<commit_before>cmake_minimum_required(VERSION 2.8)

if(NOT DEFINED CMAKE_BUILD_TYPE)
	set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type")
endif()

project(libwebsockets C)

set(PACKAGE "libwebsockets")
set(CPACK_PACKAGE_NAME "${PACKAGE}")
set(CPACK_PACKAGE_VERSION_MAJOR "1")
set(CPACK_PACKAGE_VERSION_MINOR "5")
set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")
set(CPACK_PACKAGE_VENDOR "<EMAIL>")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "${PACKAGE} ${PACKAGE_VERSION}")
set(SOVERSION "5")
set(CPACK_SOURCE_GENERATOR "TGZ")
set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
set(VERSION "${CPACK_PACKAGE_VERSION}")

set(LWS_LIBRARY_VERSION ${CPACK_PACKAGE_VERSION})
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/cmake/")

message(STATUS "CMAKE_TOOLCHAIN_FILE='${CMAKE_TOOLCHAIN_FILE}'")

# Try to find the current Git hash.
find_package(Git)
if(GIT_EXECUTABLE)
	execute_process(
    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
    COMMAND "${GIT_EXECUTABLE}" log -n 1 --pretty=%h
    OUTPUT_VARIABLE GIT_HASH
    OUTPUT_STRIP_TRAILING_WHITESPACE
    )

    set(LWS_BUILD_HASH ${GIT_HASH})
    message("Git commit hash: ${LWS_BUILD_HASH}")
endif()

set(LWS_USE_BUNDLED_ZLIB_DEFAULT OFF)
if(WIN32)
	set(LWS_USE_BUNDLED_ZLIB_DEFAULT ON)
endif()

option(LWS_WITH_STATIC "Build the static version of the library" ON)
option(LWS_WITH_SHARED "Build the shared version of the library" ON)
option(LWS_WITH_SSL "Include SSL support (default OpenSSL, wolfSSL if LWS_USE_WOLFSSL is set)" ON)
option(LWS_USE_CYASSL "Use CyaSSL replacement for OpenSSL. When setting this, you also need to specify LWS_CYASSL_LIBRARIES and LWS_CYASSL_INCLUDE_DIRS" OFF)
option(LWS_USE_WOLFSSL "Use wolfSSL replacement for OpenSSL. When setting this, you also need to specify LWS_WOLFSSL_LIBRARIES and LWS_WOLFSSL_INCLUDE_DIRS" OFF)
option(LWS_WITH_ZLIB "Include zlib support (required for extensions)" ON)
option(LWS_WITH_LIBEV "Compile with support for libev" OFF)
option(LWS_USE_BUNDLED_ZLIB "Use bundled zlib version (Windows only)" ${LWS_USE_BUNDLED_ZLIB_DEFAULT})
option(LWS_SSL_CLIENT_USE_OS_CA_CERTS "SSL support should make use of the OS-installed CA root certs" ON)
option(LWS_WITHOUT_BUILTIN_GETIFADDRS "Don't use the BSD getifaddrs implementation from libwebsockets if it is missing (this will result in a compilation error) ... The default is to assume that your libc provides it. On some systems such as uclibc it doesn't exist." OFF)
option(LWS_WITHOUT_BUILTIN_SHA1 "Don't build the lws sha-1 (eg, because openssl will provide it" OFF)
option(LWS_WITHOUT_CLIENT "Don't build the client part of the library" OFF)
option(LWS_WITHOUT_SERVER "Don't build the server part of the library" OFF)
option(LWS_LINK_TESTAPPS_DYNAMIC "Link the test apps to the shared version of the library. Default is to link statically" OFF)
option(LWS_WITHOUT_TESTAPPS "Don't build the libwebsocket-test-apps" OFF)
option(LWS_WITHOUT_TEST_SERVER "Don't build the test server" OFF)
option(LWS_WITHOUT_TEST_SERVER_EXTPOLL "Don't build the test server version that uses external poll" OFF)
option(LWS_WITHOUT_TEST_PING "Don't build the ping test application" OFF)
option(LWS_WITHOUT_TEST_CLIENT "Don't build the client test application" OFF)
option(LWS_WITHOUT_TEST_FRAGGLE "Don't build the ping test application" OFF)
option(LWS_WITHOUT_EXTENSIONS "Don't compile with extensions" OFF)
option(LWS_WITH_LATENCY "Build latency measuring code into the library" OFF)
option(LWS_WITHOUT_DAEMONIZE "Don't build the daemonization api" ON)
option(LWS_IPV6 "Compile with support for ipv6" OFF)
option(LWS_WITH_HTTP2 "Compile with support for http2" OFF)

# Allow the user to override installation directories.
set(LWS_INSTALL_LIB_DIR       lib CACHE PATH "Installation directory for libraries")
set(LWS_INSTALL_BIN_DIR       bin CACHE PATH "Installation directory for executables")
set(LWS_INSTALL_INCLUDE_DIR   include CACHE PATH "Installation directory for header files")
set(LWS_INSTALL_EXAMPLES_DIR  bin CACHE PATH "Installation directory for example files")

# Allow the user to use the old CyaSSL options/library in stead of wolfSSL
if (LWS_USE_CYASSL AND LWS_USE_WOLFSSL)
	message(FATAL_ERROR "LWS_USE_CYASSL and LWS_USE_WOLFSSL are mutually exclusive!")
endif()
if (LWS_USE_CYASSL)
	# Copy CyaSSL options to the wolfSSL options
	set(LWS_USE_WOLFSSL ${LWS_USE_CYASSL} CACHE BOOL "Use wolfSSL/CyaSSL instead of OpenSSL" FORCE)
	set(LWS_WOLFSSL_LIBRARIES ${LWS_CYASSL_LIBRARIES} CACHE PATH "Path to wolfSSL/CyaSSL libraries" FORCE)
	set(LWS_WOLFSSL_INCLUDE_DIRS ${LWS_CYASSL_INCLUDE_DIRS} CACHE PATH "Path to wolfSSL/CyaSSL header files" FORCE)
endif()

if (LWS_WITHOUT_CLIENT AND LWS_WITHOUT_SERVER)
	message(FATAL_ERROR "Makes no sense to compile with neither client nor server.")
endif()

if (NOT (LWS_WITH_STATIC OR LWS_WITH_SHARED))
	message(FATAL_ERROR "Makes no sense to compile with neither static nor shared libraries.")
endif()

if (NOT LWS_WITHOUT_EXTENSIONS)
	if (NOT LWS_WITH_ZLIB)
		message(FATAL_ERROR "zlib is required for extensions.")
	endif()
endif()

set(LWS_ZLIB_LIBRARIES CACHE PATH "Path to the zlib library")
set(LWS_ZLIB_INCLUDE_DIRS CACHE PATH "Path to the zlib include directory")
set(LWS_OPENSSL_LIBRARIES CACHE PATH "Path to the OpenSSL library")
set(LWS_OPENSSL_INCLUDE_DIRS CACHE PATH "Path to the OpenSSL include directory")
set(LWS_WOLFSSL_LIBRARIES CACHE PATH "Path to the wolfSSL library")
set(LWS_WOLFSSL_INCLUDE_DIRS CACHE PATH "Path to the wolfSSL include directory")
set(LWS_LIBEV_LIBRARIES CACHE PATH "Path to the libev library")
set(LWS_LIBEV_INCLUDE_DIRS CACHE PATH "Path to the libev include directory")

if (LWS_WITH_SSL AND NOT LWS_USE_WOLFSSL)
	if ("${LWS_OPENSSL_LIBRARIES}" STREQUAL "" OR "${LWS_OPENSSL_INCLUDE_DIRS}" STREQUAL "")
	else()
		set(OPENSSL_LIBRARIES ${LWS_OPENSSL_LIBRARIES})
		set(OPENSSL_INCLUDE_DIRS ${LWS_OPENSSL_INCLUDE_DIRS})
		set(OPENSSL_FOUND 1)
	endif()
endif()

if (LWS_WITH_SSL AND LWS_USE_WOLFSSL)
	if ("${LWS_WOLFSSL_LIBRARIES}" STREQUAL "" OR "${LWS_WOLFSSL_INCLUDE_DIRS}" STREQUAL "")
		if (NOT WOLFSSL_FOUND)
			if (LWS_USE_CYASSL)
				message(FATAL_ERROR "You must set LWS_CYASSL_LIBRARIES and LWS_CYASSL_INCLUDE_DIRS when LWS_USE_CYASSL is turned on.")
			else()
				message(FATAL_ERROR "You must set LWS_WOLFSSL_LIBRARIES and LWS_WOLFSSL_INCLUDE_DIRS when LWS_USE_WOLFSSL is turned on.")
			endif()
		endif()
	else()
		set(WOLFSSL_LIBRARIES ${LWS_WOLFSSL_LIBRARIES})
		set(WOLFSSL_INCLUDE_DIRS ${LWS_WOLFSSL_INCLUDE_DIRS})
		set(WOLFSSL_FOUND 1)
	endif()
	set(USE_WOLFSSL 1)
	if (LWS_USE_CYASSL)
		set(USE_OLD_CYASSL 1)
	endif()<commit_msg>cmake force internal SHA1 if no ssl<commit_after>cmake_minimum_required(VERSION 2.8)

if(NOT DEFINED CMAKE_BUILD_TYPE)
	set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type")
endif()

project(libwebsockets C)

set(PACKAGE "libwebsockets")
set(CPACK_PACKAGE_NAME "${PACKAGE}")
set(CPACK_PACKAGE_VERSION_MAJOR "1")
set(CPACK_PACKAGE_VERSION_MINOR "5")
set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")
set(CPACK_PACKAGE_VENDOR "<EMAIL>")
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "${PACKAGE} ${PACKAGE_VERSION}")
set(SOVERSION "5")
set(CPACK_SOURCE_GENERATOR "TGZ")
set(CPACK_SOURCE_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}")
set(VERSION "${CPACK_PACKAGE_VERSION}")

set(LWS_LIBRARY_VERSION ${CPACK_PACKAGE_VERSION})
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${PROJECT_SOURCE_DIR}/cmake/")

message(STATUS "CMAKE_TOOLCHAIN_FILE='${CMAKE_TOOLCHAIN_FILE}'")

# Try to find the current Git hash.
find_package(Git)
if(GIT_EXECUTABLE)
	execute_process(
    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
    COMMAND "${GIT_EXECUTABLE}" log -n 1 --pretty=%h
    OUTPUT_VARIABLE GIT_HASH
    OUTPUT_STRIP_TRAILING_WHITESPACE
    )

    set(LWS_BUILD_HASH ${GIT_HASH})
    message("Git commit hash: ${LWS_BUILD_HASH}")
endif()

set(LWS_USE_BUNDLED_ZLIB_DEFAULT OFF)
if(WIN32)
	set(LWS_USE_BUNDLED_ZLIB_DEFAULT ON)
endif()

option(LWS_WITH_STATIC "Build the static version of the library" ON)
option(LWS_WITH_SHARED "Build the shared version of the library" ON)
option(LWS_WITH_SSL "Include SSL support (default OpenSSL, wolfSSL if LWS_USE_WOLFSSL is set)" ON)
option(LWS_USE_CYASSL "Use CyaSSL replacement for OpenSSL. When setting this, you also need to specify LWS_CYASSL_LIBRARIES and LWS_CYASSL_INCLUDE_DIRS" OFF)
option(LWS_USE_WOLFSSL "Use wolfSSL replacement for OpenSSL. When setting this, you also need to specify LWS_WOLFSSL_LIBRARIES and LWS_WOLFSSL_INCLUDE_DIRS" OFF)
option(LWS_WITH_ZLIB "Include zlib support (required for extensions)" ON)
option(LWS_WITH_LIBEV "Compile with support for libev" OFF)
option(LWS_USE_BUNDLED_ZLIB "Use bundled zlib version (Windows only)" ${LWS_USE_BUNDLED_ZLIB_DEFAULT})
option(LWS_SSL_CLIENT_USE_OS_CA_CERTS "SSL support should make use of the OS-installed CA root certs" ON)
option(LWS_WITHOUT_BUILTIN_GETIFADDRS "Don't use the BSD getifaddrs implementation from libwebsockets if it is missing (this will result in a compilation error) ... The default is to assume that your libc provides it. On some systems such as uclibc it doesn't exist." OFF)
option(LWS_WITHOUT_BUILTIN_SHA1 "Don't build the lws sha-1 (eg, because openssl will provide it" OFF)
option(LWS_WITHOUT_CLIENT "Don't build the client part of the library" OFF)
option(LWS_WITHOUT_SERVER "Don't build the server part of the library" OFF)
option(LWS_LINK_TESTAPPS_DYNAMIC "Link the test apps to the shared version of the library. Default is to link statically" OFF)
option(LWS_WITHOUT_TESTAPPS "Don't build the libwebsocket-test-apps" OFF)
option(LWS_WITHOUT_TEST_SERVER "Don't build the test server" OFF)
option(LWS_WITHOUT_TEST_SERVER_EXTPOLL "Don't build the test server version that uses external poll" OFF)
option(LWS_WITHOUT_TEST_PING "Don't build the ping test application" OFF)
option(LWS_WITHOUT_TEST_CLIENT "Don't build the client test application" OFF)
option(LWS_WITHOUT_TEST_FRAGGLE "Don't build the ping test application" OFF)
option(LWS_WITHOUT_EXTENSIONS "Don't compile with extensions" OFF)
option(LWS_WITH_LATENCY "Build latency measuring code into the library" OFF)
option(LWS_WITHOUT_DAEMONIZE "Don't build the daemonization api" ON)
option(LWS_IPV6 "Compile with support for ipv6" OFF)
option(LWS_WITH_HTTP2 "Compile with support for http2" OFF)

# Allow the user to override installation directories.
set(LWS_INSTALL_LIB_DIR       lib CACHE PATH "Installation directory for libraries")
set(LWS_INSTALL_BIN_DIR       bin CACHE PATH "Installation directory for executables")
set(LWS_INSTALL_INCLUDE_DIR   include CACHE PATH "Installation directory for header files")
set(LWS_INSTALL_EXAMPLES_DIR  bin CACHE PATH "Installation directory for example files")

# Allow the user to use the old CyaSSL options/library in stead of wolfSSL
if (LWS_USE_CYASSL AND LWS_USE_WOLFSSL)
	message(FATAL_ERROR "LWS_USE_CYASSL and LWS_USE_WOLFSSL are mutually exclusive!")
endif()
if (LWS_USE_CYASSL)
	# Copy CyaSSL options to the wolfSSL options
	set(LWS_USE_WOLFSSL ${LWS_USE_CYASSL} CACHE BOOL "Use wolfSSL/CyaSSL instead of OpenSSL" FORCE)
	set(LWS_WOLFSSL_LIBRARIES ${LWS_CYASSL_LIBRARIES} CACHE PATH "Path to wolfSSL/CyaSSL libraries" FORCE)
	set(LWS_WOLFSSL_INCLUDE_DIRS ${LWS_CYASSL_INCLUDE_DIRS} CACHE PATH "Path to wolfSSL/CyaSSL header files" FORCE)
endif()

if (LWS_WITHOUT_CLIENT AND LWS_WITHOUT_SERVER)
	message(FATAL_ERROR "Makes no sense to compile with neither client nor server.")
endif()

if (NOT (LWS_WITH_STATIC OR LWS_WITH_SHARED))
	message(FATAL_ERROR "Makes no sense to compile with neither static nor shared libraries.")
endif()

if (NOT LWS_WITHOUT_EXTENSIONS)
	if (NOT LWS_WITH_ZLIB)
		message(FATAL_ERROR "zlib is required for extensions.")
	endif()
endif()

set(LWS_ZLIB_LIBRARIES CACHE PATH "Path to the zlib library")
set(LWS_ZLIB_INCLUDE_DIRS CACHE PATH "Path to the zlib include directory")
set(LWS_OPENSSL_LIBRARIES CACHE PATH "Path to the OpenSSL library")
set(LWS_OPENSSL_INCLUDE_DIRS CACHE PATH "Path to the OpenSSL include directory")
set(LWS_WOLFSSL_LIBRARIES CACHE PATH "Path to the wolfSSL library")
set(LWS_WOLFSSL_INCLUDE_DIRS CACHE PATH "Path to the wolfSSL include directory")
set(LWS_LIBEV_LIBRARIES CACHE PATH "Path to the libev library")
set(LWS_LIBEV_INCLUDE_DIRS CACHE PATH "Path to the libev include directory")

if (NOT LWS_WITH_SSL)
	set(LWS_WITHOUT_BUILTIN_SHA1 OFF)
endif()

if (LWS_WITH_SSL AND NOT LWS_USE_WOLFSSL)
	if ("${LWS_OPENSSL_LIBRARIES}" STREQUAL "" OR "${LWS_OPENSSL_INCLUDE_DIRS}" STREQUAL "")
	else()
		set(OPENSSL_LIBRARIES ${LWS_OPENSSL_LIBRARIES})
		set(OPENSSL_INCLUDE_DIRS ${LWS_OPENSSL_INCLUDE_DIRS})
		set(OPENSSL_FOUND 1)
	endif()
endif()

if (LWS_WITH_SSL AND LWS_USE_WOLFSSL)
	if ("${LWS_WOLFSSL_LIBRARIES}" STREQUAL "" OR "${LWS_WOLFSSL_INCLUDE_DIRS}" STREQUAL "")
		if (NOT WOLFSSL_FOUND)
			if (LWS_USE_CYASSL)
				message(FATAL_ERROR "You must set LWS_CYASSL_LIBRARIES and LWS_CYASSL_INCLUDE_DIRS when LWS_USE_CYASSL is turned on.")
			else()
				message(FATAL_ERROR "You must set LWS_WOLFSSL_LIBRARIES and LWS_WOLFSSL_INCLUDE_DIRS when LWS_USE_WOLFSSL is turned on.")
			endif()
		endif()
	else()
		set(WOLFSSL_LIBRARIES ${LWS_WOLFSSL_LIBRARIES})
		set(WOLFSSL_INCLUDE_DIRS ${LWS_WOLFSSL_INCLUDE_DIRS})
		set(WOLFSSL_FOUND 1)
	endif()
	set(USE_WOLFSSL 1)
	if (LWS_USE_CYASSL)
		set(USE_OLD_CYASSL 1)
	endif()
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