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()