--- rts/builds/dedicated/CMakeLists.txt.old	2013-03-31 15:54:40.899139309 +0300
+++ rts/builds/dedicated/CMakeLists.txt	2013-03-31 16:03:46.763991972 +0300
@@ -43,6 +43,8 @@
 	INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include/SDL)
 ENDIF (MINGW OR APPLE)
 
+FIND_PACKAGE(ZLIB REQUIRED)
+LIST(APPEND engineDedicatedLibraries ${ZLIB_LIBRARY})
 
 ### Assemble the incude dirs
 INCLUDE_DIRECTORIES(${ENGINE_SRC_ROOT_DIR}/)
--- rts/builds/default/CMakeLists.txt.old	2013-03-31 15:55:47.795508521 +0300
+++ rts/builds/default/CMakeLists.txt	2013-03-31 16:02:52.518503511 +0300
@@ -87,6 +87,9 @@
 	SET(ENGINE_ICON "")
 ENDIF (WIN32)
 
+FIND_PACKAGE(ZLIB REQUIRED)
+LIST(APPEND engineLibraries ${ZLIB_LIBRARY})
+
 ### allow engineLibraries to be used in multithreaded, too
 MakeGlobal(engineLibraries)
 MakeGlobal(engineIncludes)
--- rts/builds/headless/CMakeLists.txt.old	2013-03-31 15:57:43.874413963 +0300
+++ rts/builds/headless/CMakeLists.txt	2013-03-31 16:04:39.195497535 +0300
@@ -31,6 +31,8 @@
 	INCLUDE_DIRECTORIES(${CMAKE_SOURCE_DIR}/include/SDL)
 ENDIF (MINGW OR APPLE)
 
+FIND_PACKAGE(ZLIB REQUIRED)
+LIST(APPEND engineHeadlessLibraries ${ZLIB_LIBRARY})
 
 # headlessstubs are our stubs that replace libGL, libGLU, libGLEW, libSDL (yes really!)
 LIST(APPEND engineHeadlessLibraries headlessStubs)