diff options
Diffstat (limited to 'gcc/opts.c')
| -rw-r--r-- | gcc/opts.c | 46 |
1 files changed, 43 insertions, 3 deletions
@@ -181,7 +181,8 @@ base_of_path (const char *path, const char **base_out) } /* What to print when a switch has no documentation. */ -static const char undocumented_msg[] = N_("This switch lacks documentation"); +static const char undocumented_msg[] = N_("This option lacks documentation."); +static const char use_diagnosed_msg[] = N_("Uses of this option are diagnosed."); typedef char *char_p; /* For DEF_VEC_P. */ @@ -1012,7 +1013,7 @@ print_filtered_help (unsigned int include_flags, const char *help; bool found = false; bool displayed = false; - char new_help[128]; + char new_help[256]; if (include_flags == CL_PARAMS) { @@ -1088,9 +1089,48 @@ print_filtered_help (unsigned int include_flags, { if (exclude_flags & CL_UNDOCUMENTED) continue; + help = undocumented_msg; } + if (option->alias_target < N_OPTS + && cl_options [option->alias_target].help) + { + if (help == undocumented_msg) + { + /* For undocumented options that are aliases for other options + that are documented, point the reader to the other option in + preference of the former. */ + snprintf (new_help, sizeof new_help, + _("Same as %s. Use the latter option instead."), + cl_options [option->alias_target].opt_text); + } + else + { + /* For documented options with aliases, mention the aliased + option's name for reference. */ + snprintf (new_help, sizeof new_help, + _("%s Same as %s."), + help, cl_options [option->alias_target].opt_text); + } + + help = new_help; + } + + if (option->warn_message) + { + /* Mention that the use of the option will trigger a warning. */ + if (help == new_help) + snprintf (new_help + strlen (new_help), + sizeof new_help - strlen (new_help), + " %s", _(use_diagnosed_msg)); + else + snprintf (new_help, sizeof new_help, + "%s %s", help, _(use_diagnosed_msg)); + + help = new_help; + } + /* Get the translation. */ help = _(help); @@ -1180,7 +1220,7 @@ print_filtered_help (unsigned int include_flags, options supported by a specific front end. */ for (i = 0; (1U << i) < CL_LANG_ALL; i ++) if ((1U << i) & langs) - printf (_(" None found. Use --help=%s to show *all* the options supported by the %s front-end\n"), + printf (_(" None found. Use --help=%s to show *all* the options supported by the %s front-end.\n"), lang_names[i], lang_names[i]); } |