Attempt to fix build error on Windows

Was failing since 1efc94bb2f, probably because some include uses
`std::min()`/`std::max()` which messes with the windows min/max defines.

source/blender/editors/space_file/CMakeLists.txt

@@ -46,6 +46,10 @@ set(LIB
   bf_blenkernel
 )
 
+if(WIN32)
+  add_definitions(-DNOMINMAX)
+endif()
+
 if(WITH_HEADLESS)
   add_definitions(-DWITH_HEADLESS)
 else()