Merge pull request #295 from fluendo/fix-mingw-ucrt

Fix build with MinGW and the ucrtbase CRT
diff --git a/usrsctplib/user_malloc.h b/usrsctplib/user_malloc.h
index 73904ca..8d4fe82 100755
--- a/usrsctplib/user_malloc.h
+++ b/usrsctplib/user_malloc.h
@@ -41,7 +41,7 @@
 #include <strings.h>
 #include <stdint.h>
 #else
-#if defined(_MSC_VER) && _MSC_VER >= 1600
+#if (defined(_MSC_VER) && _MSC_VER >= 1600) || (defined(__MSVCRT_VERSION__) && __MSVCRT_VERSION__ >= 1400)
 #include <stdint.h>
 #elif defined(SCTP_STDINT_INCLUDE)
 #include SCTP_STDINT_INCLUDE