https://bugs.gentoo.org/646188
--- a/ttaenc.h
+++ b/ttaenc.h
@@ -41,6 +41,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
+#include <stdint.h>
 #endif
 
 #ifdef _MSC
@@ -101,8 +102,8 @@
 typedef unsigned __int32 uint32;
 typedef unsigned __int64 uint64;
 #else
-typedef __uint32_t uint32;
-typedef __uint64_t uint64;
+typedef uint32_t uint32;
+typedef uint64_t uint64;
 #endif
 
 #define PREDICTOR1(x, k)	((int)((((uint64)x << k) - x) >> k))