfc_option.flag_automatic && gfc_option.flag_max_stack_var_size != -2
338 && gfc_option.flag_max_stack_var_size != 0)
339 gfc_warning_now ("Flag -fno-automatic overwrites -fmax-stack-var-size=%d",
340 gfc_option.flag_max_stack_var_size);
341 else if (!gfc_option.flag_automatic && gfc_option.flag_recursive)
342 gfc_warning_now ("Flag -fno-automatic overwrites -frecursive");
343 else if (!gfc_option.flag_automatic && gfc_option.flag_openmp)
344 gfc_warning_now ("Flag -fno-automatic overwrites -frecursive implied by "
346 else if (gfc_option.flag_max_stack_var_size != -2
347 && gfc_option.flag_recursive)
348 gfc_warning_now ("Flag -frecursive overwrites -fmax-stack-var-size=%d",
349 gfc_option.flag_max_stack_var_size);
350 else if (gfc_option.flag_max_stack_var_size != -2
351 && gfc_option.flag_openmp)
352 gfc_warning_now ("Flag -fmax-stack-var-size=%d overwrites -frecursive "
353 "implied by -fopenmp",
354 gfc_option.flag_max_stack_var_size);
356 /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */
357 if (gfc_option.flag_max_stack_var_size == -2 && gfc_option.flag_openmp)
358 gfc_option.flag_max_stack_var_size = -1;
361 if (gfc_option.flag_max_stack_var_size == -2)
362 gfc_option.flag_max_stack_var_size = 32768;
364 /* Implement -frecursive as -fmax-stack-var-size=-1. */
365 if (gfc_option.flag_recursive)
366 gfc_option.flag_max_stack_var_size = -1;
368 /* Implement -fno-automatic as -fmax-stack-var-size=0. */
369 if (!gfc_option.flag_automatic)
370 gfc_option.flag_max_stack_var_size = 0;
374 gfc_option.warn_ampersand = 1;
375 gfc_option.warn_tabs = 0;
378 if (pedantic && gfc_option.flag_whole_file)
379 gfc_option.flag_whole_file = 2;
381 gfc_cpp_post_options ();
383 /* FIXME: return gfc_cpp_preprocess_only ();
385 The return value of this function indicates whether the
386 backend needs to be initialized. On -E, we don't need
387 the backend. However, if we return 'true' here, an
388 ICE occurs. Initializing the backend doesn't hurt much,
389 hence, for now we can live with it as is. */
394 /* Set the options for -Wall. */
397 set_Wall (int setting)
399 gfc_option.warn_aliasing = setting;
400 gfc_option.warn_ampersand = setting;
401 gfc_option.warn_line_truncation = setting;
402 gfc_option.warn_surprising = setting;
403 gfc_option.warn_tabs = !setting;
404 gfc_option.warn_underflow = setting;
405 gfc_option.warn_intrinsic_shadow = setting;
406 gfc_option.warn_intrinsics_std = setting;
407 gfc_option.warn_character_truncation = setting;
409 warn_unused = setting;
410 warn_return_type = setting;
411 warn_switch = setting;
413 /* We save the value of warn_uninitialized, since if they put
414 -Wuninitialized on the command line, we need to generate a
415 warning about not using it without also specifying -O. */
417 warn_uninitialized = 0;
418 else if (warn_uninitialized != 1)
419 warn_uninitialized = 2;
424 gfc_handle_module_path_options (const char *arg)
427 if (gfc_option.module_dir != NULL)
428 gfc_fatal_error ("gfortran: Only one -J option allowed");
430 gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2);
431 strcpy (gfc_option.module_dir, arg);
432 strcat (gfc_option.module_dir, "/");
434 gfc_add_include_path (gfc_option.module_dir, true, false);
439 gfc_handle_fpe_trap_option (const char *arg)
441 int result, pos = 0, n;
442 static const char * const exception[] = { "invalid", "denormal", "zero",
443 "overflow", "underflow",
445 static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL,
446 GFC_FPE_ZERO, GFC_FPE_OVERFLOW,
447 GFC_FPE_UNDERFLOW, GFC_FPE_PRECISION,
455 while (arg[pos] && arg[pos] != ',')
459 for (n = 0; exception[n] != NULL; n++)
461 if (exception[n] && strncmp (exception[n], arg, pos) == 0)
463 gfc_option.fpe |= opt_exception[n];
471 gfc_fatal_error ("Argument to -ffpe-trap is not valid: %s", arg);
477 gfc_handle_runtime_check_option (const char *arg)
479 int result, pos = 0, n;
480 static const char * const optname[] = { "all", "bounds", "array-temps",
481 "recursion", "do", "pointer", NULL };
482 static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS,
483 GFC_RTCHECK_ARRAY_TEMPS,
484 GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO,
493 while (arg[pos] && arg[pos] != ',')
497 for (n = 0; optname[n] != NULL; n++)
499 if (optname[n] && strncmp (optname[n], arg, pos) == 0)
501 gfc_option.rtcheck |= optmask[n];
509 gfc_fatal_error ("Argument to -fcheck is not valid: %s", arg);
514 /* Handle command-line options. Returns 0 if unrecognized, 1 if
515 recognized and handled. */
518 gfc_handle_option (size_t scode, const char *arg, int value)
521 enum opt_code code = (enum opt_code) scode;
523 /* Ignore file names. */
527 if (gfc_cpp_handle_option (scode, arg, value) == 1)
541 gfc_option.warn_aliasing = value;
545 gfc_option.warn_ampersand = value;
548 case OPT_Warray_temporaries:
549 gfc_option.warn_array_temp = value;
552 case OPT_Wcharacter_truncation:
553 gfc_option.warn_character_truncation = value;
556 case OPT_Wconversion:
557 gfc_option.warn_conversion = value;
560 case OPT_Wimplicit_interface:
561 gfc_option.warn_implicit_interface = value;
564 case OPT_Wimplicit_procedure:
565 gfc_option.warn_implicit_procedure = value;
568 case OPT_Wline_truncation:
569 gfc_option.warn_line_truncation = value;
572 case OPT_Wreturn_type:
573 warn_return_type = value;
576 case OPT_Wsurprising:
577 gfc_option.warn_surprising = value;
581 gfc_option.warn_tabs = value;
585 gfc_option.warn_underflow = value;
588 case OPT_Wintrinsic_shadow:
589 gfc_option.warn_intrinsic_shadow = value;
592 case OPT_Walign_commons:
593 gfc_option.warn_align_commons = value;
596 case OPT_fall_intrinsics:
597 gfc_option.flag_all_intrinsics = 1;
601 gfc_option.flag_automatic = value;
604 case OPT_fallow_leading_underscore:
605 gfc_option.flag_allow_leading_underscore = value;
609 gfc_option.flag_backslash = value;
613 gfc_option.flag_backtrace = value;
616 case OPT_fcheck_array_temporaries:
617 gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS;
621 gfc_option.flag_dump_core = value;
624 case OPT_fcray_pointer:
625 gfc_option.flag_cray_pointer = value;
629 gfc_option.flag_f2c = value;
633 gfc_option.flag_dollar_ok = value;
636 case OPT_fexternal_blas:
637 gfc_option.flag_external_blas = value;
640 case OPT_fblas_matmul_limit_:
641 gfc_option.blas_matmul_limit = value;
644 case OPT_fd_lines_as_code:
645 gfc_option.flag_d_lines = 1;
648 case OPT_fd_lines_as_comments:
649 gfc_option.flag_d_lines = 0;
652 case OPT_fdump_parse_tree:
653 gfc_option.dump_parse_tree = value;
656 case OPT_ffixed_form:
657 gfc_option.source_form = FORM_FIXED;
660 case OPT_ffixed_line_length_none:
661 gfc_option.fixed_line_length = 0;
664 case OPT_ffixed_line_length_:
665 if (value != 0 && value < 7)
666 gfc_fatal_error ("Fixed line length must be at least seven.");
667 gfc_option.fixed_line_length = value;
671 gfc_option.source_form = FORM_FREE;
675 gfc_option.flag_openmp = value;
678 case OPT_ffree_line_length_none:
679 gfc_option.free_line_length = 0;
682 case OPT_ffree_line_length_:
683 if (value != 0 && value < 4)
684 gfc_fatal_error ("Free line length must be at least three.");
685 gfc_option.free_line_length = value;
688 case OPT_funderscoring:
689 gfc_option.flag_underscoring = value;
692 case OPT_fwhole_file:
693 gfc_option.flag_whole_file = 1;
696 case OPT_fsecond_underscore:
697 gfc_option.flag_second_underscore = value;
700 case OPT_static_libgfortran:
701 #ifndef HAVE_LD_STATIC_DYNAMIC
702 gfc_fatal_error ("-static-libgfortran is not supported in this "
707 case OPT_fimplicit_none:
708 gfc_option.flag_implicit_none = value;
711 case OPT_fintrinsic_modules_path:
712 gfc_add_include_path (arg, false, false);
713 gfc_add_intrinsic_modules_path (arg);
716 case OPT_fmax_array_constructor_:
717 gfc_option.flag_max_array_constructor = value > 65535 ? value : 65535;
720 case OPT_fmax_errors_:
721 gfc_option.max_errors = value;
724 case OPT_fmax_stack_var_size_:
725 gfc_option.flag_max_stack_var_size = value;
728 case OPT_fmodule_private:
729 gfc_option.flag_module_private = value;
732 case OPT_frange_check:
733 gfc_option.flag_range_check = value;
736 case OPT_fpack_derived:
737 gfc_option.flag_pack_derived = value;
740 case OPT_frepack_arrays:
741 gfc_option.flag_repack_arrays = value;
744 case OPT_fpreprocessed:
745 gfc_option.flag_preprocessed = value;
748 case OPT_fmax_identifier_length_:
749 if (value > GFC_MAX_SYMBOL_LEN)
750 gfc_fatal_error ("Maximum supported identifier length is %d",
752 gfc_option.max_identifier_length = value;
755 case OPT_fdefault_integer_8:
756 gfc_option.flag_default_integer = value;
759 case OPT_fdefault_real_8:
760 gfc_option.flag_default_real = value;
763 case OPT_fdefault_double_8:
764 gfc_option.flag_default_double = value;
767 case OPT_finit_local_zero:
768 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
769 gfc_option.flag_init_integer_value = 0;
770 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
771 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
772 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
773 gfc_option.flag_init_character_value = (char)0;
776 case OPT_finit_logical_:
777 if (!strcasecmp (arg, "false"))
778 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
779 else if (!strcasecmp (arg, "true"))
780 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE;
782 gfc_fatal_error ("Unrecognized option to -finit-logical: %s",
786 case OPT_finit_real_:
787 if (!strcasecmp (arg, "zero"))
788 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
789 else if (!strcasecmp (arg, "nan"))
790 gfc_option.flag_init_real = GFC_INIT_REAL_NAN;
791 else if (!strcasecmp (arg, "snan"))
792 gfc_option.flag_init_real = GFC_INIT_REAL_SNAN;
793 else if (!strcasecmp (arg, "inf"))
794 gfc_option.flag_init_real = GFC_INIT_REAL_INF;
795 else if (!strcasecmp (arg, "-inf"))
796 gfc_option.flag_init_real = GFC_INIT_REAL_NEG_INF;
798 gfc_fatal_error ("Unrecognized option to -finit-real: %s",
802 case OPT_finit_integer_:
803 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
804 gfc_option.flag_init_integer_value = atoi (arg);
807 case OPT_finit_character_:
808 if (value >= 0 && value <= 127)
810 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
811 gfc_option.flag_init_character_value = (char)value;
814 gfc_fatal_error ("The value of n in -finit-character=n must be "
815 "between 0 and 127");
819 gfc_add_include_path (arg, true, false);
823 gfc_handle_module_path_options (arg);
827 gfc_option.flag_sign_zero = value;
831 gfc_handle_fpe_trap_option (arg);
835 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77;
836 gfc_option.warn_std = GFC_STD_F95_OBS;
837 gfc_option.max_continue_fixed = 19;
838 gfc_option.max_continue_free = 39;
839 gfc_option.max_identifier_length = 31;
840 gfc_option.warn_ampersand = 1;
841 gfc_option.warn_tabs = 0;
845 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
846 | GFC_STD_F2003 | GFC_STD_F95;
847 gfc_option.warn_std = GFC_STD_F95_OBS;
848 gfc_option.max_identifier_length = 63;
849 gfc_option.warn_ampersand = 1;
850 gfc_option.warn_tabs = 0;
854 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
855 | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008;
856 gfc_option.warn_std = GFC_STD_F95_OBS;
857 gfc_option.max_identifier_length = 63;
858 gfc_option.warn_ampersand = 1;
859 gfc_option.warn_tabs = 0;
863 set_default_std_flags ();
867 set_default_std_flags ();
868 gfc_option.warn_std = 0;
871 case OPT_Wintrinsics_std:
872 gfc_option.warn_intrinsics_std = value;
875 case OPT_fshort_enums:
876 flag_short_enums = 1;
879 case OPT_fconvert_little_endian:
880 gfc_option.convert = GFC_CONVERT_LITTLE;
883 case OPT_fconvert_big_endian:
884 gfc_option.convert = GFC_CONVERT_BIG;
887 case OPT_fconvert_native:
888 gfc_option.convert = GFC_CONVERT_NATIVE;
891 case OPT_fconvert_swap:
892 gfc_option.convert = GFC_CONVERT_SWAP;
895 case OPT_frecord_marker_4:
896 gfc_option.record_marker = 4;
899 case OPT_frecord_marker_8:
900 gfc_option.record_marker = 8;
903 case OPT_fmax_subrecord_length_:
904 if (value > MAX_SUBRECORD_LENGTH)
905 gfc_fatal_error ("Maximum subrecord length cannot exceed %d",
906 MAX_SUBRECORD_LENGTH);
908 gfc_option.max_subrecord_length = value;
912 gfc_option.flag_recursive = 1;
915 case OPT_falign_commons:
916 gfc_option.flag_align_commons = value;
920 gfc_handle_runtime_check_option (arg);