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# Notes:
#
# Author: Paul Harris, June 2012
# Additions: Joakim Soderberg, Febuary 2013
#
# Supports: building static/shared, release/debug/etc, can also build html docs
# and some of the tests.
# Note that its designed for out-of-tree builds, so it will not pollute your
# source tree.
#
# TODO 1: Finish implementing tests. api tests are working, but the valgrind
# variants are not flagging problems.
#
# TODO 2: There is a check_exports script that would try and incorporate.
#
# TODO 3: Consolidate version numbers, currently the version number is written
# into: * cmake (here) * autotools (the configure) * source code header files.
# Should not be written directly into header files, autotools/cmake can do
# that job.
#
# Brief intro on how to use cmake:
# > mkdir build (somewhere - we do out-of-tree builds)
# > use cmake, ccmake, or cmake-gui to configure the project. for linux, you
# can only choose one variant: release,debug,etc... and static or shared.
# >> example:
# >> cd build
# >> ccmake -i ../path_to_jansson_dir
# >> inside, configure your options. press C until there are no lines
# with * next to them.
# >> note, I like to configure the 'install' path to ../install, so I get
# self-contained clean installs I can point other projects to.
# >> press G to 'generate' the project files.
# >> make (to build the project)
# >> make install
# >> make test (to run the tests, if you enabled them)
#
# Brief description on how it works:
# There is a small heirachy of CMakeLists.txt files which define how the
# project is built.
# Header file detection etc is done, and the results are written into config.h
# and jansson_config.h, which are generated from the corresponding
# config.h.cmake and jansson_config.h.cmake template files.
# The generated header files end up in the build directory - not in
# the source directory.
# The rest is down to the usual make process.
cmake_minimum_required (VERSION 3.1)
project(jansson C)
# Options
option(JANSSON_BUILD_SHARED_LIBS "Build shared libraries." OFF)
option(USE_URANDOM "Use /dev/urandom to seed the hash function." ON)
option(USE_WINDOWS_CRYPTOAPI "Use CryptGenRandom to seed the hash function." ON)
if (MSVC)
# This option must match the settings used in your program, in particular if you
# are linking statically
option(JANSSON_STATIC_CRT "Link the static CRT libraries" OFF )
endif ()
option(JANSSON_EXAMPLES "Compile example applications" ON)
if (UNIX)
option(JANSSON_COVERAGE "(GCC Only! Requires gcov/lcov to be installed). Include target for doing coverage analysis for the test suite. Note that -DCMAKE_BUILD_TYPE=Debug must be set" OFF)
option(JANSSON_COVERALLS "Generate coverage info for Coveralls" OFF)
option(JANSSON_COVERALLS_UPLOAD "Upload coverage info to Coveralls (Only works via Travis)" ON)
endif ()
# Set some nicer output dirs.
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/lib)
set(JANSSON_TEMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/tmp)
# Give the debug version a different postfix for windows,
# so both the debug and release version can be built in the
# same build-tree on Windows (MSVC).
if (WIN32 AND NOT CMAKE_DEBUG_POSTFIX)
set(CMAKE_DEBUG_POSTFIX "_d")
endif()
# This is how I thought it should go
# set (JANSSON_VERSION "2.3.1")
# set (JANSSON_SOVERSION 2)
set(JANSSON_DISPLAY_VERSION "2.11")
# This is what is required to match the same numbers as automake's
set(JANSSON_VERSION "4.11.0")
set(JANSSON_SOVERSION 4)
# for CheckFunctionKeywords
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
include (CheckCSourceCompiles)
include (CheckFunctionExists)
include (CheckFunctionKeywords)
include (CheckIncludeFiles)
include (CheckTypeSize)
if (MSVC)
# Turn off Microsofts "security" warnings.
add_definitions( "/W3 /D_CRT_SECURE_NO_WARNINGS /wd4005 /wd4996 /nologo" )
if (JANSSON_STATIC_CRT)
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MT")
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MTd")
endif()
endif()
message("C compiler: ${CMAKE_C_COMPILER_ID}")
# Coverage only works with GCC for a debug build.
if (JANSSON_COVERALLS)
set(JANSSON_COVERAGE ON)
endif()
if (JANSSON_COVERAGE)
include(CodeCoverage)
include(Coveralls)
# This adds coverage arguments to gcc/clang.
coveralls_turn_on_coverage()
endif()
check_include_files (endian.h HAVE_ENDIAN_H)
check_include_files (fcntl.h HAVE_FCNTL_H)
check_include_files (sched.h HAVE_SCHED_H)
check_include_files (unistd.h HAVE_UNISTD_H)
check_include_files (sys/param.h HAVE_SYS_PARAM_H)
check_include_files (sys/stat.h HAVE_SYS_STAT_H)
check_include_files (sys/time.h HAVE_SYS_TIME_H)
check_include_files (sys/types.h HAVE_SYS_TYPES_H)
check_function_exists (close HAVE_CLOSE)
check_function_exists (getpid HAVE_GETPID)
check_function_exists (gettimeofday HAVE_GETTIMEOFDAY)
check_function_exists (open HAVE_OPEN)
check_function_exists (read HAVE_READ)
check_function_exists (sched_yield HAVE_SCHED_YIELD)
# Check for the int-type includes
check_include_files (stdint.h HAVE_STDINT_H)
# Check our 64 bit integer sizes
check_type_size (__int64 __INT64)
check_type_size (int64_t INT64_T)
check_type_size ("long long" LONG_LONG_INT)
# Check our 32 bit integer sizes
check_type_size (int32_t INT32_T)
check_type_size (__int32 __INT32)
check_type_size ("long" LONG_INT)
check_type_size ("int" INT)
if (HAVE_INT32_T)
set (JSON_INT32 int32_t)
elseif (HAVE___INT32)
set (JSON_INT32 __int32)
elseif (HAVE_LONG_INT AND (LONG_INT EQUAL 4))
set (JSON_INT32 long)
elseif (HAVE_INT AND (INT EQUAL 4))
set (JSON_INT32 int)
else ()
message (FATAL_ERROR "Could not detect a valid 32-bit integer type")
endif ()
check_type_size ("unsigned long" UNSIGNED_LONG_INT)
check_type_size ("unsigned int" UNSIGNED_INT)
check_type_size ("unsigned short" UNSIGNED_SHORT)
check_type_size (uint32_t UINT32_T)
check_type_size (__uint32 __UINT32)
if (HAVE_UINT32_T)
set (JSON_UINT32 uint32_t)
elseif (HAVE___UINT32)
set (JSON_UINT32 __uint32)
elseif (HAVE_UNSIGNED_LONG_INT AND (UNSIGNED_LONG_INT EQUAL 4))
set (JSON_UINT32 "unsigned long")
elseif (HAVE_UNSIGNED_INT AND (UNSIGNED_INT EQUAL 4))
set (JSON_UINT32 "unsigned int")
else ()
message (FATAL_ERROR "Could not detect a valid unsigned 32-bit integer type")
endif ()
check_type_size (uint16_t UINT16_T)
check_type_size (__uint16 __UINT16)
if (HAVE_UINT16_T)
set (JSON_UINT16 uint16_t)
elseif (HAVE___UINT16)
set (JSON_UINT16 __uint16)
elseif (HAVE_UNSIGNED_INT AND (UNSIGNED_INT EQUAL 2))
set (JSON_UINT16 "unsigned int")
elseif (HAVE_UNSIGNED_SHORT AND (UNSIGNED_SHORT EQUAL 2))
set (JSON_UINT16 "unsigned short")
else ()
message (FATAL_ERROR "Could not detect a valid unsigned 16-bit integer type")
endif ()
check_type_size (uint8_t UINT8_T)
check_type_size (__uint8 __UINT8)
if (HAVE_UINT8_T)
set (JSON_UINT8 uint8_t)
elseif (HAVE___UINT8)
set (JSON_UINT8 __uint8)
else ()
set (JSON_UINT8 "unsigned char")
endif ()
# Check for ssize_t and SSIZE_T existance.
check_type_size(ssize_t SSIZE_T)
check_type_size(SSIZE_T UPPERCASE_SSIZE_T)
if(NOT HAVE_SSIZE_T)
if(HAVE_UPPERCASE_SSIZE_T)
set(JSON_SSIZE SSIZE_T)
else()
set(JSON_SSIZE int)
endif()
endif()
set(CMAKE_EXTRA_INCLUDE_FILES "")
# Check for all the variants of strtoll
check_function_exists (strtoll HAVE_STRTOLL)
check_function_exists (strtoq HAVE_STRTOQ)
check_function_exists (_strtoi64 HAVE__STRTOI64)
# Figure out what variant we should use
if (HAVE_STRTOLL)
set (JSON_STRTOINT strtoll)
elseif (HAVE_STRTOQ)
set (JSON_STRTOINT strtoq)
elseif (HAVE__STRTOI64)
set (JSON_STRTOINT _strtoi64)
else ()
# fallback to strtol (32 bit)
# this will set all the required variables
set (JSON_STRTOINT strtol)
set (JSON_INT_T long)
set (JSON_INTEGER_FORMAT "\"ld\"")
endif ()
# if we haven't defined JSON_INT_T, then we have a 64 bit conversion function.
# detect what to use for the 64 bit type.
# Note: I will prefer long long if I can get it, as that is what the automake system aimed for.
if (NOT DEFINED JSON_INT_T)
if (HAVE_LONG_LONG_INT AND (LONG_LONG_INT EQUAL 8))
set (JSON_INT_T "long long")
elseif (HAVE_INT64_T)
set (JSON_INT_T int64_t)
elseif (HAVE___INT64)
set (JSON_INT_T __int64)
else ()
message (FATAL_ERROR "Could not detect 64 bit type, although I detected the strtoll equivalent")
endif ()
# Apparently, Borland BCC and MSVC wants I64d,
# Borland BCC could also accept LD
# and gcc wants ldd,
# I am not sure what cygwin will want, so I will assume I64d
if (WIN32) # matches both msvc and cygwin
set (JSON_INTEGER_FORMAT "\"I64d\"")
else ()
set (JSON_INTEGER_FORMAT "\"lld\"")
endif ()
endif ()
# If locale.h and localeconv() are available, define to 1, otherwise to 0.
check_include_files (locale.h HAVE_LOCALE_H)
check_function_exists (localeconv HAVE_LOCALECONV)
if (HAVE_LOCALECONV AND HAVE_LOCALE_H)
set (JSON_HAVE_LOCALECONV 1)
else ()
set (JSON_HAVE_LOCALECONV 0)
endif()
# check if we have setlocale
check_function_exists(setlocale HAVE_SETLOCALE)
# Check what the inline keyword is.
# Note that the original JSON_INLINE was always set to just 'inline', so this goes further.
check_function_keywords("inline")
check_function_keywords("__inline")
check_function_keywords("__inline__")
if (HAVE_INLINE)
set(JSON_INLINE inline)
elseif (HAVE___INLINE)
set(JSON_INLINE __inline)
elseif (HAVE___INLINE__)
set(JSON_INLINE __inline__)
else()
# no inline on this platform
set (JSON_INLINE)
endif()
check_c_source_compiles ("int main() { unsigned long val; __sync_bool_compare_and_swap(&val, 0, 1); __sync_add_and_fetch(&val, 1); __sync_sub_and_fetch(&val, 1); return 0; } " HAVE_SYNC_BUILTINS)
check_c_source_compiles ("int main() { char l; unsigned long v; __atomic_test_and_set(&l, __ATOMIC_RELAXED); __atomic_store_n(&v, 1, __ATOMIC_RELEASE); __atomic_load_n(&v, __ATOMIC_ACQUIRE); __atomic_add_fetch(&v, 1, __ATOMIC_ACQUIRE); __atomic_sub_fetch(&v, 1, __ATOMIC_RELEASE); return 0; }" HAVE_ATOMIC_BUILTINS)
if (HAVE_SYNC_BUILTINS)
set(JSON_HAVE_SYNC_BUILTINS 1)
else()
set(JSON_HAVE_SYNC_BUILTINS 0)
endif()
if (HAVE_ATOMIC_BUILTINS)
set(JSON_HAVE_ATOMIC_BUILTINS 1)
else()
set(JSON_HAVE_ATOMIC_BUILTINS 0)
endif()
set (JANSSON_INITIAL_HASHTABLE_ORDER 3 CACHE STRING "Number of buckets new object hashtables contain is 2 raised to this power. The default is 3, so empty hashtables contain 2^3 = 8 buckets.")
# configure the public config file
configure_file (${CMAKE_CURRENT_SOURCE_DIR}/cmake/jansson_config.h.cmake
${CMAKE_CURRENT_BINARY_DIR}/include/jansson_config.h)
# Copy the jansson.h file to the public include folder
file (COPY ${CMAKE_CURRENT_SOURCE_DIR}/src/jansson.h
DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/include/)
add_definitions(-DJANSSON_USING_CMAKE)
# configure the private config file
configure_file (${CMAKE_CURRENT_SOURCE_DIR}/cmake/jansson_private_config.h.cmake
${CMAKE_CURRENT_BINARY_DIR}/private_include/jansson_private_config.h)
# and tell the source code to include it
add_definitions(-DHAVE_CONFIG_H)
include_directories (${CMAKE_CURRENT_BINARY_DIR}/include)
include_directories (${CMAKE_CURRENT_BINARY_DIR}/private_include)
# Add the lib sources.
file(GLOB JANSSON_SRC src/*.c)
set(JANSSON_HDR_PRIVATE
${CMAKE_CURRENT_SOURCE_DIR}/src/hashtable.h
${CMAKE_CURRENT_SOURCE_DIR}/src/jansson_private.h
${CMAKE_CURRENT_SOURCE_DIR}/src/strbuffer.h
${CMAKE_CURRENT_SOURCE_DIR}/src/utf.h
${CMAKE_CURRENT_BINARY_DIR}/private_include/jansson_private_config.h)
set(JANSSON_HDR_PUBLIC
${CMAKE_CURRENT_BINARY_DIR}/include/jansson_config.h
${CMAKE_CURRENT_SOURCE_DIR}/src/jansson.h)
source_group("Library Sources" FILES ${JANSSON_SRC})
source_group("Library Private Headers" FILES ${JANSSON_HDR_PRIVATE})
source_group("Library Public Headers" FILES ${JANSSON_HDR_PUBLIC})
if(JANSSON_BUILD_SHARED_LIBS)
add_library(jansson SHARED
${JANSSON_SRC}
${JANSSON_HDR_PRIVATE}
${JANSSON_HDR_PUBLIC}
src/jansson.def)
set_target_properties(jansson PROPERTIES
VERSION ${JANSSON_VERSION}
SOVERSION ${JANSSON_SOVERSION})
else()
add_library(jansson STATIC
${JANSSON_SRC}
${JANSSON_HDR_PRIVATE}
${JANSSON_HDR_PUBLIC})
set_target_properties(jansson PROPERTIES
POSITION_INDEPENDENT_CODE true)
endif()
if (JANSSON_EXAMPLES)
add_executable(simple_parse "${CMAKE_CURRENT_SOURCE_DIR}/examples/simple_parse.c")
target_link_libraries(simple_parse jansson)
endif()
# For building Documentation (uses Sphinx)
option(JANSSON_BUILD_DOCS "Build documentation (uses python-sphinx)." ON)
if (JANSSON_BUILD_DOCS)
find_package(Sphinx)
if (NOT SPHINX_FOUND)
message(WARNING "Sphinx not found. Cannot generate documentation!
Set -DJANSSON_BUILD_DOCS=OFF to get rid of this message.")
else()
if (Sphinx_VERSION_STRING VERSION_LESS 1.0)
message(WARNING "Your Sphinx version is too old!
This project requires Sphinx v1.0 or above to produce
proper documentation (you have v${Sphinx_VERSION_STRING}).
You will get output but it will have errors.")
endif()
# configured documentation tools and intermediate build results
set(BINARY_BUILD_DIR "${CMAKE_CURRENT_BINARY_DIR}/_build")
# Sphinx cache with pickled ReST documents
set(SPHINX_CACHE_DIR "${CMAKE_CURRENT_BINARY_DIR}/_doctrees")
# CMake could be used to build the conf.py file too,
# eg it could automatically write the version of the program or change the theme.
# if(NOT DEFINED SPHINX_THEME)
# set(SPHINX_THEME default)
# endif()
#
# if(NOT DEFINED SPHINX_THEME_DIR)
# set(SPHINX_THEME_DIR)
# endif()
#
# configure_file(
# "${CMAKE_CURRENT_SOURCE_DIR}/conf.py.in"
# "${BINARY_BUILD_DIR}/conf.py"
# @ONLY)
# TODO: Add support for all sphinx builders: http://sphinx-doc.org/builders.html
# Add documentation targets.
set(DOC_TARGETS html)
option(JANSSON_BUILD_MAN "Create a target for building man pages." ON)
if (JANSSON_BUILD_MAN)
if (Sphinx_VERSION_STRING VERSION_LESS 1.0)
message(WARNING "Sphinx version 1.0 > is required to build man pages. You have v${Sphinx_VERSION_STRING}.")
else()
list(APPEND DOC_TARGETS man)
endif()
endif()
option(JANSSON_BUILD_LATEX "Create a target for building latex docs (to create PDF)." OFF)
if (JANSSON_BUILD_LATEX)
find_package(LATEX)
if (NOT LATEX_COMPILER)
message("Couldn't find Latex, can't build latex docs using Sphinx")
else()
message("Latex found! If you have problems building, see Sphinx documentation for required Latex packages.")
list(APPEND DOC_TARGETS latex)
endif()
endif()
# The doc target will build all documentation targets.
add_custom_target(doc)
foreach (DOC_TARGET ${DOC_TARGETS})
add_custom_target(${DOC_TARGET}
${SPHINX_EXECUTABLE}
# -q # Enable for quiet mode
-b ${DOC_TARGET}
-d "${SPHINX_CACHE_DIR}"
# -c "${BINARY_BUILD_DIR}" # enable if using cmake-generated conf.py
"${CMAKE_CURRENT_SOURCE_DIR}/doc"
"${CMAKE_CURRENT_BINARY_DIR}/doc/${DOC_TARGET}"
COMMENT "Building ${DOC_TARGET} documentation with Sphinx")
add_dependencies(doc ${DOC_TARGET})
endforeach()
message("Building documentation enabled for: ${DOC_TARGETS}")
endif()
endif ()
option(JANSSON_WITHOUT_TESTS "Don't build tests ('make test' to execute tests)" OFF)
if (NOT JANSSON_WITHOUT_TESTS)
option(JANSSON_TEST_WITH_VALGRIND "Enable valgrind tests." OFF)
ENABLE_TESTING()
if (JANSSON_TEST_WITH_VALGRIND)
# TODO: Add FindValgrind.cmake instead of having a hardcoded path.
add_definitions(-DVALGRIND)
# enable valgrind
set(CMAKE_MEMORYCHECK_COMMAND valgrind)
set(CMAKE_MEMORYCHECK_COMMAND_OPTIONS
"--error-exitcode=1 --leak-check=full --show-reachable=yes --track-origins=yes -q")
set(MEMCHECK_COMMAND
"${CMAKE_MEMORYCHECK_COMMAND} ${CMAKE_MEMORYCHECK_COMMAND_OPTIONS}")
separate_arguments(MEMCHECK_COMMAND)
endif ()
#
# Test suites.
#
if (CMAKE_COMPILER_IS_GNUCC)
add_definitions(-Wall -Wextra -Wdeclaration-after-statement)
endif ()
set(api_tests
test_array
test_copy
test_chaos
test_dump
test_dump_callback
test_equal
test_load
test_loadb
test_load_callback
test_number
test_object
test_pack
test_simple
test_sprintf
test_unpack)
# Doing arithmetic on void pointers is not allowed by Microsofts compiler
# such as secure_malloc and secure_free is doing, so exclude it for now.
if (NOT MSVC)
list(APPEND api_tests test_memory_funcs)
endif()
# Helper macro for building and linking a test program.
macro(build_testprog name dir)
add_executable(${name} ${dir}/${name}.c)
add_dependencies(${name} jansson)
target_link_libraries(${name} jansson)
endmacro(build_testprog)
# Create executables and tests/valgrind tests for API tests.
foreach (test ${api_tests})
build_testprog(${test} ${CMAKE_CURRENT_SOURCE_DIR}/test/suites/api)
if (JANSSON_TEST_WITH_VALGRIND)
add_test(memcheck__${test}
${MEMCHECK_COMMAND} ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${test}
WORKING_DIRECTORY ${JANSSON_TEMP_DIR})
else()
add_test(${test}
${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${test}
WORKING_DIRECTORY ${JANSSON_TEMP_DIR})
endif ()
endforeach ()
# Test harness for the suites tests.
build_testprog(json_process ${CMAKE_CURRENT_SOURCE_DIR}/test/bin)
set(SUITE_TEST_CMD ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/json_process)
set(SUITES encoding-flags valid invalid invalid-unicode)
foreach (SUITE ${SUITES})
file(GLOB TESTDIRS test/suites/${SUITE}/*)
foreach (TESTDIR ${TESTDIRS})
if (IS_DIRECTORY ${TESTDIR})
get_filename_component(TNAME ${TESTDIR} NAME)
if (JANSSON_TEST_WITH_VALGRIND)
add_test(memcheck__${SUITE}__${TNAME}
${MEMCHECK_COMMAND} ${SUITE_TEST_CMD} ${TESTDIR})
else()
add_test(${SUITE}__${TNAME}
${SUITE_TEST_CMD} ${TESTDIR})
endif()
if ((${SUITE} STREQUAL "valid" OR ${SUITE} STREQUAL "invalid") AND NOT EXISTS ${TESTDIR}/nostrip)
if (JANSSON_TEST_WITH_VALGRIND)
add_test(memcheck__${SUITE}__${TNAME}__strip
${MEMCHECK_COMMAND} ${SUITE_TEST_CMD} --strip ${TESTDIR})
else()
add_test(${SUITE}__${TNAME}__strip
${SUITE_TEST_CMD} --strip ${TESTDIR})
endif()
endif ()
endif ()
endforeach ()
endforeach ()
if (JANSSON_COVERAGE)
setup_target_for_coverage(
coverage # Coverage make target "make coverage".
coverage # Name of output directory.
make # Name of test runner executable.
test) # Arguments to the test runner above (make test).
if (JANSSON_COVERALLS)
set(COVERAGE_SRCS ${JANSSON_SRC})
coveralls_setup("${COVERAGE_SRCS}" ${JANSSON_COVERALLS_UPLOAD})
endif ()
endif ()
# Enable using "make check" just like the autotools project.
# By default cmake creates a target "make test"
add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND}
DEPENDS json_process ${api_tests})
endif ()
#
# Installation preparation.
#
# Allow the user to override installation directories.
set(JANSSON_INSTALL_LIB_DIR lib CACHE PATH "Installation directory for libraries")
set(JANSSON_INSTALL_BIN_DIR bin CACHE PATH "Installation directory for executables")
set(JANSSON_INSTALL_INCLUDE_DIR include CACHE PATH "Installation directory for header files")
if(WIN32 AND NOT CYGWIN)
set(DEF_INSTALL_CMAKE_DIR cmake)
else()
set(DEF_INSTALL_CMAKE_DIR lib/cmake/jansson)
endif()
set(JANSSON_INSTALL_CMAKE_DIR ${DEF_INSTALL_CMAKE_DIR} CACHE PATH "Installation directory for CMake files")
# Create pkg-conf file.
# (We use the same files as ./configure does, so we
# have to defined the same variables used there).
set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix "\${prefix}")
set(libdir "\${exec_prefix}/${JANSSON_INSTALL_LIB_DIR}")
set(includedir "\${prefix}/${JANSSON_INSTALL_INCLUDE_DIR}")
set(VERSION ${JANSSON_DISPLAY_VERSION})
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/jansson.pc.in
${CMAKE_CURRENT_BINARY_DIR}/jansson.pc @ONLY)
# Make sure the paths are relative.
foreach(p LIB BIN INCLUDE CMAKE)
set(var JANSSON_INSTALL_${p}_DIR)
endforeach()
# Generate the config file for the build-tree.
set(JANSSON__INCLUDE_DIRS
"${CMAKE_CURRENT_SOURCE_DIR}/include"
"${CMAKE_CURRENT_BINARY_DIR}/include")
set(JANSSON_INCLUDE_DIRS ${JANSSON__INCLUDE_DIRS} CACHE PATH "Jansson include directories")
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/janssonConfig.cmake.in
${CMAKE_CURRENT_BINARY_DIR}/janssonConfig.cmake
@ONLY)
# Generate the config file for the installation tree.
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/cmake/janssonConfigVersion.cmake"
VERSION ${JANSSON_VERSION}
COMPATIBILITY ExactVersion
)
configure_package_config_file(
"cmake/janssonConfig.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/cmake/janssonConfig.cmake"
INSTALL_DESTINATION "${JANSSON_INSTALL_CMAKE_DIR}"
)
#
# Install targets.
#
option(JANSSON_INSTALL "Generate installation target" ON)
if (JANSSON_INSTALL)
install(TARGETS jansson
EXPORT janssonTargets
LIBRARY DESTINATION "lib"
ARCHIVE DESTINATION "lib"
RUNTIME DESTINATION "bin"
INCLUDES DESTINATION "include")
install(FILES ${JANSSON_HDR_PUBLIC}
DESTINATION "include")
# Install the pkg-config.
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/jansson.pc
DESTINATION lib/pkgconfig)
# Install the configs.
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/cmake/janssonConfig.cmake
${CMAKE_CURRENT_BINARY_DIR}/cmake/janssonConfigVersion.cmake
DESTINATION "${JANSSON_INSTALL_CMAKE_DIR}")
# Install exports for the install-tree.
install(EXPORT janssonTargets
NAMESPACE jansson::
DESTINATION "${JANSSON_INSTALL_CMAKE_DIR}")
endif()
# For use when simply using add_library from a parent project to build jansson.
set(JANSSON_LIBRARIES jansson CACHE STRING "jansson libraries")