More windows accommodation

Author: SeanCurtis-TRI

CMakeLists.txt

@@ -342,7 +342,13 @@ add_subdirectory(include/fcl)
 
 set(PKG_DESC "Flexible Collision Library")
 
+if(WIN32)
+# It's not clear what is necessary to make C++17 and eigen play together nicely
+# on windows. TODO: FIgure this out.
+set(CMAKE_CXX_STANDARD 14)
+else()
 set(CMAKE_CXX_STANDARD 17)
+endif()
 
 configure_file(fcl.pc.in fcl.pc @ONLY)