```cmake
# NOTE: only add something here if it is really needed by all of kdelibs.
#     Otherwise please prefer adding to the relevant config-foo.h.cmake file,
#     and the CMakeLists.txt that generates it (or a separate ConfigureChecks.make file if you prefer)
#     to minimize recompilations and increase modularity.

include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckTypeSize)
include(CheckCXXSourceCompiles)

#check for libz using the cmake supplied FindZLIB.cmake
FIND_PACKAGE(ZLIB)

IF(ZLIB_FOUND)
	SET(HAVE_ZLIB 1)
ELSE(ZLIB_FOUND)
	SET(HAVE_ZLIB 0)
ENDIF(ZLIB_FOUND)

SET(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
FIND_PACKAGE(CppUnit)
IF (NOT CPPUNIT_FOUND AND BUILD_TESTS)
	MESSAGE(STATUS "CppUnit not found, disabling tests.")
	SET(BUILD_TESTS OFF)
ENDIF(NOT CPPUNIT_FOUND AND BUILD_TESTS)
```

Fix build when building complete kdesupport at once
user
```cmake
# NOTE: only add something here if it is really needed by all of kdelibs.
#     Otherwise please prefer adding to the relevant config-foo.h.cmake file,
#     and the CMakeLists.txt that generates it (or a separate ConfigureChecks.make file if you prefer)
#     to minimize recompilations and increase modularity.

include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckTypeSize)
include(CheckCXXSourceCompiles)

#check for libz using the cmake supplied FindZLIB.cmake
FIND_PACKAGE(ZLIB)

IF(ZLIB_FOUND)
	SET(HAVE_ZLIB 1)
ELSE(ZLIB_FOUND)
	SET(HAVE_ZLIB 0)
ENDIF(ZLIB_FOUND)

SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
FIND_PACKAGE(CppUnit)
IF (NOT CPPUNIT_FOUND AND BUILD_TESTS)
	MESSAGE(STATUS "CppUnit not found, disabling tests.")
	SET(BUILD_TESTS OFF)
ENDIF(NOT CPPUNIT_FOUND AND BUILD_TESTS)
```
assistant