Add #include <stdint.h> for uint[32|64]_t usage (except installed headers).

crypt/sha256-crypt.c

@@ -22,6 +22,7 @@
 #include <stdbool.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdint.h>
 #include <sys/param.h>
 
 #include "sha256.h"