skyfire/cmake/macros/FindOpenSSL.cmake
AlterEgo bd5175cfcd Fix OpenSSL lookup for Clang builds
Signed-off-by: AlterEgo <admin@projectskyfire.org>
2026-07-04 12:49:45 -05:00

326 lines
9.2 KiB
CMake

#
# This file is part of Project SkyFire https://www.projectskyfire.org.
# See COPYRIGHT file for Copyright information
#
# - Try to find the OpenSSL encryption library
# Once done this will define
#
# OPENSSL_ROOT_DIR - Set this variable to the root installation of OpenSSL
#
# Read-Only variables:
# OPENSSL_FOUND - system has the OpenSSL library
# OPENSSL_INCLUDE_DIR - the OpenSSL include directory
# OPENSSL_LIBRARIES - The libraries needed to use OpenSSL
#=============================================================================
# Copyright 2006-2009 Kitware, Inc.
# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
# Copyright 2009-2010 Mathieu Malaterre <mathieu.malaterre@gmail.com>
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distributed this file outside of CMake, substitute the full
# License text for the above reference.)
# http://www.slproweb.com/products/Win32OpenSSL.html
set(_OPENSSL_ROOT_HINTS)
if(OPENSSL_ROOT_DIR)
list(APPEND _OPENSSL_ROOT_HINTS ${OPENSSL_ROOT_DIR})
endif()
if(DEFINED ENV{OPENSSL_ROOT_DIR})
list(APPEND _OPENSSL_ROOT_HINTS $ENV{OPENSSL_ROOT_DIR})
endif()
SET(_OPENSSL_ROOT_PATHS
${_OPENSSL_ROOT_HINTS}
"C:/OpenSSL-Win64/"
"C:/Program Files/OpenSSL-Win64/"
"C:/OpenSSL/"
"C:/Program Files/OpenSSL/"
)
FIND_PATH(OPENSSL_ROOT_DIR
NAMES
include/openssl/ssl.h
HINTS
${_OPENSSL_ROOT_HINTS}
PATHS
${_OPENSSL_ROOT_PATHS}
)
FIND_PATH(OPENSSL_MODULES_DIR legacy.dll
${OPENSSL_ROOT_DIR}/bin
)
set(_OPENSSL_MODULES_PATHS)
if(DEFINED ENV{OPENSSL_MODULES})
file(TO_CMAKE_PATH "$ENV{OPENSSL_MODULES}" _OPENSSL_MODULES_ENV)
list(APPEND _OPENSSL_MODULES_PATHS ${_OPENSSL_MODULES_ENV})
endif()
if(OPENSSL_MODULES_DIR)
list(APPEND _OPENSSL_MODULES_PATHS ${OPENSSL_MODULES_DIR})
endif()
FIND_FILE(_OPENSSL_LEGACY_PROVIDER_DLL
NAMES
legacy.dll
PATHS
${_OPENSSL_MODULES_PATHS}
NO_DEFAULT_PATH
NO_CACHE
)
set(OPENSSL_LEGACY_PROVIDER_DLL "${_OPENSSL_LEGACY_PROVIDER_DLL}")
MARK_AS_ADVANCED(OPENSSL_ROOT_DIR OPENSSL_MODULES_DIR OPENSSL_LEGACY_PROVIDER_DLL)
# Re-use the previous path:
FIND_PATH(OPENSSL_INCLUDE_DIR openssl/ssl.h
HINTS
${OPENSSL_ROOT_DIR}
PATH_SUFFIXES
include
)
IF(WIN32 AND NOT CYGWIN)
# MINGW should go here too
IF(MSVC)
# /MD and /MDd are the standard values - if someone wants to use
# others, the libnames have to change here too
# use also ssl and ssleay32 in debug as fallback for openssl < 0.9.8b
# TODO: handle /MT and static lib
# In Visual C++ naming convention each of these four kinds of Windows libraries has it's standard suffix:
# * MD for dynamic-release
# * MDd for dynamic-debug
# * MT for static-release
# * MTd for static-debug
# Implementation details:
# We are using the libraries located in the VC subdir instead of the parent directory eventhough :
# libeay32MD.lib is identical to ../libeay32.lib, and
# ssleay32MD.lib is identical to ../ssleay32.lib
FIND_FILE(OPENSSL_CRYPTO_DLL
NAMES
libcrypto-4-x64.dll
libcrypto-3-x64.dll
PATHS
${OPENSSL_MODULES_DIR}
)
FIND_FILE(OPENSSL_SSL_DLL
NAMES
libssl-4-x64.dll
libssl-3-x64.dll
PATHS
${OPENSSL_MODULES_DIR}
)
FIND_LIBRARY(OPENSSL_LIB_LEGACY
NAMES
liblegacy
PATHS
${OPENSSL_ROOT_DIR}/lib/
${OPENSSL_ROOT_DIR}/lib/VC/x64/MD/
)
FIND_LIBRARY(OPENSSL_LIB_CRYPTO_DEBUG
NAMES
libcrypto libcrypto32MDd libcrypto32 libcrypto64MDd libcrypto64
PATHS
${OPENSSL_ROOT_DIR}/lib
${OPENSSL_ROOT_DIR}/lib/VC/x64/MDd/
)
FIND_LIBRARY(OPENSSL_LIB_CRYPTO_RELEASE
NAMES
libcrypto libcrypto32MD libcrypto32 libcrypto64MD libcrypto64
PATHS
${OPENSSL_ROOT_DIR}/lib/
${OPENSSL_ROOT_DIR}/lib/VC/x64/MD/
)
FIND_LIBRARY(OPENSSL_LIB_SSL_DEBUG
NAMES
libssl libssl32MDd libssl32 ssl libssl64MDd libssl64
PATHS
${OPENSSL_ROOT_DIR}/lib/
${OPENSSL_ROOT_DIR}/lib/VC/x64/MDd/
)
FIND_LIBRARY(OPENSSL_LIB_SSL_RELEASE
NAMES
libssl libssl32MD libssl32 ssl libssl libssl64MD libssl64
PATHS
${OPENSSL_ROOT_DIR}/lib/
${OPENSSL_ROOT_DIR}/lib/VC/x64/MD/
)
if( CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE )
set( OPENSSL_LIBRARIES
optimized ${OPENSSL_LIB_LEGACY} ${OPENSSL_LIB_SSL_RELEASE} ${OPENSSL_LIB_CRYPTO_RELEASE}
debug ${OPENSSL_LIB_LEGACY} ${OPENSSL_LIB_SSL_DEBUG} ${OPENSSL_LIB_CRYPTO_DEBUG}
)
else()
set( OPENSSL_LIBRARIES
${OPENSSL_LIB_SSL_RELEASE}
${OPENSSL_LIB_CRYPTO_RELEASE}
)
endif()
IF(DEFINED ENV{OPENSSL_MODULES})
file(TO_CMAKE_PATH "$ENV{OPENSSL_MODULES}" OPENSSL_MODULES)
MESSAGE(STATUS "OpenSSL: Environment variable [OPENSSL_MODULES] is set to: ${OPENSSL_MODULES}")
ELSEIF(OPENSSL_MODULES_DIR)
set(OPENSSL_MODULES ${OPENSSL_MODULES_DIR})
MESSAGE(STATUS "OpenSSL: Using discovered modules directory: ${OPENSSL_MODULES}")
ELSE()
MESSAGE(FATAL_ERROR "SkyFire could not find the OpenSSL modules directory. "
"Set OPENSSL_MODULES to the directory containing legacy.dll.")
ENDIF()
IF(NOT OPENSSL_LEGACY_PROVIDER_DLL)
MESSAGE(FATAL_ERROR "SkyFire could not find the OpenSSL legacy provider DLL. "
"Set OPENSSL_MODULES to the directory containing legacy.dll.")
ENDIF()
MESSAGE(STATUS "Found OpenSSL legacy provider DLL: ${OPENSSL_LEGACY_PROVIDER_DLL}")
MARK_AS_ADVANCED(OPENSSL_LIB_SSL_DEBUG OPENSSL_LIB_SSL_RELEASE OPENSSL_LIB_CRYPTO_DEBUG OPENSSL_LIB_CRYPTO_RELEASE)
ELSEIF(MINGW)
# same player, for MingW
FIND_LIBRARY(OPENSSL_LIB_CRYPTO
NAMES
libcrypto
PATHS
${OPENSSL_ROOT_DIR}/lib/MinGW
)
FIND_LIBRARY(OPENSSL_LIB_SSL NAMES
NAMES
ssleay32
PATHS
${OPENSSL_ROOT_DIR}/lib/MinGW
)
MARK_AS_ADVANCED(OPENSSL_LIB_SSL OPENSSL_LIB_CRYPTO)
set( OPENSSL_LIBRARIES
${OPENSSL_LIB_SSL}
${OPENSSL_LIB_CRYPTO}
)
ELSE(MSVC)
# Not sure what to pick for -say- intel, let's use the toplevel ones and hope someone report issues:
FIND_LIBRARY(OPENSSL_LIB_LEGACY
NAMES
liblegacy
PATHS
${OPENSSL_ROOT_DIR}/lib
${OPENSSL_ROOT_DIR}/lib/VC/x64/MD
)
FIND_LIBRARY(OPENSSL_LIB_CRYPTO
NAMES
libcrypto
PATHS
${OPENSSL_ROOT_DIR}/lib
${OPENSSL_ROOT_DIR}/lib/VC
${OPENSSL_ROOT_DIR}/lib/VC/x64/MD
)
FIND_LIBRARY(OPENSSL_LIB_SSL
NAMES
libssl
PATHS
${OPENSSL_ROOT_DIR}/lib
${OPENSSL_ROOT_DIR}/lib/VC
${OPENSSL_ROOT_DIR}/lib/VC/x64/MD
)
MARK_AS_ADVANCED(OPENSSL_LIB_SSL OPENSSL_LIB_CRYPTO)
SET( OPENSSL_LIBRARIES ${OPENSSL_LIB_LEGACY} ${OPENSSL_LIB_SSL} ${OPENSSL_LIB_CRYPTO} )
ENDIF(MSVC)
ELSE(WIN32 AND NOT CYGWIN)
FIND_LIBRARY(OPENSSL_SSL_LIBRARIES
NAMES ssl ssleay32 ssleay32MD
HINTS
${OPENSSL_ROOT_DIR}
PATH_SUFFIXES
lib
lib64
)
FIND_LIBRARY(OPENSSL_CRYPTO_LIBRARIES
NAMES crypto
HINTS
${OPENSSL_ROOT_DIR}
PATH_SUFFIXES
lib
lib64
)
MARK_AS_ADVANCED(OPENSSL_CRYPTO_LIBRARIES OPENSSL_SSL_LIBRARIES)
SET(OPENSSL_LIBRARIES ${OPENSSL_SSL_LIBRARIES} ${OPENSSL_CRYPTO_LIBRARIES})
ENDIF(WIN32 AND NOT CYGWIN)
IF (UNIX)
FIND_FILE(OPENSSL_LIB_LEGACY
NAMES
legacy.so
PATHS
${OPENSSL_ROOT_DIR}/lib/ossl-modules/
${OPENSSL_ROOT_DIR}/lib64/ossl-modules/
${OPENSSL_ROOT_DIR}/lib/x86_64-linux-gnu/ossl-modules/
)
ENDIF()
IF (OPENSSL_LIB_LEGACY)
message( STATUS "Found OpenSSL legacy library: ${OPENSSL_LIB_LEGACY}")
ELSE()
message( FATAL_ERROR "Found OpenSSL legacy library: ${OPENSSL_LIB_LEGACY}")
ENDIF()
if (NOT OPENSSL_INCLUDE_DIR)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OpenSSL DEFAULT_MSG
OPENSSL_LIB_LEGACY
OPENSSL_LIBRARIES
OPENSSL_INCLUDE_DIR
)
endif()
if (OPENSSL_INCLUDE_DIR)
message( STATUS "Found OpenSSL library: ${OPENSSL_LIBRARIES}")
message( STATUS "Found OpenSSL headers: ${OPENSSL_INCLUDE_DIR}")
if (_OPENSSL_VERSION)
set(OPENSSL_VERSION "${_OPENSSL_VERSION}")
else (_OPENSSL_VERSION)
file(STRINGS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h" OPENSSL_VERSION_STR
REGEX "^#[\t ]*define[\t ]+OPENSSL_VERSION_STR[\t ]+\"([0-9])+\\.([0-9])+\\.([0-9])+\".*")
string(REGEX REPLACE "^.*OPENSSL_VERSION_STR[\t ]+\"([0-9]+\\.[0-9]+\\.[0-9]+)\".*$"
"\\1" OPENSSL_VERSION_STR "${OPENSSL_VERSION_STR}")
set(OPENSSL_VERSION "${OPENSSL_VERSION_STR}")
endif (_OPENSSL_VERSION)
include(EnsureVersion)
ENSURE_VERSION( "${OPENSSL_EXPECTED_VERSION}" "${OPENSSL_VERSION}" OPENSSL_VERSION_OK)
if (NOT OPENSSL_VERSION_OK)
message(FATAL_ERROR "SkyFire needs OpenSSL version ${OPENSSL_EXPECTED_VERSION} but found version ${OPENSSL_VERSION}")
endif()
endif (OPENSSL_INCLUDE_DIR)
MARK_AS_ADVANCED(OPENSSL_INCLUDE_DIR OPENSSL_LIBRARIES)