Initial docs

Signed-off-by: Ben Collins <[email protected]>

CMakeLists.txt

@@ -0,0 +1,108 @@
+cmake_minimum_required (VERSION 3.7...3.15)
+
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+
+if (${CMAKE_VERSION} VERSION_LESS 3.14.7 AND ${CMAKE_GENERATOR} STREQUAL "Visual Studio 16 2019")
+	message(FATAL_ERROR "Please update your version of CMake to version 3.14.7 or greater in order to use Visual Studio 2019")
+endif()
+
+if (MSVC)
+	set (CMAKE_SYSTEM_VERSION 8.1 CACHE TYPE INTERNAL FORCE)
+endif ()
+
+project (jwt)
+
+string(REPLACE "\\" "/" CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
+
+option (ENABLE_DEBUG_INFO_IN_RELEASE "Enable adding debug info to release build." OFF)
+option (ENABLE_LTO "Enable link time optimizations." OFF)
+option (BUILD_EXAMPLES "Build example projects." ON)
+
+if (MSVC)
+	option (STATIC_RUNTIME "Link runtome library statically." OFF)
+endif ()
+
+if (UNIX)
+	option (BUILD_TESTS "Build test projects." OFF)
+endif ()
+
+if (APPLE)
+	add_definitions(-DNO_WEAK_ALIASES)
+endif ()
+include_directories (include)
+
+if (MSVC)
+	set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Ox")
+endif ()
+
+if (STATIC_RUNTIME)
+	set (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MTd")
+	set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MT")
+	set (CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} /MT")
+	set (CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} /MT")
+endif ()
+
+if (ENABLE_DEBUG_INFO_IN_RELEASE)
+	if (MSVC)
+		set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Zi")
+		set (CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /DEBUG /OPT:REF /OPT:ICF")
+		set (CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /DEBUG /OPT:REF /OPT:ICF")
+	else ()
+		set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -g")
+	endif ()
+endif ()
+
+if (ENABLE_LTO)
+	if (MSVC)
+		set (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /GL")
+		set (CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL} /GL")
+		set (CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} /GL")
+
+		set (CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /LTCG")
+		set (CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL} /LTCG")
+		set (CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO} /LTCG")
+
+		set (CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_SHARED_LINKER_FLAGS_RELEASE} /LTCG")
+		set (CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "${CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL} /LTCG")
+		set (CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO} /LTCG")
+	endif ()
+endif ()
+
+add_subdirectory (libjwt)
+
+if (${BUILD_EXAMPLES})
+	add_subdirectory (examples)
+endif()
+
+if (${BUILD_TESTS})
+	add_subdirectory (tests)
+endif ()
+
+
+# extract version from configure.ac
+FILE(READ "${CMAKE_CURRENT_SOURCE_DIR}/configure.ac" configure_ac_contents)
+STRING(REGEX REPLACE ";" "\\\\;" configure_ac_contents "${configure_ac_contents}")
+STRING(REGEX REPLACE "\n" ";" configure_ac_contents "${configure_ac_contents}")
+foreach(configure_ac_line ${configure_ac_contents})
+	if("${configure_ac_line}" MATCHES "^[ ]*AC_INIT")
+		string(REGEX MATCH "[0-9]+\.[0-9]+\.[0-9]+" version_string "${configure_ac_line}")
+		message(STATUS "version from configure.ac: '${version_string}'")
+		break()
+	endif()
+endforeach()
+
+set(INCLUDE_INSTALL_DIR include/)
+set(LIB_INSTALL_DIR lib/)
+set(LIBJWT_VERSION ${version_string})
+include(CMakePackageConfigHelpers)
+configure_package_config_file(cmake/libjwtConfig.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/libjwtConfig.cmake
+  INSTALL_DESTINATION ${LIB_INSTALL_DIR}/libjwt/cmake
+  PATH_VARS INCLUDE_INSTALL_DIR)
+write_basic_package_version_file(
+  ${CMAKE_CURRENT_BINARY_DIR}/libjwtConfigVersion.cmake
+  VERSION ${LIBJWT_VERSION}
+  COMPATIBILITY SameMajorVersion )
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libjwtConfig.cmake
+              ${CMAKE_CURRENT_BINARY_DIR}/libjwtConfigVersion.cmake
+        DESTINATION ${LIB_INSTALL_DIR}/libjwt/cmake )