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()
    set(HAVE_ZLIB 0)
endif()

# Determine where shared_ptr<T> is defined regardless of C++11 support.

check_cxx_source_compiles("
    #include <memory>
    int main() { std::tr1::shared_ptr<int> x; return 0; }
" HAVE_STD_SHARED_PTR)

check_cxx_source_compiles("
    #include <tr1/memory>
    int main() { std::tr1::shared_ptr<int> x; return 0; }
" HAVE_TR1_SHARED_PTR)

check_cxx_source_compiles("
    #include <boost/shared_ptr.hpp>
    int main() { boost::shared_ptr<int> x; return 0; }
" HAVE_BOOST_SHARED_PTR)

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()