Fix for tolower extension signed char issue
@@ -524,9 +524,9 @@ restart:
char extension[4] = {0,};
if (path_length > 4) {
if (filename[path_length - 4] == '.') {
- extension[0] = tolower(filename[path_length - 3]);
- extension[1] = tolower(filename[path_length - 2]);
- extension[2] = tolower(filename[path_length - 1]);
+ extension[0] = tolower((unsigned char)filename[path_length - 3]);
+ extension[1] = tolower((unsigned char)filename[path_length - 2]);
+ extension[2] = tolower((unsigned char)filename[path_length - 1]);
}
}
if (strcmp(extension, "isx") == 0) {
