--- ./rts/builds/headless/CMakeLists.txt.old	2014-11-01 06:56:26.170834065 +0200
+++ ./rts/builds/headless/CMakeLists.txt	2014-11-01 06:58:10.609775071 +0200
@@ -41,8 +41,10 @@
 LIST(APPEND engineHeadlessLibraries no-sound)
 LIST(APPEND engineHeadlessLibraries engineSim)
 
-INCLUDE_DIRECTORIES(${ENGINE_SRC_ROOT_DIR}/lib/assimp/include)
+FIND_PACKAGE(ZLIB REQUIRED)
+LIST(APPEND engineHeadlessLibraries ${ZLIB_LIBRARY})
 
+INCLUDE_DIRECTORIES(${ENGINE_SRC_ROOT_DIR}/lib/assimp/include)
 
 ### Build the executable
 ADD_EXECUTABLE(engine-headless ${engineSources} ${ENGINE_ICON})
--- ./rts/builds/dedicated/CMakeLists.txt.old	2014-11-01 06:53:44.111822185 +0200
+++ ./rts/builds/dedicated/CMakeLists.txt	2014-11-01 06:55:12.579466363 +0200
@@ -20,6 +20,7 @@
 
 
 ### Assemble libraries
+FIND_PACKAGE(ZLIB REQUIRED)
 LIST(APPEND engineDedicatedLibraries ${Boost_REGEX_LIBRARY} ${Boost_PROGRAM_OPTIONS_LIBRARY} ${Boost_SYSTEM_LIBRARY} ${Boost_FILESYSTEM_LIBRARY})
 LIST(APPEND engineDedicatedLibraries lua archives 7zip ${SPRING_MINIZIP_LIBRARY} ${ZLIB_LIBRARY})
 LIST(APPEND engineDedicatedLibraries headlessStubs engineSystemNet)