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 /* Implement -frecursive as -fmax-stack-var-size=-1. */
357 if (gfc_option.flag_recursive)
358 gfc_option.flag_max_stack_var_size = -1;
360 /* Implied -frecursive; implemented as -fmax-stack-var-size=-1. */
361 if (gfc_option.flag_max_stack_var_size == -2 && gfc_option.flag_openmp
362 && gfc_option.flag_automatic)
364 gfc_option.flag_recursive = 1;
365 gfc_option.flag_max_stack_var_size = -1;
369 if (gfc_option.flag_max_stack_var_size == -2)
370 gfc_option.flag_max_stack_var_size = 32768;
372 /* Implement -fno-automatic as -fmax-stack-var-size=0. */
373 if (!gfc_option.flag_automatic)
374 gfc_option.flag_max_stack_var_size = 0;
378 gfc_option.warn_ampersand = 1;
379 gfc_option.warn_tabs = 0;
382 if (pedantic && gfc_option.flag_whole_file)
383 gfc_option.flag_whole_file = 2;
385 gfc_cpp_post_options ();
387 /* FIXME: return gfc_cpp_preprocess_only ();
389 The return value of this function indicates whether the
390 backend needs to be initialized. On -E, we don't need
391 the backend. However, if we return 'true' here, an
392 ICE occurs. Initializing the backend doesn't hurt much,
393 hence, for now we can live with it as is. */
398 /* Set the options for -Wall. */
401 set_Wall (int setting)
403 gfc_option.warn_aliasing = setting;
404 gfc_option.warn_ampersand = setting;
405 gfc_option.warn_line_truncation = setting;
406 gfc_option.warn_surprising = setting;
407 gfc_option.warn_tabs = !setting;
408 gfc_option.warn_underflow = setting;
409 gfc_option.warn_intrinsic_shadow = setting;
410 gfc_option.warn_intrinsics_std = setting;
411 gfc_option.warn_character_truncation = setting;
413 warn_unused = setting;
414 warn_return_type = setting;
415 warn_switch = setting;
417 /* We save the value of warn_uninitialized, since if they put
418 -Wuninitialized on the command line, we need to generate a
419 warning about not using it without also specifying -O. */
421 warn_uninitialized = 0;
422 else if (warn_uninitialized != 1)
423 warn_uninitialized = 2;
428 gfc_handle_module_path_options (const char *arg)
431 if (gfc_option.module_dir != NULL)
432 gfc_fatal_error ("gfortran: Only one -J option allowed");
434 gfc_option.module_dir = (char *) gfc_getmem (strlen (arg) + 2);
435 strcpy (gfc_option.module_dir, arg);
436 strcat (gfc_option.module_dir, "/");
438 gfc_add_include_path (gfc_option.module_dir, true, false);
443 gfc_handle_fpe_trap_option (const char *arg)
445 int result, pos = 0, n;
446 static const char * const exception[] = { "invalid", "denormal", "zero",
447 "overflow", "underflow",
449 static const int opt_exception[] = { GFC_FPE_INVALID, GFC_FPE_DENORMAL,
450 GFC_FPE_ZERO, GFC_FPE_OVERFLOW,
451 GFC_FPE_UNDERFLOW, GFC_FPE_PRECISION,
459 while (arg[pos] && arg[pos] != ',')
463 for (n = 0; exception[n] != NULL; n++)
465 if (exception[n] && strncmp (exception[n], arg, pos) == 0)
467 gfc_option.fpe |= opt_exception[n];
475 gfc_fatal_error ("Argument to -ffpe-trap is not valid: %s", arg);
481 gfc_handle_runtime_check_option (const char *arg)
483 int result, pos = 0, n;
484 static const char * const optname[] = { "all", "bounds", "array-temps",
485 "recursion", "do", "pointer", NULL };
486 static const int optmask[] = { GFC_RTCHECK_ALL, GFC_RTCHECK_BOUNDS,
487 GFC_RTCHECK_ARRAY_TEMPS,
488 GFC_RTCHECK_RECURSION, GFC_RTCHECK_DO,
497 while (arg[pos] && arg[pos] != ',')
501 for (n = 0; optname[n] != NULL; n++)
503 if (optname[n] && strncmp (optname[n], arg, pos) == 0)
505 gfc_option.rtcheck |= optmask[n];
513 gfc_fatal_error ("Argument to -fcheck is not valid: %s", arg);
518 /* Handle command-line options. Returns 0 if unrecognized, 1 if
519 recognized and handled. */
522 gfc_handle_option (size_t scode, const char *arg, int value)
525 enum opt_code code = (enum opt_code) scode;
527 /* Ignore file names. */
531 if (gfc_cpp_handle_option (scode, arg, value) == 1)
545 gfc_option.warn_aliasing = value;
549 gfc_option.warn_ampersand = value;
552 case OPT_Warray_temporaries:
553 gfc_option.warn_array_temp = value;
556 case OPT_Wcharacter_truncation:
557 gfc_option.warn_character_truncation = value;
560 case OPT_Wconversion:
561 gfc_option.warn_conversion = value;
564 case OPT_Wimplicit_interface:
565 gfc_option.warn_implicit_interface = value;
568 case OPT_Wimplicit_procedure:
569 gfc_option.warn_implicit_procedure = value;
572 case OPT_Wline_truncation:
573 gfc_option.warn_line_truncation = value;
576 case OPT_Wreturn_type:
577 warn_return_type = value;
580 case OPT_Wsurprising:
581 gfc_option.warn_surprising = value;
585 gfc_option.warn_tabs = value;
589 gfc_option.warn_underflow = value;
592 case OPT_Wintrinsic_shadow:
593 gfc_option.warn_intrinsic_shadow = value;
596 case OPT_Walign_commons:
597 gfc_option.warn_align_commons = value;
600 case OPT_fall_intrinsics:
601 gfc_option.flag_all_intrinsics = 1;
605 gfc_option.flag_automatic = value;
608 case OPT_fallow_leading_underscore:
609 gfc_option.flag_allow_leading_underscore = value;
613 gfc_option.flag_backslash = value;
617 gfc_option.flag_backtrace = value;
620 case OPT_fcheck_array_temporaries:
621 gfc_option.rtcheck |= GFC_RTCHECK_ARRAY_TEMPS;
625 gfc_option.flag_dump_core = value;
628 case OPT_fcray_pointer:
629 gfc_option.flag_cray_pointer = value;
633 gfc_option.flag_f2c = value;
637 gfc_option.flag_dollar_ok = value;
640 case OPT_fexternal_blas:
641 gfc_option.flag_external_blas = value;
644 case OPT_fblas_matmul_limit_:
645 gfc_option.blas_matmul_limit = value;
648 case OPT_fd_lines_as_code:
649 gfc_option.flag_d_lines = 1;
652 case OPT_fd_lines_as_comments:
653 gfc_option.flag_d_lines = 0;
656 case OPT_fdump_parse_tree:
657 gfc_option.dump_parse_tree = value;
660 case OPT_ffixed_form:
661 gfc_option.source_form = FORM_FIXED;
664 case OPT_ffixed_line_length_none:
665 gfc_option.fixed_line_length = 0;
668 case OPT_ffixed_line_length_:
669 if (value != 0 && value < 7)
670 gfc_fatal_error ("Fixed line length must be at least seven.");
671 gfc_option.fixed_line_length = value;
675 gfc_option.source_form = FORM_FREE;
679 gfc_option.flag_openmp = value;
682 case OPT_ffree_line_length_none:
683 gfc_option.free_line_length = 0;
686 case OPT_ffree_line_length_:
687 if (value != 0 && value < 4)
688 gfc_fatal_error ("Free line length must be at least three.");
689 gfc_option.free_line_length = value;
692 case OPT_funderscoring:
693 gfc_option.flag_underscoring = value;
696 case OPT_fwhole_file:
697 gfc_option.flag_whole_file = 1;
700 case OPT_fsecond_underscore:
701 gfc_option.flag_second_underscore = value;
704 case OPT_static_libgfortran:
705 #ifndef HAVE_LD_STATIC_DYNAMIC
706 gfc_fatal_error ("-static-libgfortran is not supported in this "
711 case OPT_fimplicit_none:
712 gfc_option.flag_implicit_none = value;
715 case OPT_fintrinsic_modules_path:
716 gfc_add_include_path (arg, false, false);
717 gfc_add_intrinsic_modules_path (arg);
720 case OPT_fmax_array_constructor_:
721 gfc_option.flag_max_array_constructor = value > 65535 ? value : 65535;
724 case OPT_fmax_errors_:
725 gfc_option.max_errors = value;
728 case OPT_fmax_stack_var_size_:
729 gfc_option.flag_max_stack_var_size = value;
732 case OPT_fmodule_private:
733 gfc_option.flag_module_private = value;
736 case OPT_frange_check:
737 gfc_option.flag_range_check = value;
740 case OPT_fpack_derived:
741 gfc_option.flag_pack_derived = value;
744 case OPT_frepack_arrays:
745 gfc_option.flag_repack_arrays = value;
748 case OPT_fpreprocessed:
749 gfc_option.flag_preprocessed = value;
752 case OPT_fmax_identifier_length_:
753 if (value > GFC_MAX_SYMBOL_LEN)
754 gfc_fatal_error ("Maximum supported identifier length is %d",
756 gfc_option.max_identifier_length = value;
759 case OPT_fdefault_integer_8:
760 gfc_option.flag_default_integer = value;
763 case OPT_fdefault_real_8:
764 gfc_option.flag_default_real = value;
767 case OPT_fdefault_double_8:
768 gfc_option.flag_default_double = value;
771 case OPT_finit_local_zero:
772 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
773 gfc_option.flag_init_integer_value = 0;
774 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
775 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
776 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
777 gfc_option.flag_init_character_value = (char)0;
780 case OPT_finit_logical_:
781 if (!strcasecmp (arg, "false"))
782 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_FALSE;
783 else if (!strcasecmp (arg, "true"))
784 gfc_option.flag_init_logical = GFC_INIT_LOGICAL_TRUE;
786 gfc_fatal_error ("Unrecognized option to -finit-logical: %s",
790 case OPT_finit_real_:
791 if (!strcasecmp (arg, "zero"))
792 gfc_option.flag_init_real = GFC_INIT_REAL_ZERO;
793 else if (!strcasecmp (arg, "nan"))
794 gfc_option.flag_init_real = GFC_INIT_REAL_NAN;
795 else if (!strcasecmp (arg, "snan"))
796 gfc_option.flag_init_real = GFC_INIT_REAL_SNAN;
797 else if (!strcasecmp (arg, "inf"))
798 gfc_option.flag_init_real = GFC_INIT_REAL_INF;
799 else if (!strcasecmp (arg, "-inf"))
800 gfc_option.flag_init_real = GFC_INIT_REAL_NEG_INF;
802 gfc_fatal_error ("Unrecognized option to -finit-real: %s",
806 case OPT_finit_integer_:
807 gfc_option.flag_init_integer = GFC_INIT_INTEGER_ON;
808 gfc_option.flag_init_integer_value = atoi (arg);
811 case OPT_finit_character_:
812 if (value >= 0 && value <= 127)
814 gfc_option.flag_init_character = GFC_INIT_CHARACTER_ON;
815 gfc_option.flag_init_character_value = (char)value;
818 gfc_fatal_error ("The value of n in -finit-character=n must be "
819 "between 0 and 127");
823 gfc_add_include_path (arg, true, false);
827 gfc_handle_module_path_options (arg);
831 gfc_option.flag_sign_zero = value;
835 gfc_handle_fpe_trap_option (arg);
839 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F95 | GFC_STD_F77;
840 gfc_option.warn_std = GFC_STD_F95_OBS;
841 gfc_option.max_continue_fixed = 19;
842 gfc_option.max_continue_free = 39;
843 gfc_option.max_identifier_length = 31;
844 gfc_option.warn_ampersand = 1;
845 gfc_option.warn_tabs = 0;
849 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
850 | GFC_STD_F2003 | GFC_STD_F95;
851 gfc_option.warn_std = GFC_STD_F95_OBS;
852 gfc_option.max_identifier_length = 63;
853 gfc_option.warn_ampersand = 1;
854 gfc_option.warn_tabs = 0;
858 gfc_option.allow_std = GFC_STD_F95_OBS | GFC_STD_F77
859 | GFC_STD_F2003 | GFC_STD_F95 | GFC_STD_F2008;
860 gfc_option.warn_std = GFC_STD_F95_OBS;
861 gfc_option.max_identifier_length = 63;
862 gfc_option.warn_ampersand = 1;
863 gfc_option.warn_tabs = 0;
867 set_default_std_flags ();
871 set_default_std_flags ();
872 gfc_option.warn_std = 0;
875 case OPT_Wintrinsics_std:
876 gfc_option.warn_intrinsics_std = value;
879 case OPT_fshort_enums:
880 flag_short_enums = 1;
883 case OPT_fconvert_little_endian:
884 gfc_option.convert = GFC_CONVERT_LITTLE;
887 case OPT_fconvert_big_endian:
888 gfc_option.convert = GFC_CONVERT_BIG;
891 case OPT_fconvert_native:
892 gfc_option.convert = GFC_CONVERT_NATIVE;
895 case OPT_fconvert_swap:
896 gfc_option.convert = GFC_CONVERT_SWAP;
899 case OPT_frecord_marker_4:
900 gfc_option.record_marker = 4;
903 case OPT_frecord_marker_8:
904 gfc_option.record_marker = 8;
907 case OPT_fmax_subrecord_length_:
908 if (value > MAX_SUBRECORD_LENGTH)
909 gfc_fatal_error ("Maximum subrecord length cannot exceed %d",
910 MAX_SUBRECORD_LENGTH);
912 gfc_option.max_subrecord_length = value;
916 gfc_option.flag_recursive = 1;
919 case OPT_falign_commons:
920 gfc_option.flag_align_commons = value;
924 gfc_handle_runtime_check_option (arg);