diff -up ./CMakeLists.txt.cmakefix ./CMakeLists.txt
--- ./CMakeLists.txt.cmakefix	2017-08-20 10:57:23.929560910 -0400
+++ ./CMakeLists.txt	2017-08-20 10:57:30.692546169 -0400
@@ -186,7 +186,7 @@ set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}
 # OS Specific initialization
 if (UNIX)
   sdf_setup_unix()
-else (WIN32)
+elseif (WIN32)
   sdf_setup_windows()
 else (APPLE)
   sdf_setup_apple()