diff --git a/CMakeLists.txt b/CMakeLists.txt
index 990bcff..cfc55a5 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,11 +25,14 @@ add_subdirectory(${ENET_DIR} EXCLUDE_FROM_ALL)
 #zlib stuff
 set(ZLIB_TARGET zlibstatic)
 set(ZLIB_DIR "${CMAKE_CURRENT_LIST_DIR}/zlib")
-set(ZLIB_INC_DIR ${ZLIB_DIR}/include)
+set(ZLIB_INC_DIR ${ZLIB_DIR})
+set(ZLIB_CONF_DIR ${CMAKE_CURRENT_BINARY_DIR}/zlib)
 add_subdirectory(${ZLIB_DIR} EXCLUDE_FROM_ALL)
 
 #irrlicht stuff
-set(IRRLICHT_INC_DIR /usr/include/irrlicht)
+if (NOT IRRLICHT_INC_DIR)
+	set(IRRLICHT_INC_DIR /usr/include/irrlicht)
+endif()
 
 
 project(irrnet)
@@ -47,8 +50,13 @@ add_library(${IRRNET_TARGET} STATIC
 if (OP_COMPILE_WITH_IRRLICHT)
     message(STATUS "compile with native irrlicht")
     add_definitions(-DCOMPILE_WITH_IRRLICHT)
+	message(STATUS "irrlicht dir: " ${IRRLICHT_INC_DIR})
     target_include_directories(${IRRNET_TARGET} PUBLIC ${IRRLICHT_INC_DIR})
 endif()
 
-target_include_directories(${IRRNET_TARGET} PUBLIC ${IRRNET_INC_DIR} ${ENET_INC_DIR} ${ZLIB_INC_DIR})
+target_link_libraries(${IRRNET_TARGET} ${ZLIB_TARGET} ${ENET_TARGET})
+
+target_include_directories(${IRRNET_TARGET} PUBLIC ${IRRNET_INC_DIR} ${ENET_INC_DIR} ${ZLIB_INC_DIR})
+message(STATUS "conf dir" ${ZLIB_CONF_DIR})
+target_include_directories(${IRRNET_TARGET} PRIVATE ${ZLIB_CONF_DIR})