Fix a problem generating an error while using flag -h

src/blc_program.cpp

@@ -307,7 +307,15 @@ static void blc_program_interpret_parameters(int *argc, char **argv[]){
                 if ((*argc)==0){//There is no more argument to interpret
                     if (blc_program_parameters[i].required_nb){
                         if (isatty(STDIN_FILENO)) fprintf(stderr, "%s: %s? ", blc_program_parameters[i].help, blc_program_parameters[i].name);
-                        SYSTEM_ERROR_CHECK(parameter_read=getline(&tmp_parameter, &linecap, stdin), -1, "Reading input for parameter");
+
+                        parameter_read=getline(&tmp_parameter, &linecap, stdin);
+                        if (parameter_read==-1){
+                        	if (errno==ENOTTY) {
+                        		color_eprintf(BLC_RED, "\nQuitting '%s': The standard input is not available. You probably have a program on an input pipe which has crashed\n", blc_program_name);
+                        		exit(1);
+                        	}
+                        	else EXIT_ON_SYSTEM_ERROR("Reading input for parameter");
+                        }
                         tmp_parameter[parameter_read-1]=0;//Remove the last return;
                         (*blc_program_parameters[i].string_pt)=tmp_parameter;
                         linecap=0;
@@ -480,14 +488,13 @@ void blc_program_init(int *argc, char ***argv, void (*exit_cb)(void))
     
     blc_program_add_option(&help, 'h', "help", 0, "display this help", NULL);
     blc_program_parse_args_and_print_title(argc, argv);
-    blc_program_check_full_parsing(*argc, *argv);
-
-    
     if (help){
         blc_program_args_display_help();
         exit(EXIT_SUCCESS);
     }
     
+    blc_program_check_full_parsing(*argc, *argv);
+
     atexit(blc_quit);
     if (exit_cb) atexit(exit_cb); //This will be called first
 }