Merge pull request #911 from LaurensVoerman/FbxSdkFix

Fix for older versions of fbxsdk without xml or zlib libraries,

src/osgPlugins/fbx/CMakeLists.txt

@@ -33,13 +33,11 @@ ELSEIF(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
 
 ENDIF()
 
+SET(TARGET_LIBRARIES_VARS FBX_LIBRARY)
 IF(WIN32)
     OPTION(FBX_SHARED OFF)
     IF(FBX_SHARED)
         ADD_DEFINITIONS(-DFBXSDK_SHARED)
-    ELSE()
-        SET(TARGET_EXTERNAL_LIBRARIES ${FBX_XML2_LIBRARY})
-        SET(TARGET_EXTERNAL_LIBRARIES ${FBX_ZLIB_LIBNAME})
     ENDIF(FBX_SHARED)
 
     SET(TARGET_EXTERNAL_LIBRARIES wininet)
@@ -51,12 +49,13 @@ IF(APPLE)
     SET(TARGET_EXTERNAL_LIBRARIES iconv ${SYS_CONFIG_LIBRARY})
 ENDIF(APPLE)
 
-SET(TARGET_LIBRARIES_VARS FBX_LIBRARY)
-IF (CMAKE_BUILD_TYPE MATCHES "debug" OR CMAKE_BUILD_TYPE MATCHES "DEBUG")
-    SET(TARGET_ADDED_LIBRARIES osgAnimation ${FBX_XML2_LIBRARY_DEBUG})
-ELSE()
-    SET(TARGET_ADDED_LIBRARIES osgAnimation ${FBX_XML2_LIBRARY})
-ENDIF()
+IF(FBX_XML2_LIBRARY)
+    SET(TARGET_LIBRARIES_VARS ${TARGET_LIBRARIES_VARS} FBX_XML2_LIBRARY)
+ENDIF(FBX_XML2_LIBRARY)
+IF(FBX_ZLIB_LIBRARY)
+    SET(TARGET_LIBRARIES_VARS ${TARGET_LIBRARIES_VARS} FBX_ZLIB_LIBRARY)
+ENDIF(FBX_ZLIB_LIBRARY)
 
+SET(TARGET_ADDED_LIBRARIES osgAnimation)
 #### end var setup  ###
 SETUP_PLUGIN(fbx)