diff --git a/intern/elbeem/CMakeLists.txt b/intern/elbeem/CMakeLists.txt
index 45e9b95e5ff..d73d0c3e06d 100644
--- a/intern/elbeem/CMakeLists.txt
+++ b/intern/elbeem/CMakeLists.txt
@@ -24,7 +24,7 @@
 #
 # ***** END GPL LICENSE BLOCK *****
 
-SET(INC ${PNG_INC} ${ZLIB_INC} ${SDL_INC})
+SET(INC ${PNG_INC} ${ZLIB_INC} ${SDL_INC} extern)
 
 FILE(GLOB SRC intern/*.cpp)
 
diff --git a/intern/elbeem/intern/mvmcoords.h b/intern/elbeem/intern/mvmcoords.h
index 6c24482501f..51b0958ed78 100644
--- a/intern/elbeem/intern/mvmcoords.h
+++ b/intern/elbeem/intern/mvmcoords.h
@@ -21,6 +21,7 @@
 
 #ifdef WIN32
 #ifndef FREE_WINDOWS
+#include "float.h"
 #define isnan(n) _isnan(n)
 #define finite _finite
 #endif