1 files changed, 12 insertions, 0 deletions
diff --git a/common.h b/common.h
index d8a9622..a9386be 100644
--- a/common.h
+++ b/common.h
@@ -10,6 +10,18 @@
 
 #define BITMASK(n) (UINTMAX_MAX >> (sizeof (uintmax_t) * CHAR_BIT - n))
 
+#ifndef PRIuSIZE
+   #ifdef _WIN32
+      #ifdef _WIN64
+         #define PRIuSIZE PRIu64
+      #else
+         #define PRIuSIZE PRIu32
+      #endif
+   #else
+      #define PRIuSIZE "zu"
+   #endif
+#endif
+
 enum endian { BIG, LITTLE };
 
 size_t getsize(char c);