libressl/CMakeLists.txt

#
# Copyright (c) 2015 Brent Cook
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

cmake_minimum_required (VERSION 3.16.4)

if(MSVC)
	cmake_policy(SET CMP0091 NEW)
endif()

project(LibreSSL LANGUAGES C ASM)

include(CheckFunctionExists)
include(CheckSymbolExists)
include(CheckLibraryExists)
include(CheckIncludeFiles)
include(CheckTypeSize)

set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}" ${CMAKE_MODULE_PATH})
include(cmake_export_symbol)
include(GNUInstallDirs)

enable_testing()

file(READ ${CMAKE_CURRENT_SOURCE_DIR}/ssl/VERSION SSL_VERSION)
string(STRIP ${SSL_VERSION} SSL_VERSION)
string(REPLACE ":" "." SSL_VERSION ${SSL_VERSION})
string(REGEX REPLACE "\\..*" "" SSL_MAJOR_VERSION ${SSL_VERSION})

file(READ ${CMAKE_CURRENT_SOURCE_DIR}/crypto/VERSION CRYPTO_VERSION)
string(STRIP ${CRYPTO_VERSION} CRYPTO_VERSION)
string(REPLACE ":" "." CRYPTO_VERSION ${CRYPTO_VERSION})
string(REGEX REPLACE "\\..*" "" CRYPTO_MAJOR_VERSION ${CRYPTO_VERSION})

file(READ ${CMAKE_CURRENT_SOURCE_DIR}/tls/VERSION TLS_VERSION)
string(STRIP ${TLS_VERSION} TLS_VERSION)
string(REPLACE ":" "." TLS_VERSION ${TLS_VERSION})
string(REGEX REPLACE "\\..*" "" TLS_MAJOR_VERSION ${TLS_VERSION})

option(LIBRESSL_SKIP_INSTALL "Skip installation" ${LIBRESSL_SKIP_INSTALL})
option(LIBRESSL_APPS "Build apps" ON)
option(LIBRESSL_TESTS "Build tests" ON)
option(ENABLE_ASM "Enable assembly" ON)
option(ENABLE_EXTRATESTS "Enable extra tests that may be unreliable on some platforms" OFF)
option(ENABLE_NC "Enable installing TLS-enabled nc(1)" OFF)
set(OPENSSLDIR ${OPENSSLDIR} CACHE PATH "Set the default openssl directory" FORCE)
set(LIBRESSL_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/LibreSSL" CACHE STRING "Installation directory for the CMake targets")

option(USE_STATIC_MSVC_RUNTIMES "Use /MT instead of /MD in MSVC" OFF)
if(USE_STATIC_MSVC_RUNTIMES)
    set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
endif()

if(NOT LIBRESSL_SKIP_INSTALL)
	set( ENABLE_LIBRESSL_INSTALL ON )
endif(NOT LIBRESSL_SKIP_INSTALL)

# Set a default build type if none was specified
set(default_build_type "Release")

if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  message(STATUS "Setting build type to '${default_build_type}' as none was specified.")
  set(CMAKE_BUILD_TYPE "${default_build_type}" CACHE
      STRING "Choose the type of build." FORCE)
  # Set the possible values of build type for cmake-gui
  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY
	  STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()

# Do not disable assertions based on CMAKE_BUILD_TYPE
foreach(_build_type "Release" "MinSizeRel" "RelWithDebInfo")
	foreach(_lang C CXX)
		string(TOUPPER "CMAKE_${_lang}_FLAGS_${_build_type}" _var)
		string(REGEX REPLACE "(^| )[/-]D *NDEBUG($| )" " " ${_var} "${${_var}}")
	endforeach()
endforeach()

set(BUILD_NC true)

if(CMAKE_SYSTEM_NAME MATCHES "OpenBSD")
	add_definitions(-DHAVE_ATTRIBUTE__BOUNDED__)
	add_definitions(-DHAVE_ATTRIBUTE__DEAD__)
endif()

if(CMAKE_SYSTEM_NAME MATCHES "Linux")
	add_definitions(-D_DEFAULT_SOURCE)
	add_definitions(-D_BSD_SOURCE)
	add_definitions(-D_POSIX_SOURCE)
	add_definitions(-D_GNU_SOURCE)
	set(PLATFORM_LIBS ${PLATFORM_LIBS} pthread)
endif()

if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
	set(PLATFORM_LIBS ${PLATFORM_LIBS} pthread)
endif()

if(WIN32)
	set(BUILD_NC false)
	if(MINGW)
		add_definitions(-D_GNU_SOURCE)
		add_definitions(-D_POSIX)
		add_definitions(-D_POSIX_SOURCE)
		add_definitions(-D__USE_MINGW_ANSI_STDIO)
	endif()
endif()

if(CMAKE_SYSTEM_NAME MATCHES "HP-UX")
	if(CMAKE_C_COMPILER MATCHES "gcc")
		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -fno-strict-aliasing")
		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mlp64")
	else()
		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} +DD64 +Otype_safety=off")
	endif()
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=600 -D__STRICT_ALIGNMENT")
	set(PLATFORM_LIBS ${PLATFORM_LIBS} pthread)
endif()

if(CMAKE_SYSTEM_NAME MATCHES "SunOS")
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -fno-strict-aliasing")
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__EXTENSIONS__")
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=600")
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBSD_COMP")
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fpic")
	set(PLATFORM_LIBS ${PLATFORM_LIBS} dl md nsl socket)
endif()

add_definitions(-DLIBRESSL_INTERNAL)
add_definitions(-DOPENSSL_NO_HW_PADLOCK)
add_definitions(-D__BEGIN_HIDDEN_DECLS=)
add_definitions(-D__END_HIDDEN_DECLS=)

set(CMAKE_POSITION_INDEPENDENT_CODE true)

if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
	add_compile_options(-Wno-pointer-sign)
endif()

if(WIN32)
	add_definitions(-D_CRT_SECURE_NO_WARNINGS)
	add_definitions(-D_CRT_DEPRECATED_NO_WARNINGS)
	add_definitions(-D_REENTRANT -D_POSIX_THREAD_SAFE_FUNCTIONS)
	add_definitions(-DNO_SYSLOG)
	add_definitions(-DWIN32_LEAN_AND_MEAN)
	if(NOT CMAKE_SYSTEM_NAME MATCHES "WindowsStore")
		add_definitions(-D_WIN32_WINNT=0x0600)
	endif()
	set(PLATFORM_LIBS ${PLATFORM_LIBS} ws2_32 ntdll bcrypt)
endif()

if(MSVC)
	add_definitions(-Dinline=__inline)
	message(STATUS "Using [${CMAKE_C_COMPILER_ID}] compiler")

	include(TestBigEndian)
	TEST_BIG_ENDIAN(HAVE_BIG_ENDIAN)
	if(HAVE_BIG_ENDIAN)
		add_definitions(-DHAVE_BIG_ENDIAN)
	else()
		add_definitions(-DHAVE_LITTLE_ENDIAN)
	endif()

	if(CMAKE_C_COMPILER_ID MATCHES "MSVC" OR CMAKE_C_COMPILER_ID MATCHES "Clang")
		set(MSVC_DISABLED_WARNINGS_LIST
			"C4018" # 'expression' : signed/unsigned mismatch
			"C4057" # 'operator' : 'identifier1' indirection to
			        # slightly different base types from 'identifier2'
			"C4100" # 'identifier' : unreferenced formal parameter
			"C4127" # conditional expression is constant
			"C4132" # 'object' : const object should be initialized
			"C4146" # unary minus operator applied to unsigned type,
			        # result still unsigned
			"C4206" # nonstandard extension used : translation unit is empty
			"C4244" # 'argument' : conversion from 'type1' to 'type2',
			        # possible loss of data
			"C4245" # 'conversion' : conversion from 'type1' to 'type2',
			        # signed/unsigned mismatch
			"C4267" # 'var' : conversion from 'size_t' to 'type',
			        # possible loss of data
			"C4295" # 'array' : array is too small to include a terminating
			        # null character
			"C4389" # 'operator' : signed/unsigned mismatch
			"C4706" # assignment within conditional expression
			"C4996" # The POSIX name for this item is deprecated.
			        # Instead, use the ISO C and C++ conformant name
		)
	elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
		add_definitions(-D_CRT_SUPPRESS_RESTRICT)
		set(MSVC_DISABLED_WARNINGS_LIST
			"C111"  # Unreachable statement
			"C128"  # Unreachable loop
			"C167"  # Unexplict casting unsigned to signed
			"C186"  # Pointless comparison of unsigned int with zero
			"C188"  # Enumerated type mixed with another type
			"C344"  # Redeclared type
			"C556"  # Unexplict casting signed to unsigned
			"C869"  # Unreferenced parameters
			"C1786" # Deprecated functions
			"C2545" # Empty else statement
			"C2557" # Comparing signed to unsigned
			"C2722" # List init syntax is c++11 feature
			"C3280" # Declaration hides variable
		)
	endif()
	string(REPLACE "C" " -wd" MSVC_DISABLED_WARNINGS_STR
		${MSVC_DISABLED_WARNINGS_LIST})
	string(REGEX REPLACE "[/-]W[1234][ ]?" "" CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -MP -W4 ${MSVC_DISABLED_WARNINGS_STR}")
else()
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
endif()

# XXX - needs _GNU_SOURCE on linux
check_function_exists(asprintf HAVE_ASPRINTF)
if(HAVE_ASPRINTF)
	add_definitions(-DHAVE_ASPRINTF)
endif()

check_symbol_exists(getdelim "stdio.h" HAVE_GETDELIM)
if(HAVE_GETDELIM)
	add_definitions(-DHAVE_GETDELIM)
endif()

check_symbol_exists(getline "stdio.h" HAVE_GETLINE)
if(HAVE_GETLINE)
	add_definitions(-DHAVE_GETLINE)
endif()

check_symbol_exists(getopt "unistd.h" HAVE_GETOPT)
if(HAVE_GETOPT)
	add_definitions(-DHAVE_GETOPT)
endif()

check_symbol_exists(reallocarray "stdlib.h" HAVE_REALLOCARRAY)
if(HAVE_REALLOCARRAY)
	add_definitions(-DHAVE_REALLOCARRAY)
endif()

# XXX strcasecmp() is in strings.h which isn't available everywhere
check_function_exists(strcasecmp HAVE_STRCASECMP)
if(HAVE_STRCASECMP)
	add_definitions(-DHAVE_STRCASECMP)
endif()

# Emscripten's strlcat and strlcpy triggers ASAN errors
if(NOT EMSCRIPTEN)
	check_symbol_exists(strlcat "string.h" HAVE_STRLCAT)
	if(HAVE_STRLCAT)
		add_definitions(-DHAVE_STRLCAT)
	endif()

	check_symbol_exists(strlcpy "string.h" HAVE_STRLCPY)
	if(HAVE_STRLCPY)
		add_definitions(-DHAVE_STRLCPY)
	endif()
endif()

check_symbol_exists(strndup "string.h" HAVE_STRNDUP)
if(HAVE_STRNDUP)
	add_definitions(-DHAVE_STRNDUP)
endif()

if(WIN32)
	set(HAVE_STRNLEN true)
	add_definitions(-DHAVE_STRNLEN)
else()
	check_symbol_exists(strnlen "string.h" HAVE_STRNLEN)
	if(HAVE_STRNLEN)
		add_definitions(-DHAVE_STRNLEN)
	endif()
endif()

check_symbol_exists(strsep "string.h" HAVE_STRSEP)
if(HAVE_STRSEP)
	add_definitions(-DHAVE_STRSEP)
endif()

check_symbol_exists(strtonum "stdlib.h" HAVE_STRTONUM)
if(HAVE_STRTONUM)
	add_definitions(-DHAVE_STRTONUM)
endif()

check_symbol_exists(arc4random_buf "stdlib.h" HAVE_ARC4RANDOM_BUF)
if(HAVE_ARC4RANDOM_BUF)
	add_definitions(-DHAVE_ARC4RANDOM_BUF)
endif()

check_symbol_exists(arc4random_uniform "stdlib.h" HAVE_ARC4RANDOM_UNIFORM)
if(HAVE_ARC4RANDOM_UNIFORM)
	add_definitions(-DHAVE_ARC4RANDOM_UNIFORM)
endif()

check_symbol_exists(explicit_bzero "string.h" HAVE_EXPLICIT_BZERO)
if(HAVE_EXPLICIT_BZERO)
	add_definitions(-DHAVE_EXPLICIT_BZERO)
endif()

check_symbol_exists(getauxval "sys/auxv.h" HAVE_GETAUXVAL)
if(HAVE_GETAUXVAL)
	add_definitions(-DHAVE_GETAUXVAL)
endif()

# XXX macos fails to find getentropy with check_symbol_exists()
check_function_exists(getentropy HAVE_GETENTROPY)
if(HAVE_GETENTROPY)
	add_definitions(-DHAVE_GETENTROPY)
endif()

check_symbol_exists(getpagesize "unistd.h" HAVE_GETPAGESIZE)
if(HAVE_GETPAGESIZE)
	add_definitions(-DHAVE_GETPAGESIZE)
endif()

check_symbol_exists(getprogname "stdlib.h" HAVE_GETPROGNAME)
if(HAVE_GETPROGNAME)
	add_definitions(-DHAVE_GETPROGNAME)
endif()

check_symbol_exists(syslog_r "syslog.h;stdarg.h" HAVE_SYSLOG_R)
if(HAVE_SYSLOG_R)
	add_definitions(-DHAVE_SYSLOG_R)
endif()

# XXX - needs _GNU_SOURCE on linux
check_function_exists(syslog HAVE_SYSLOG)
if(HAVE_SYSLOG)
	add_definitions(-DHAVE_SYSLOG)
endif()

check_symbol_exists(timespecsub sys/time.h HAVE_TIMESPECSUB)
if(HAVE_TIMESPECSUB)
	add_definitions(-DHAVE_TIMESPECSUB)
endif()

check_symbol_exists(timingsafe_bcmp "string.h" HAVE_TIMINGSAFE_BCMP)
if(HAVE_TIMINGSAFE_BCMP)
	add_definitions(-DHAVE_TIMINGSAFE_BCMP)
endif()

check_symbol_exists(timingsafe_memcmp "string.h" HAVE_TIMINGSAFE_MEMCMP)
if(HAVE_TIMINGSAFE_MEMCMP)
	add_definitions(-DHAVE_TIMINGSAFE_MEMCMP)
endif()

# XXX - needs _GNU_SOURCE on linux
check_function_exists(memmem HAVE_MEMMEM)
if(HAVE_MEMMEM)
	add_definitions(-DHAVE_MEMMEM)
endif()

check_include_files(endian.h HAVE_ENDIAN_H)
if(HAVE_ENDIAN_H)
	add_definitions(-DHAVE_ENDIAN_H)
endif()

check_include_files(machine/endian.h HAVE_MACHINE_ENDIAN_H)
if(HAVE_MACHINE_ENDIAN_H)
	add_definitions(-DHAVE_MACHINE_ENDIAN_H)
endif()

check_include_files(err.h HAVE_ERR_H)
if(HAVE_ERR_H)
	add_definitions(-DHAVE_ERR_H)
endif()

check_include_files("sys/types.h;arpa/inet.h;netinet/ip.h" HAVE_NETINET_IP_H)
if(HAVE_NETINET_IP_H)
	add_definitions(-DHAVE_NETINET_IP_H)
endif()

# This isn't ready for universal binaries yet, since we do conditional
# compilation based on the architecture, but this makes cross compiling for a
# single architecture work on macOS at least.
#
# Don't set CMAKE_OSX_ARCHITECTURES to more than a single value for now.
if(APPLE AND (NOT CMAKE_OSX_ARCHITECTURES STREQUAL ""))
	set(CMAKE_SYSTEM_PROCESSOR "${CMAKE_OSX_ARCHITECTURES}")
endif()

if(CMAKE_SYSTEM_PROCESSOR MATCHES "(aarch64|arm64|ARM64)")
	set(HOST_AARCH64 true)
	if(WIN32)
		set(ENABLE_ASM false)
	endif()
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm")
	set(HOST_ARM true)
elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND CMAKE_SYSTEM_PROCESSOR MATCHES "i386")
	set(HOST_X86_64 true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64|amd64|AMD64)")
	set(HOST_X86_64 true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(i[3-6]86|[xX]86)")
	set(ENABLE_ASM false)
	set(HOST_I386 true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "loongarch64")
	set(HOST_LOONGARCH64 true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "mips64")
	set(HOST_MIPS64 true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "mips")
	set(HOST_MIPS true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "powerpc")
	set(HOST_POWERPC true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64")
	set(HOST_POWERPC64 true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "riscv64")
	set(HOST_RISCV64 true)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "sparc64")
	set(HOST_SPARC64 true)
else()
	set(ENABLE_ASM false)
endif()

if(ENABLE_ASM)
	if(CMAKE_C_COMPILER_ABI STREQUAL "ELF")
		if(HOST_X86_64)
			set(HOST_ASM_ELF_X86_64 true)
		elseif(HOST_ARM)
			set(HOST_ASM_ELF_ARMV4 true)
		elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS" AND HOST_I386)
			set(HOST_ASM_ELF_X86_64 true)
		endif()
		add_definitions(-DHAVE_GNU_STACK)
	elseif(APPLE AND HOST_X86_64)
		set(HOST_ASM_MACOSX_X86_64 true)
	elseif(MSVC AND (CMAKE_GENERATOR MATCHES "Win64" OR CMAKE_GENERATOR_PLATFORM STREQUAL "x64"))
		set(HOST_ASM_MASM_X86_64 true)
		ENABLE_LANGUAGE(ASM_MASM)
	elseif(MINGW AND HOST_X86_64)
		set(HOST_ASM_MINGW64_X86_64 true)
	endif()
endif()

if(CMAKE_SYSTEM_NAME MATCHES "Linux")
	# Check if we need -lrt to get clock_gettime on Linux
	check_library_exists(rt clock_gettime "time.h" HAVE_CLOCK_GETTIME)
	if (HAVE_CLOCK_GETTIME)
		set(PLATFORM_LIBS ${PLATFORM_LIBS} rt)
	endif()
else()
	# Otherwise, simply check if it exists
	check_function_exists(clock_gettime HAVE_CLOCK_GETTIME)
endif()
if(HAVE_CLOCK_GETTIME)
	add_definitions(-DHAVE_CLOCK_GETTIME)
endif()

check_type_size(time_t SIZEOF_TIME_T)
if(SIZEOF_TIME_T STREQUAL "4")
	set(SMALL_TIME_T true)
	add_definitions(-DSMALL_TIME_T)
	message(WARNING " ** Warning, this system is unable to represent times past 2038\n"
	                " ** It will behave incorrectly when handling valid RFC5280 dates")
endif()

set(OPENSSL_LIBS ssl crypto ${PLATFORM_LIBS})
set(LIBTLS_LIBS tls ${PLATFORM_LIBS})

# libraries for regression test
if(BUILD_SHARED_LIBS)
	set(OPENSSL_TEST_LIBS ssl-static crypto-static ${PLATFORM_LIBS} compat_obj)
	set(LIBTLS_TEST_LIBS tls-static ${OPENSSL_TEST_LIBS} tls_compat_obj)
else()
	set(OPENSSL_TEST_LIBS ssl crypto ${PLATFORM_LIBS} compat_obj)
	set(LIBTLS_TEST_LIBS tls ${PLATFORM_LIBS} compat_obj tls_compat_obj)
endif()

if(OPENSSLDIR STREQUAL "")
	if(WIN32)
		set(OPENSSLDIR "C:/Windows/libressl/ssl")
	else()
		set(OPENSSLDIR "${CMAKE_INSTALL_SYSCONFDIR}/ssl")
	endif()

	set(CONF_DIR "${CMAKE_INSTALL_SYSCONFDIR}/ssl")
else()
	set(CONF_DIR "${OPENSSLDIR}")
endif()

add_subdirectory(include)
add_subdirectory(crypto)
add_subdirectory(ssl)
if(LIBRESSL_APPS)
	add_subdirectory(apps)
endif()
add_subdirectory(tls)
if(NOT MSVC)
	add_subdirectory(man)
endif()
# Tests require the openssl executable and are unavailable when building shared libraries
if(LIBRESSL_APPS AND LIBRESSL_TESTS)
	add_subdirectory(tests)
endif()

if (BUILD_APPLE_XCFRAMEWORK)
	# Create the super library from object libraries
	add_library(LibreSSL_xcframework
			$<TARGET_OBJECTS:crypto_obj> $<TARGET_OBJECTS:tls_obj> $<TARGET_OBJECTS:ssl_obj>)
	set_target_properties(LibreSSL_xcframework PROPERTIES
			OUTPUT_NAME ressl)

	if(ENABLE_LIBRESSL_INSTALL)
		install(TARGETS LibreSSL_xcframework
				LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
	endif(ENABLE_LIBRESSL_INSTALL)
endif(BUILD_APPLE_XCFRAMEWORK)

file(STRINGS "VERSION" VERSION LIMIT_COUNT 1)
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
	"LibreSSLConfigVersion.cmake"
	VERSION "${VERSION}"
	COMPATIBILITY SameMajorVersion
)

set(INCLUDE_DIRECTORY "${CMAKE_BINARY_DIR}/include")
configure_package_config_file(
  "${CMAKE_CURRENT_LIST_DIR}/LibreSSLConfig.cmake.in"
  "${CMAKE_CURRENT_BINARY_DIR}/LibreSSLConfig.cmake"
	PATH_VARS INCLUDE_DIRECTORY
  INSTALL_DESTINATION "${CMAKE_CURRENT_BINARY_DIR}"
	INSTALL_PREFIX "${CMAKE_CURRENT_BINARY_DIR}"
)

if(ENABLE_LIBRESSL_INSTALL)
	set(INCLUDE_DIRECTORY "${CMAKE_INSTALL_INCLUDEDIR}")
	configure_package_config_file(
  	"${CMAKE_CURRENT_LIST_DIR}/LibreSSLConfig.cmake.in"
  	"${CMAKE_CURRENT_BINARY_DIR}/install-config/LibreSSLConfig.cmake"
		PATH_VARS INCLUDE_DIRECTORY
  	INSTALL_DESTINATION "${LIBRESSL_INSTALL_CMAKEDIR}"
	)
	install(FILES
		"${CMAKE_CURRENT_BINARY_DIR}/install-config/LibreSSLConfig.cmake"
		"${CMAKE_CURRENT_BINARY_DIR}/LibreSSLConfigVersion.cmake"
		DESTINATION "${LIBRESSL_INSTALL_CMAKEDIR}"
	)

	if(NOT MSVC)
		# Create pkgconfig files.
		set(prefix      ${CMAKE_INSTALL_PREFIX})
		set(exec_prefix \${prefix})
		set(libdir      \${exec_prefix}/${CMAKE_INSTALL_LIBDIR})
		set(includedir  \${prefix}/${CMAKE_INSTALL_INCLUDEDIR})
		if(PLATFORM_LIBS)
			string(REGEX REPLACE ";" " -l" PLATFORM_LDADD ";${PLATFORM_LIBS}")
		endif()
		file(GLOB       OPENSSL_PKGCONFIGS "*.pc.in")
		foreach(file ${OPENSSL_PKGCONFIGS})
			get_filename_component(filename ${file} NAME)
			string(REPLACE ".in" "" new_file "${filename}")
			configure_file(${filename} pkgconfig/${new_file} @ONLY)
		endforeach()
		install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/pkgconfig
			DESTINATION ${CMAKE_INSTALL_LIBDIR})
	endif()

	install(FILES cert.pem openssl.cnf x509v3.cnf DESTINATION ${CONF_DIR})
	install(DIRECTORY DESTINATION ${CONF_DIR}/certs)

 	if(NOT TARGET uninstall)
		configure_file(
			"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
			"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
			IMMEDIATE @ONLY)

		add_custom_target(uninstall
			COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
	endif()
endif()