Unable to statically link without change to CMakeLists.txt

[tmathews]

Hi, I currently have to add the following to CMakeLists.txt in order to link statically:

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f4f21ef..6699049 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -81,6 +81,8 @@ if(BUILD_SHARED_LIBS)
 
     set_target_properties(tmx PROPERTIES SOVERSION ${API_VERSION})
     set_target_properties(tmx PROPERTIES VERSION ${BUILD_VERSION})
+else()
+    target_compile_definitions(tmx PRIVATE LIBXML_STATIC)
 endif()
 
 # --  Installation

Just wondering if this actually needs to be applied or if I'm doing something wrong. Once I build with this patch I am able to correctly statically link my program.