compat BUGFIX missing strncasecmp alias
diff --git a/compat/posix-shims/strings.h b/compat/posix-shims/strings.h
index c917a66..1ac0519 100644
--- a/compat/posix-shims/strings.h
+++ b/compat/posix-shims/strings.h
@@ -7,3 +7,11 @@
 #error No strcasecmp() implementation for this platform is available.
 #endif
 #endif
+
+#ifndef HAVE_STRNCASECMP
+#ifdef _MSC_VER
+#define strncasecmp _strnicmp
+#else
+#error No strncasecmp() implementation for this platform is available.
+#endif
+#endif