diff --git a/mercurial/mpatch.c b/mercurial/mpatch.c
--- a/mercurial/mpatch.c
+++ b/mercurial/mpatch.c
@@ -24,6 +24,7 @@
 #include <stdlib.h>
 #include <string.h>
 #ifdef _WIN32
+#include <stdint.h>
 static uint32_t ntohl(uint32_t x)
 {
 	return ((x & 0x000000ffUL) << 24) |
@@ -32,6 +33,7 @@ static uint32_t ntohl(uint32_t x)
 		((x & 0xff000000UL) >> 24);
 }
 #else
+#include <sys/types.h>
 #include <netinet/in.h>
 #endif