complaining about a `const` property on one side but not the other.
#define UTIL_FILESIZE_UNKNOWN ((U64)(-1))
U64 UTIL_getFileSize(const char* infilename);
-U64 UTIL_getTotalFileSize(const char* const * const fileNamesTable, unsigned nbFiles);
+U64 UTIL_getTotalFileSize(const char* const * fileNamesTable, unsigned nbFiles);
int UTIL_getFileStat(const char* infilename, stat_t* statbuf);
int UTIL_setFileStat(const char* filename, stat_t* statbuf);
int UTIL_chmod(char const* filename, mode_t permissions); /*< like chmod, but avoid changing permission of /dev/null */