CMakeLists.txt - github/CESNET/libyang - Gitiles

 cmake_minimum_required(VERSION 2.8.12)

 # force out-of-source build
 if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
     message(FATAL_ERROR "In-source build is not allowed. Please make a standalone build directory and run CMake from there. You may need to remove CMakeCache.txt.")
 endif()

 project(libyang C)

 include(GNUInstallDirs)
 include(CheckSymbolExists)

 set(LIBYANG_DESCRIPTION "libyang is YANG data modelling language parser and toolkit written (and providing API) in C.")

 # Correct RPATH usage on OS X
 set(CMAKE_MACOSX_RPATH TRUE)

 # set version of the project
 set(LIBYANG_MAJOR_VERSION 2)
 set(LIBYANG_MINOR_VERSION 0)
 set(LIBYANG_MICRO_VERSION 0)
 set(LIBYANG_VERSION ${LIBYANG_MAJOR_VERSION}.${LIBYANG_MINOR_VERSION}.${LIBYANG_MICRO_VERSION})
 # set version of the library
 set(LIBYANG_MAJOR_SOVERSION 2)
 set(LIBYANG_MINOR_SOVERSION 0)
 set(LIBYANG_MICRO_SOVERSION 0)
 set(LIBYANG_SOVERSION_FULL ${LIBYANG_MAJOR_SOVERSION}.${LIBYANG_MINOR_SOVERSION}.${LIBYANG_MICRO_SOVERSION})
 set(LIBYANG_SOVERSION ${LIBYANG_MAJOR_SOVERSION})

 # set default build type if not specified by user
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE debug)
 endif()

 set(CMAKE_C_FLAGS         "${CMAKE_C_FLAGS} -Wall -Wextra -Wno-missing-field-initializers -std=c99")
 set(CMAKE_C_FLAGS_RELEASE "-O2 -DNDEBUG")
 set(CMAKE_C_FLAGS_PACKAGE "-g -O2 -DNDEBUG")
 set(CMAKE_C_FLAGS_DEBUG   "-g -O0")

 # options
 if((CMAKE_BUILD_TYPE STREQUAL debug) OR (CMAKE_BUILD_TYPE STREQUAL Package))
     option(ENABLE_BUILD_TESTS "Build tests" ON)
     option(ENABLE_VALGRIND_TESTS "Build tests with valgrind" ON)

     if(CMAKE_COMPILER_IS_GNUCC)
         option(ENABLE_COVERAGE "Build code coverage report from tests" ON)
     else()
         option(ENABLE_COVERAGE "Build code coverage report from tests" OFF)
     endif()
 else()
     option(ENABLE_BUILD_TESTS "Build tests" OFF)
     option(ENABLE_VALGRIND_TESTS "Build tests with valgrind" OFF)
     option(ENABLE_COVERAGE "Build code coverage report from tests" OFF)
 endif()

 option(ENABLE_FUZZ_TARGETS "Build target programs suitable for fuzzing with AFL" OFF)
 #option(ENABLE_CALLGRIND_TESTS "Build performance tests to be run with callgrind" OFF)

 #option(ENABLE_CACHE "Enable data caching for schemas and hash tables for data (time-efficient at the cost of increased space-complexity)" ON)
 #option(ENABLE_LATEST_REVISIONS "Enable reusing of latest revisions of schemas" ON)
 #option(ENABLE_LYD_PRIV "Add a private pointer also to struct lyd_node (data node structure), just like in struct lys_node, for arbitrary user data" OFF)
 #set(PLUGINS_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libyang" CACHE STRING "Directory with libyang plugins (extensions and user types)")

 #if(ENABLE_CACHE)
 #    set(LY_ENABLED_CACHE 1)
 #endif()
 #if(ENABLE_LATEST_REVISIONS)
 #    set(LY_ENABLED_LATEST_REVISIONS 1)
 #endif()
 #if(ENABLE_LYD_PRIV)
 #    set(LY_ENABLED_LYD_PRIV 1)
 #endif()

 if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
     set(COMPILER_UNUSED_ATTR "UNUSED_ ## x __attribute__((__unused__))")
     set(COMPILER_PACKED_ATTR "__attribute__((__packed__))")
 elseif(CMAKE_C_COMPILER_ID STREQUAL "Clang")
     set(COMPILER_UNUSED_ATTR "UNUSED_ ## x __attribute__((__unused__))")
     set(COMPILER_PACKED_ATTR "__attribute__((__packed__))")
 else()
     set(COMPILER_UNUSED_ATTR "UNUSED_ ## x")
     set(COMPILER_PACKED_ATTR "")
 endif()

 include_directories(${PROJECT_BINARY_DIR}/src ${PROJECT_SOURCE_DIR}/src)
 configure_file(${PROJECT_SOURCE_DIR}/src/config.h.in ${PROJECT_BINARY_DIR}/src/config.h @ONLY)

 #set(EXTENSIONS_PLUGINS_DIR_MACRO "${PLUGINS_DIR}/extensions")
 #set(USER_TYPES_PLUGINS_DIR_MACRO "${PLUGINS_DIR}/user_types")

 # include custom Modules
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/CMakeModules/")

 # setup bindings
 #set(GEN_LANGUAGE_BINDINGS 0 CACHE BOOL "Enable language bindings generation.")
 #set(GEN_CPP_BINDINGS 1 CACHE BOOL "Enable C++ bindings.")
 # Python bindings depend on C++ bindings because of SWIG
 #set(GEN_PYTHON_BINDINGS 1 CACHE BOOL "Enable Python bindings.")
 #set(GEN_PYTHON_VERSION "3" CACHE STRING "Python version")
 #set(GEN_JAVASCRIPT_BINDINGS 0 CACHE BOOL "Enable JavaScript bindings.")

 #find_program(DEB_BUILDER NAMES debuild)
 #find_program(RPM_BUILDER NAMES rpmbuild)

 #if (NOT DEFINED ENV{TRAVIS_BRANCH})
 #    execute_process(COMMAND "git" "rev-parse" "--abbrev-ref" "HEAD"
 #                    OUTPUT_VARIABLE GIT_BRANCH
 #                    OUTPUT_STRIP_TRAILING_WHITESPACE
 #                    ERROR_QUIET
 #                )
 #    if (NOT GIT_BRANCH)
 #        set(ENV{TRAVIS_BRANCH} "master")
 #    else()
 #        if (GIT_BRANCH MATCHES "master|devel")
 #            set(ENV{TRAVIS_BRANCH} ${GIT_BRANCH})
 #        else()
 #            set(ENV{TRAVIS_BRANCH} "master")
 #        endif()
 #    endif()
 #    set(GIT_BRANCH $ENV{TRAVIS_BRANCH})
 #endif()
 #
 #if ($ENV{TRAVIS_BRANCH} STREQUAL "master")
 #    set(PACKAGE_NAME "libyang")
 #    set(PACKAGE_PART_NAME "")
 #    set(BRANCH "master")
 #    set(BUILD_TYPE "Package")
 #    set(CONFLICT_PACKAGE_NAME "libyang-experimental")
 #else ()
 #    set(PACKAGE_NAME "libyang-experimental")
 #    set(PACKAGE_PART_NAME "-experimental")
 #    set(BRANCH "devel")
 #    set(BUILD_TYPE "debug")
 #    set(CONFLICT_PACKAGE_NAME "libyang")
 #endif()
 # change version in config files
 #configure_file(${PROJECT_SOURCE_DIR}/packages/libyang.spec.in ${PROJECT_BINARY_DIR}/build-packages/libyang.spec)
 #configure_file(${PROJECT_SOURCE_DIR}/packages/libyang.dsc.in ${PROJECT_BINARY_DIR}/build-packages/libyang.dsc)
 #configure_file(${PROJECT_SOURCE_DIR}/packages/debian.control.in ${PROJECT_BINARY_DIR}/build-packages/debian.control @ONLY)
 #configure_file(${PROJECT_SOURCE_DIR}/packages/debian.rules.in ${PROJECT_BINARY_DIR}/build-packages/debian.rules)

 #if (NOT DEB_BUILDER)
 #    message(WARNING "Missing tools (devscripts, debhelper package) for building deb package.\nYou won't be able to generate deb package from source code.\nCompiling libyang should still works fine.")
 #else ()
 #    # target for local build deb package
 #    add_custom_target(build-deb
 #                      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
 #                      COMMAND build-packages/local-deb.sh
 #    )
 #    configure_file(${PROJECT_SOURCE_DIR}/packages/local-deb.sh.in ${PROJECT_BINARY_DIR}/build-packages/local-deb.sh @ONLY)
 #endif()

 #if (NOT RPM_BUILDER)
 #    message(WARNING "Missing tools (rpm package) for building rpm package. \nYou won't be able to generate rpm package from source code.\nCompiling libyang should still works fine.")
 #else ()
 #    # target for local build rpm package
 #    string(REPLACE ${PROJECT_SOURCE_DIR} "." EXCLUDE_BUILD_DIR ${PROJECT_BINARY_DIR})
 #    add_custom_target(build-rpm
 #                      WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
 #                      COMMAND build-packages/local-rpm.sh
 #    )
 #    configure_file(${PROJECT_SOURCE_DIR}/packages/local-rpm.sh.in ${PROJECT_BINARY_DIR}/build-packages/local-rpm.sh @ONLY)
 #endif()

 # by default build shared library
 # static build requires static libpcre2 library
 option(ENABLE_STATIC "Build static (.a) library" OFF)

 # check the supported platform
 if(NOT UNIX)
     message(FATAL_ERROR "Only *nix like systems are supported.")
 endif()

 set(libsrc
     src/common.c
     src/log.c
     src/hash_table.c
     src/set.c
     src/context.c
     src/tree_schema.c
     src/tree_schema_free.c
     src/tree_schema_compile.c
     src/tree_schema_helpers.c
     src/parser_yang.c
     src/printer.c
     src/printer_yang.c
     src/xml.c
     src/xpath.c)

 set(lintsrc
     tools/lint/main.c
     tools/lint/main_ni.c
     tools/lint/commands.c
     tools/lint/completion.c
     tools/lint/configuration.c
     tools/lint/linenoise/linenoise.c)

 #set(resrc
 #    tools/re/main.c)

 set(headers
     src/libyang.h
     src/context.h
     src/tree_schema.h
     src/printer_schema.h
     src/extensions.h
     src/dict.h
     src/log.h
     src/set.h)

 list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
 check_symbol_exists(vdprintf stdio.h HAVE_VDPRINTF)

 # create static libyang library
 if(ENABLE_STATIC)
     add_definitions(-DSTATIC)
     set(CMAKE_EXE_LINKER_FLAGS -static)
     set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
     set(CMAKE_EXE_LINK_DYNAMIC_C_FLAGS)       # remove -Wl,-Bdynamic
     set(CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS)
     add_library(yang STATIC ${libsrc})
 else()
     set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
     add_library(yangobj OBJECT ${libsrc})
     add_library(yang SHARED $<TARGET_OBJECTS:yangobj>)

     #link dl
     target_link_libraries(yang ${CMAKE_DL_LIBS})
 endif(ENABLE_STATIC)

 set_target_properties(yang PROPERTIES VERSION ${LIBYANG_SOVERSION_FULL} SOVERSION ${LIBYANG_SOVERSION})
 set_target_properties(yangobj PROPERTIES COMPILE_FLAGS "-fvisibility=hidden")

 # link math
 target_link_libraries(yang m)

 # find pthreads
 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
 find_package(Threads REQUIRED)
 if(ENABLE_STATIC)
     target_link_libraries(yang -Wl,--whole-archive ${CMAKE_THREAD_LIBS_INIT} -Wl,--no-whole-archive)
 else()
     target_link_libraries(yang ${CMAKE_THREAD_LIBS_INIT})
 endif(ENABLE_STATIC)

 # find PCRE2 library
 unset(PCRE2_LIBRARY CACHE)
 find_package(PCRE2 REQUIRED)
 include_directories(${PCRE2_INCLUDE_DIRS})
 target_link_libraries(yang ${PCRE2_LIBRARIES})

 install(TARGETS yang DESTINATION ${CMAKE_INSTALL_LIBDIR})
 install(FILES ${headers} ${PROJECT_BINARY_DIR}/src/config.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libyang)

 find_package(PkgConfig)
 if(PKG_CONFIG_FOUND)
     # generate and install pkg-config file
     configure_file("libyang.pc.in" "libyang.pc" @ONLY)
     install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libyang.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
     # check that pkg-config includes the used path
     execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} --variable pc_path pkg-config RESULT_VARIABLE RETURN OUTPUT_VARIABLE PC_PATH ERROR_QUIET)
     if(RETURN EQUAL 0)
 	string(STRIP "${PC_PATH}" PC_PATH)
 	set(PC_PATH "${PC_PATH}:$ENV{PKG_CONFIG_PATH}")
         string(REGEX MATCH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/pkgconfig" SUBSTR "${PC_PATH}")
         string(LENGTH "${SUBSTR}" SUBSTR_LEN)
         if(SUBSTR_LEN EQUAL 0)
             message(WARNING "pkg-config will not detect the new package after installation, adjust PKG_CONFIG_PATH using \"export PKG_CONFIG_PATH=\${PKG_CONFIG_PATH}:${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/pkgconfig\".")
         endif()
     endif()
 endif()

 # generate doxygen documentation for libyang API
 find_package(Doxygen)
 if(DOXYGEN_FOUND)
     find_program(DOT_PATH dot PATH_SUFFIXES graphviz2.38/bin graphviz/bin)
     if(DOT_PATH)
         set(HAVE_DOT "YES")
     else()
         set(HAVE_DOT "NO")
         message(AUTHOR_WARNING "Doxygen: to generate UML diagrams please install graphviz")
     endif()
     add_custom_target(doc
             COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_BINARY_DIR}/Doxyfile
             WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
     configure_file(Doxyfile.in Doxyfile)
 endif()

 # clean cmake cache
 add_custom_target(cclean
         COMMAND make clean
         COMMAND find . -iname '*cmake*' -not -name CMakeLists.txt -not -path './CMakeModules*' -exec rm -rf {} +
         COMMAND rm -rf Makefile Doxyfile
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})

 # YANG extensions plugins
 #set(EXTENSIONS_LIST "nacm" "metadata" "yangdata")
 # if the tests are enabled, build libyang_ext_test
 if(ENABLE_BUILD_TESTS)
     find_package(CMocka 1.0.0)
 #    if(CMOCKA_FOUND AND CMAKE_BUILD_TYPE MATCHES debug)
 #        list(APPEND EXTENSIONS_LIST "libyang_ext_test")
 #    endif(CMOCKA_FOUND AND CMAKE_BUILD_TYPE MATCHES debug)
 endif(ENABLE_BUILD_TESTS)

 #if(ENABLE_STATIC)
 #    set(EXTENSIONS_LIST_SIZE " 0 ")
 #    set(ITEM 0)
 #    foreach(EXTENSION ${EXTENSIONS_LIST})
 #        add_library(${EXTENSION} STATIC "src/extensions/${EXTENSION}.c")
 #        target_link_libraries(yang ${EXTENSION})
 #        set(EXTENSIONS_LIST_SIZE "${EXTENSIONS_LIST_SIZE} + lyext_size(${EXTENSION})")
 #        set(EXTERN_EXTENSIONS_LIST "${EXTERN_EXTENSIONS_LIST}extern struct lyext_plugin_list ${EXTENSION}[];\n")
 #        set(MEMCPY_EXTENSIONS_LIST "${MEMCPY_EXTENSIONS_LIST}    lyext_add(plugin, count, ${EXTENSION});\n")
 #        set(STATIC_LOADED_PLUGINS "${STATIC_LOADED_PLUGINS} \"${EXTENSION}\",")
 #        MATH(EXPR ITEM "${ITEM}+1")
 #    endforeach()
 #else()
 #    add_subdirectory(src/extensions)
 #endif(ENABLE_STATIC)

 # YANG user types plugins ("user_ipv4" is just an example, not installed by default)
 #set(USER_TYPE_LIST "user_date_and_time")
 #if(ENABLE_STATIC)
 #    set(USER_TYPE_LIST_SIZE " 0 ")
 #    foreach(USER_TYPE ${USER_TYPE_LIST})
 #        add_library(${USER_TYPE} STATIC "src/user_types/${USER_TYPE}.c")
 #        target_link_libraries(yang ${USER_TYPE})
 #        set(USER_TYPE_LIST_SIZE "${USER_TYPE_LIST_SIZE} + lytype_size(${USER_TYPE})")
 #        set(EXTERN_USER_TYPE_LIST "${EXTERN_USER_TYPE_LIST}extern struct lytype_plugin_list ${USER_TYPE}[];\n")
 #        set(MEMCPY_USER_TYPE_LIST "${MEMCPY_USER_TYPE_LIST}    lytype_add(plugin, count, ${USER_TYPE});\n")
 #        set(STATIC_LOADED_PLUGINS "${STATIC_LOADED_PLUGINS} \"${USER_TYPE}\",")
 #        MATH(EXPR ITEM "${ITEM}+1")
 #    endforeach()
 #    set(STATIC_LOADED_PLUGINS_COUNT "${ITEM}")
 #else()
 #    add_subdirectory(src/user_types)
 #endif(ENABLE_STATIC)
 #
 #configure_file(${PROJECT_SOURCE_DIR}/src/plugin_config.h.in ${PROJECT_BINARY_DIR}/src/plugin_config.h)

 # config file for tools
 configure_file(${PROJECT_SOURCE_DIR}/tools/config.h.in ${PROJECT_BINARY_DIR}/tools/config.h @ONLY)

 # yanglint
 add_executable(yanglint ${lintsrc})
 target_link_libraries(yanglint yang)
 install(TARGETS yanglint DESTINATION ${CMAKE_INSTALL_BINDIR})
 install(FILES ${PROJECT_SOURCE_DIR}/tools/lint/yanglint.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 target_include_directories(yanglint BEFORE PRIVATE ${PROJECT_BINARY_DIR}/tools)

 #yangre
 #add_executable(yangre ${resrc})
 #target_link_libraries(yangre yang)
 #install(TARGETS yangre DESTINATION ${CMAKE_INSTALL_BINDIR})
 #target_include_directories(yangre BEFORE PRIVATE ${PROJECT_BINARY_DIR}/tools)

 if(ENABLE_VALGRIND_TESTS)
     set(ENABLE_BUILD_TESTS ON)
 endif()

 if(ENABLE_BUILD_TESTS)
     if(CMOCKA_FOUND)
         enable_testing()
         add_subdirectory(tests)
     else(CMOCKA_FOUND)
         message(STATUS "Disabling tests because of missing CMocka")
         set(ENABLE_BUILD_TESTS NO)
     endif(CMOCKA_FOUND)
 endif(ENABLE_BUILD_TESTS)

 if(ENABLE_BUILD_FUZZ_TARGETS)
 	add_subdirectory(tests/fuzz)
 endif(ENABLE_BUILD_FUZZ_TARGETS)

 #if(GEN_LANGUAGE_BINDINGS AND GEN_CPP_BINDINGS)
 #    add_subdirectory(swig)
 #endif()
	cmake_minimum_required(VERSION 2.8.12)

	# force out-of-source build
	if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
	message(FATAL_ERROR "In-source build is not allowed. Please make a standalone build directory and run CMake from there. You may need to remove CMakeCache.txt.")
	endif()

	project(libyang C)

	include(GNUInstallDirs)
	include(CheckSymbolExists)

	set(LIBYANG_DESCRIPTION "libyang is YANG data modelling language parser and toolkit written (and providing API) in C.")

	# Correct RPATH usage on OS X
	set(CMAKE_MACOSX_RPATH TRUE)

	# set version of the project
	set(LIBYANG_MAJOR_VERSION 2)
	set(LIBYANG_MINOR_VERSION 0)
	set(LIBYANG_MICRO_VERSION 0)
	set(LIBYANG_VERSION ${LIBYANG_MAJOR_VERSION}.${LIBYANG_MINOR_VERSION}.${LIBYANG_MICRO_VERSION})
	# set version of the library
	set(LIBYANG_MAJOR_SOVERSION 2)
	set(LIBYANG_MINOR_SOVERSION 0)
	set(LIBYANG_MICRO_SOVERSION 0)
	set(LIBYANG_SOVERSION_FULL ${LIBYANG_MAJOR_SOVERSION}.${LIBYANG_MINOR_SOVERSION}.${LIBYANG_MICRO_SOVERSION})
	set(LIBYANG_SOVERSION ${LIBYANG_MAJOR_SOVERSION})

	# set default build type if not specified by user
	if(NOT CMAKE_BUILD_TYPE)
	set(CMAKE_BUILD_TYPE debug)
	endif()

	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wno-missing-field-initializers -std=c99")
	set(CMAKE_C_FLAGS_RELEASE "-O2 -DNDEBUG")
	set(CMAKE_C_FLAGS_PACKAGE "-g -O2 -DNDEBUG")
	set(CMAKE_C_FLAGS_DEBUG "-g -O0")

	# options
	if((CMAKE_BUILD_TYPE STREQUAL debug) OR (CMAKE_BUILD_TYPE STREQUAL Package))
	option(ENABLE_BUILD_TESTS "Build tests" ON)
	option(ENABLE_VALGRIND_TESTS "Build tests with valgrind" ON)

	if(CMAKE_COMPILER_IS_GNUCC)
	option(ENABLE_COVERAGE "Build code coverage report from tests" ON)
	else()
	option(ENABLE_COVERAGE "Build code coverage report from tests" OFF)
	endif()
	else()
	option(ENABLE_BUILD_TESTS "Build tests" OFF)
	option(ENABLE_VALGRIND_TESTS "Build tests with valgrind" OFF)
	option(ENABLE_COVERAGE "Build code coverage report from tests" OFF)
	endif()

	option(ENABLE_FUZZ_TARGETS "Build target programs suitable for fuzzing with AFL" OFF)
	#option(ENABLE_CALLGRIND_TESTS "Build performance tests to be run with callgrind" OFF)

	#option(ENABLE_CACHE "Enable data caching for schemas and hash tables for data (time-efficient at the cost of increased space-complexity)" ON)
	#option(ENABLE_LATEST_REVISIONS "Enable reusing of latest revisions of schemas" ON)
	#option(ENABLE_LYD_PRIV "Add a private pointer also to struct lyd_node (data node structure), just like in struct lys_node, for arbitrary user data" OFF)
	#set(PLUGINS_DIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/libyang" CACHE STRING "Directory with libyang plugins (extensions and user types)")

	#if(ENABLE_CACHE)
	# set(LY_ENABLED_CACHE 1)
	#endif()
	#if(ENABLE_LATEST_REVISIONS)
	# set(LY_ENABLED_LATEST_REVISIONS 1)
	#endif()
	#if(ENABLE_LYD_PRIV)
	# set(LY_ENABLED_LYD_PRIV 1)
	#endif()

	if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
	set(COMPILER_UNUSED_ATTR "UNUSED_ ## x __attribute__((__unused__))")
	set(COMPILER_PACKED_ATTR "__attribute__((__packed__))")
	elseif(CMAKE_C_COMPILER_ID STREQUAL "Clang")
	set(COMPILER_UNUSED_ATTR "UNUSED_ ## x __attribute__((__unused__))")
	set(COMPILER_PACKED_ATTR "__attribute__((__packed__))")
	else()
	set(COMPILER_UNUSED_ATTR "UNUSED_ ## x")
	set(COMPILER_PACKED_ATTR "")
	endif()

	include_directories(${PROJECT_BINARY_DIR}/src ${PROJECT_SOURCE_DIR}/src)
	configure_file(${PROJECT_SOURCE_DIR}/src/config.h.in ${PROJECT_BINARY_DIR}/src/config.h @ONLY)

	#set(EXTENSIONS_PLUGINS_DIR_MACRO "${PLUGINS_DIR}/extensions")
	#set(USER_TYPES_PLUGINS_DIR_MACRO "${PLUGINS_DIR}/user_types")

	# include custom Modules
	set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/CMakeModules/")

	# setup bindings
	#set(GEN_LANGUAGE_BINDINGS 0 CACHE BOOL "Enable language bindings generation.")
	#set(GEN_CPP_BINDINGS 1 CACHE BOOL "Enable C++ bindings.")
	# Python bindings depend on C++ bindings because of SWIG
	#set(GEN_PYTHON_BINDINGS 1 CACHE BOOL "Enable Python bindings.")
	#set(GEN_PYTHON_VERSION "3" CACHE STRING "Python version")
	#set(GEN_JAVASCRIPT_BINDINGS 0 CACHE BOOL "Enable JavaScript bindings.")

	#find_program(DEB_BUILDER NAMES debuild)
	#find_program(RPM_BUILDER NAMES rpmbuild)

	#if (NOT DEFINED ENV{TRAVIS_BRANCH})
	# execute_process(COMMAND "git" "rev-parse" "--abbrev-ref" "HEAD"
	# OUTPUT_VARIABLE GIT_BRANCH
	# OUTPUT_STRIP_TRAILING_WHITESPACE
	# ERROR_QUIET
	# )
	# if (NOT GIT_BRANCH)
	# set(ENV{TRAVIS_BRANCH} "master")
	# else()
	# if (GIT_BRANCH MATCHES "master\|devel")
	# set(ENV{TRAVIS_BRANCH} ${GIT_BRANCH})
	# else()
	# set(ENV{TRAVIS_BRANCH} "master")
	# endif()
	# endif()
	# set(GIT_BRANCH $ENV{TRAVIS_BRANCH})
	#endif()
	#
	#if ($ENV{TRAVIS_BRANCH} STREQUAL "master")
	# set(PACKAGE_NAME "libyang")
	# set(PACKAGE_PART_NAME "")
	# set(BRANCH "master")
	# set(BUILD_TYPE "Package")
	# set(CONFLICT_PACKAGE_NAME "libyang-experimental")
	#else ()
	# set(PACKAGE_NAME "libyang-experimental")
	# set(PACKAGE_PART_NAME "-experimental")
	# set(BRANCH "devel")
	# set(BUILD_TYPE "debug")
	# set(CONFLICT_PACKAGE_NAME "libyang")
	#endif()
	# change version in config files
	#configure_file(${PROJECT_SOURCE_DIR}/packages/libyang.spec.in ${PROJECT_BINARY_DIR}/build-packages/libyang.spec)
	#configure_file(${PROJECT_SOURCE_DIR}/packages/libyang.dsc.in ${PROJECT_BINARY_DIR}/build-packages/libyang.dsc)
	#configure_file(${PROJECT_SOURCE_DIR}/packages/debian.control.in ${PROJECT_BINARY_DIR}/build-packages/debian.control @ONLY)
	#configure_file(${PROJECT_SOURCE_DIR}/packages/debian.rules.in ${PROJECT_BINARY_DIR}/build-packages/debian.rules)

	#if (NOT DEB_BUILDER)
	# message(WARNING "Missing tools (devscripts, debhelper package) for building deb package.\nYou won't be able to generate deb package from source code.\nCompiling libyang should still works fine.")
	#else ()
	# # target for local build deb package
	# add_custom_target(build-deb
	# WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
	# COMMAND build-packages/local-deb.sh
	# )
	# configure_file(${PROJECT_SOURCE_DIR}/packages/local-deb.sh.in ${PROJECT_BINARY_DIR}/build-packages/local-deb.sh @ONLY)
	#endif()

	#if (NOT RPM_BUILDER)
	# message(WARNING "Missing tools (rpm package) for building rpm package. \nYou won't be able to generate rpm package from source code.\nCompiling libyang should still works fine.")
	#else ()
	# # target for local build rpm package
	# string(REPLACE ${PROJECT_SOURCE_DIR} "." EXCLUDE_BUILD_DIR ${PROJECT_BINARY_DIR})
	# add_custom_target(build-rpm
	# WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
	# COMMAND build-packages/local-rpm.sh
	# )
	# configure_file(${PROJECT_SOURCE_DIR}/packages/local-rpm.sh.in ${PROJECT_BINARY_DIR}/build-packages/local-rpm.sh @ONLY)
	#endif()

	# by default build shared library
	# static build requires static libpcre2 library
	option(ENABLE_STATIC "Build static (.a) library" OFF)

	# check the supported platform
	if(NOT UNIX)
	message(FATAL_ERROR "Only *nix like systems are supported.")
	endif()

	set(libsrc
	src/common.c
	src/log.c
	src/hash_table.c
	src/set.c
	src/context.c
	src/tree_schema.c
	src/tree_schema_free.c
	src/tree_schema_compile.c
	src/tree_schema_helpers.c
	src/parser_yang.c
	src/printer.c
	src/printer_yang.c
	src/xml.c
	src/xpath.c)

	set(lintsrc
	tools/lint/main.c
	tools/lint/main_ni.c
	tools/lint/commands.c
	tools/lint/completion.c
	tools/lint/configuration.c
	tools/lint/linenoise/linenoise.c)

	#set(resrc
	# tools/re/main.c)

	set(headers
	src/libyang.h
	src/context.h
	src/tree_schema.h
	src/printer_schema.h
	src/extensions.h
	src/dict.h
	src/log.h
	src/set.h)

	list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
	check_symbol_exists(vdprintf stdio.h HAVE_VDPRINTF)

	# create static libyang library
	if(ENABLE_STATIC)
	add_definitions(-DSTATIC)
	set(CMAKE_EXE_LINKER_FLAGS -static)
	set(CMAKE_FIND_LIBRARY_SUFFIXES .a)
	set(CMAKE_EXE_LINK_DYNAMIC_C_FLAGS) # remove -Wl,-Bdynamic
	set(CMAKE_EXE_LINK_DYNAMIC_CXX_FLAGS)
	add_library(yang STATIC ${libsrc})
	else()
	set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
	add_library(yangobj OBJECT ${libsrc})
	add_library(yang SHARED $<TARGET_OBJECTS:yangobj>)

	#link dl
	target_link_libraries(yang ${CMAKE_DL_LIBS})
	endif(ENABLE_STATIC)

	set_target_properties(yang PROPERTIES VERSION ${LIBYANG_SOVERSION_FULL} SOVERSION ${LIBYANG_SOVERSION})
	set_target_properties(yangobj PROPERTIES COMPILE_FLAGS "-fvisibility=hidden")

	# link math
	target_link_libraries(yang m)

	# find pthreads
	set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
	find_package(Threads REQUIRED)
	if(ENABLE_STATIC)
	target_link_libraries(yang -Wl,--whole-archive ${CMAKE_THREAD_LIBS_INIT} -Wl,--no-whole-archive)
	else()
	target_link_libraries(yang ${CMAKE_THREAD_LIBS_INIT})
	endif(ENABLE_STATIC)

	# find PCRE2 library
	unset(PCRE2_LIBRARY CACHE)
	find_package(PCRE2 REQUIRED)
	include_directories(${PCRE2_INCLUDE_DIRS})
	target_link_libraries(yang ${PCRE2_LIBRARIES})

	install(TARGETS yang DESTINATION ${CMAKE_INSTALL_LIBDIR})
	install(FILES ${headers} ${PROJECT_BINARY_DIR}/src/config.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/libyang)

	find_package(PkgConfig)
	if(PKG_CONFIG_FOUND)
	# generate and install pkg-config file
	configure_file("libyang.pc.in" "libyang.pc" @ONLY)
	install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libyang.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
	# check that pkg-config includes the used path
	execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} --variable pc_path pkg-config RESULT_VARIABLE RETURN OUTPUT_VARIABLE PC_PATH ERROR_QUIET)
	if(RETURN EQUAL 0)
	string(STRIP "${PC_PATH}" PC_PATH)
	set(PC_PATH "${PC_PATH}:$ENV{PKG_CONFIG_PATH}")
	string(REGEX MATCH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/pkgconfig" SUBSTR "${PC_PATH}")
	string(LENGTH "${SUBSTR}" SUBSTR_LEN)
	if(SUBSTR_LEN EQUAL 0)
	message(WARNING "pkg-config will not detect the new package after installation, adjust PKG_CONFIG_PATH using \"export PKG_CONFIG_PATH=\${PKG_CONFIG_PATH}:${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/pkgconfig\".")
	endif()
	endif()
	endif()

	# generate doxygen documentation for libyang API
	find_package(Doxygen)
	if(DOXYGEN_FOUND)
	find_program(DOT_PATH dot PATH_SUFFIXES graphviz2.38/bin graphviz/bin)
	if(DOT_PATH)
	set(HAVE_DOT "YES")
	else()
	set(HAVE_DOT "NO")
	message(AUTHOR_WARNING "Doxygen: to generate UML diagrams please install graphviz")
	endif()
	add_custom_target(doc
	COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_BINARY_DIR}/Doxyfile
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
	configure_file(Doxyfile.in Doxyfile)
	endif()

	# clean cmake cache
	add_custom_target(cclean
	COMMAND make clean
	COMMAND find . -iname 'cmake' -not -name CMakeLists.txt -not -path './CMakeModules*' -exec rm -rf {} +
	COMMAND rm -rf Makefile Doxyfile
	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})

	# YANG extensions plugins
	#set(EXTENSIONS_LIST "nacm" "metadata" "yangdata")
	# if the tests are enabled, build libyang_ext_test
	if(ENABLE_BUILD_TESTS)
	find_package(CMocka 1.0.0)
	# if(CMOCKA_FOUND AND CMAKE_BUILD_TYPE MATCHES debug)
	# list(APPEND EXTENSIONS_LIST "libyang_ext_test")
	# endif(CMOCKA_FOUND AND CMAKE_BUILD_TYPE MATCHES debug)
	endif(ENABLE_BUILD_TESTS)

	#if(ENABLE_STATIC)
	# set(EXTENSIONS_LIST_SIZE " 0 ")
	# set(ITEM 0)
	# foreach(EXTENSION ${EXTENSIONS_LIST})
	# add_library(${EXTENSION} STATIC "src/extensions/${EXTENSION}.c")
	# target_link_libraries(yang ${EXTENSION})
	# set(EXTENSIONS_LIST_SIZE "${EXTENSIONS_LIST_SIZE} + lyext_size(${EXTENSION})")
	# set(EXTERN_EXTENSIONS_LIST "${EXTERN_EXTENSIONS_LIST}extern struct lyext_plugin_list ${EXTENSION}[];\n")
	# set(MEMCPY_EXTENSIONS_LIST "${MEMCPY_EXTENSIONS_LIST} lyext_add(plugin, count, ${EXTENSION});\n")
	# set(STATIC_LOADED_PLUGINS "${STATIC_LOADED_PLUGINS} \"${EXTENSION}\",")
	# MATH(EXPR ITEM "${ITEM}+1")
	# endforeach()
	#else()
	# add_subdirectory(src/extensions)
	#endif(ENABLE_STATIC)

	# YANG user types plugins ("user_ipv4" is just an example, not installed by default)
	#set(USER_TYPE_LIST "user_date_and_time")
	#if(ENABLE_STATIC)
	# set(USER_TYPE_LIST_SIZE " 0 ")
	# foreach(USER_TYPE ${USER_TYPE_LIST})
	# add_library(${USER_TYPE} STATIC "src/user_types/${USER_TYPE}.c")
	# target_link_libraries(yang ${USER_TYPE})
	# set(USER_TYPE_LIST_SIZE "${USER_TYPE_LIST_SIZE} + lytype_size(${USER_TYPE})")
	# set(EXTERN_USER_TYPE_LIST "${EXTERN_USER_TYPE_LIST}extern struct lytype_plugin_list ${USER_TYPE}[];\n")
	# set(MEMCPY_USER_TYPE_LIST "${MEMCPY_USER_TYPE_LIST} lytype_add(plugin, count, ${USER_TYPE});\n")
	# set(STATIC_LOADED_PLUGINS "${STATIC_LOADED_PLUGINS} \"${USER_TYPE}\",")
	# MATH(EXPR ITEM "${ITEM}+1")
	# endforeach()
	# set(STATIC_LOADED_PLUGINS_COUNT "${ITEM}")
	#else()
	# add_subdirectory(src/user_types)
	#endif(ENABLE_STATIC)
	#
	#configure_file(${PROJECT_SOURCE_DIR}/src/plugin_config.h.in ${PROJECT_BINARY_DIR}/src/plugin_config.h)

	# config file for tools
	configure_file(${PROJECT_SOURCE_DIR}/tools/config.h.in ${PROJECT_BINARY_DIR}/tools/config.h @ONLY)

	# yanglint
	add_executable(yanglint ${lintsrc})
	target_link_libraries(yanglint yang)
	install(TARGETS yanglint DESTINATION ${CMAKE_INSTALL_BINDIR})
	install(FILES ${PROJECT_SOURCE_DIR}/tools/lint/yanglint.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
	target_include_directories(yanglint BEFORE PRIVATE ${PROJECT_BINARY_DIR}/tools)

	#yangre
	#add_executable(yangre ${resrc})
	#target_link_libraries(yangre yang)
	#install(TARGETS yangre DESTINATION ${CMAKE_INSTALL_BINDIR})
	#target_include_directories(yangre BEFORE PRIVATE ${PROJECT_BINARY_DIR}/tools)

	if(ENABLE_VALGRIND_TESTS)
	set(ENABLE_BUILD_TESTS ON)
	endif()

	if(ENABLE_BUILD_TESTS)
	if(CMOCKA_FOUND)
	enable_testing()
	add_subdirectory(tests)
	else(CMOCKA_FOUND)
	message(STATUS "Disabling tests because of missing CMocka")
	set(ENABLE_BUILD_TESTS NO)
	endif(CMOCKA_FOUND)
	endif(ENABLE_BUILD_TESTS)

	if(ENABLE_BUILD_FUZZ_TARGETS)
	add_subdirectory(tests/fuzz)
	endif(ENABLE_BUILD_FUZZ_TARGETS)

	#if(GEN_LANGUAGE_BINDINGS AND GEN_CPP_BINDINGS)
	# add_subdirectory(swig)
	#endif()