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307 lines
9.2 KiB
CMake
307 lines
9.2 KiB
CMake
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# - Try to find the OpenSSL encryption library
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# Once done this will define
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#
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# OPENSSL_ROOT_DIR - Set this variable to the root installation of OpenSSL
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#
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# Read-Only variables:
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# OPENSSL_FOUND - system has the OpenSSL library
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# OPENSSL_INCLUDE_DIR - the OpenSSL include directory
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# OPENSSL_LIBRARIES - The libraries needed to use OpenSSL
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# OPENSSL_VERSION - This is set to $major.$minor.$revision$path (eg. 0.9.8s)
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#=============================================================================
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# Copyright 2006-2009 Kitware, Inc.
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# Copyright 2006 Alexander Neundorf <neundorf@kde.org>
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# Copyright 2009-2011 Mathieu Malaterre <mathieu.malaterre@gmail.com>
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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if (UNIX)
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find_package(PkgConfig QUIET)
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pkg_check_modules(_OPENSSL QUIET openssl)
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endif (UNIX)
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# http://www.slproweb.com/products/Win32OpenSSL.html
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SET(_OPENSSL_ROOT_HINTS
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$ENV{OPENSSL_ROOT_DIR}
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${OPENSSL_ROOT_DIR}
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\OpenSSL (32-bit)_is1;Inno Setup: App Path]"
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"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\OpenSSL (64-bit)_is1;Inno Setup: App Path]"
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)
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SET(_OPENSSL_ROOT_PATHS
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"$ENV{PROGRAMFILES}/OpenSSL"
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"$ENV{PROGRAMFILES}/OpenSSL-Win32"
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"$ENV{PROGRAMFILES}/OpenSSL-Win64"
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"C:/OpenSSL/"
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"C:/OpenSSL-Win32/"
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"C:/OpenSSL-Win64/"
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)
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SET(_OPENSSL_ROOT_HINTS_AND_PATHS
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HINTS ${_OPENSSL_ROOT_HINTS}
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PATHS ${_OPENSSL_ROOT_PATHS}
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)
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FIND_PATH(OPENSSL_INCLUDE_DIR
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NAMES
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openssl/ssl.h
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HINTS
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${_OPENSSL_INCLUDEDIR}
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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include
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)
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IF(WIN32 AND NOT CYGWIN)
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# MINGW should go here too
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IF(MSVC)
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# /MD and /MDd are the standard values - if someone wants to use
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# others, the libnames have to change here too
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# use also ssl and ssleay32 in debug as fallback for openssl < 0.9.8b
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# TODO: handle /MT and static lib
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# In Visual C++ naming convention each of these four kinds of Windows libraries has it's standard suffix:
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# * MD for dynamic-release
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# * MDd for dynamic-debug
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# * MT for static-release
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# * MTd for static-debug
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# Implementation details:
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# We are using the libraries located in the VC subdir instead of the parent directory eventhough :
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# libeay32MD.lib is identical to ../libeay32.lib, and
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# ssleay32MD.lib is identical to ../ssleay32.lib
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FIND_LIBRARY(LIB_EAY_DEBUG
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NAMES
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libeay32MDd
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libeay32
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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"lib"
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"VC"
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"lib/VC"
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)
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FIND_LIBRARY(LIB_EAY_RELEASE
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NAMES
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libeay32MD
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libeay32
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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"lib"
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"VC"
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"lib/VC"
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)
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FIND_LIBRARY(SSL_EAY_DEBUG
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NAMES
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ssleay32MDd
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ssleay32
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ssl
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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"lib"
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"VC"
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"lib/VC"
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)
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FIND_LIBRARY(SSL_EAY_RELEASE
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NAMES
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ssleay32MD
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ssleay32
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ssl
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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"lib"
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"VC"
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"lib/VC"
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)
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if( CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE )
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set( OPENSSL_LIBRARIES
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optimized ${SSL_EAY_RELEASE} debug ${SSL_EAY_DEBUG}
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optimized ${LIB_EAY_RELEASE} debug ${LIB_EAY_DEBUG}
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)
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else()
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set( OPENSSL_LIBRARIES ${SSL_EAY_RELEASE} ${LIB_EAY_RELEASE} )
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endif()
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MARK_AS_ADVANCED(SSL_EAY_DEBUG SSL_EAY_RELEASE)
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MARK_AS_ADVANCED(LIB_EAY_DEBUG LIB_EAY_RELEASE)
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ELSEIF(MINGW)
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# same player, for MingW
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FIND_LIBRARY(LIB_EAY
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NAMES
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libeay32
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crypto
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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"lib"
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"lib/MinGW"
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)
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FIND_LIBRARY(SSL_EAY
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NAMES
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ssleay32
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ssl
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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"lib"
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"lib/MinGW"
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)
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MARK_AS_ADVANCED(SSL_EAY LIB_EAY)
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set( OPENSSL_LIBRARIES ${SSL_EAY} ${LIB_EAY} )
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ELSE(MSVC)
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# Not sure what to pick for -say- intel, let's use the toplevel ones and hope someone report issues:
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FIND_LIBRARY(LIB_EAY
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NAMES
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libeay32
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HINTS
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${_OPENSSL_LIBDIR}
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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lib
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)
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FIND_LIBRARY(SSL_EAY
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NAMES
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ssleay32
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HINTS
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${_OPENSSL_LIBDIR}
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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lib
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)
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MARK_AS_ADVANCED(SSL_EAY LIB_EAY)
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set( OPENSSL_LIBRARIES ${SSL_EAY} ${LIB_EAY} )
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ENDIF(MSVC)
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ELSE(WIN32 AND NOT CYGWIN)
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FIND_LIBRARY(OPENSSL_SSL_LIBRARY
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NAMES
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ssl
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ssleay32
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ssleay32MD
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HINTS
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${_OPENSSL_LIBDIR}
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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lib
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)
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FIND_LIBRARY(OPENSSL_CRYPTO_LIBRARY
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NAMES
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crypto
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HINTS
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${_OPENSSL_LIBDIR}
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${_OPENSSL_ROOT_HINTS_AND_PATHS}
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PATH_SUFFIXES
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lib
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)
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MARK_AS_ADVANCED(OPENSSL_CRYPTO_LIBRARY OPENSSL_SSL_LIBRARY)
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# compat defines
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SET(OPENSSL_SSL_LIBRARIES ${OPENSSL_SSL_LIBRARY})
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SET(OPENSSL_CRYPTO_LIBRARIES ${OPENSSL_CRYPTO_LIBRARY})
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SET(OPENSSL_LIBRARIES ${OPENSSL_SSL_LIBRARY} ${OPENSSL_CRYPTO_LIBRARY})
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ENDIF(WIN32 AND NOT CYGWIN)
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function(from_hex HEX DEC)
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string(TOUPPER "${HEX}" HEX)
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set(_res 0)
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string(LENGTH "${HEX}" _strlen)
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while (_strlen GREATER 0)
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math(EXPR _res "${_res} * 16")
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string(SUBSTRING "${HEX}" 0 1 NIBBLE)
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string(SUBSTRING "${HEX}" 1 -1 HEX)
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if (NIBBLE STREQUAL "A")
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math(EXPR _res "${_res} + 10")
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elseif (NIBBLE STREQUAL "B")
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math(EXPR _res "${_res} + 11")
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elseif (NIBBLE STREQUAL "C")
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math(EXPR _res "${_res} + 12")
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elseif (NIBBLE STREQUAL "D")
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math(EXPR _res "${_res} + 13")
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elseif (NIBBLE STREQUAL "E")
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math(EXPR _res "${_res} + 14")
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elseif (NIBBLE STREQUAL "F")
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math(EXPR _res "${_res} + 15")
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else()
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math(EXPR _res "${_res} + ${NIBBLE}")
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endif()
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string(LENGTH "${HEX}" _strlen)
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endwhile()
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set(${DEC} ${_res} PARENT_SCOPE)
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endfunction(from_hex)
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if (OPENSSL_INCLUDE_DIR)
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if (_OPENSSL_VERSION)
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set(OPENSSL_VERSION "${_OPENSSL_VERSION}")
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elseif(OPENSSL_INCLUDE_DIR AND EXISTS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h")
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file(STRINGS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h" openssl_version_str
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REGEX "^#define[\t ]+OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-fA-F])+.*")
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# The version number is encoded as 0xMNNFFPPS: major minor fix patch status
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# The status gives if this is a developer or prerelease and is ignored here.
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# Major, minor, and fix directly translate into the version numbers shown in
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# the string. The patch field translates to the single character suffix that
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# indicates the bug fix state, which 00 -> nothing, 01 -> a, 02 -> b and so
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# on.
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string(REGEX REPLACE "^.*OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F]).*$"
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"\\1;\\2;\\3;\\4;\\5" OPENSSL_VERSION_LIST "${openssl_version_str}")
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list(GET OPENSSL_VERSION_LIST 0 OPENSSL_VERSION_MAJOR)
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list(GET OPENSSL_VERSION_LIST 1 OPENSSL_VERSION_MINOR)
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from_hex("${OPENSSL_VERSION_MINOR}" OPENSSL_VERSION_MINOR)
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list(GET OPENSSL_VERSION_LIST 2 OPENSSL_VERSION_FIX)
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from_hex("${OPENSSL_VERSION_FIX}" OPENSSL_VERSION_FIX)
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list(GET OPENSSL_VERSION_LIST 3 OPENSSL_VERSION_PATCH)
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if (NOT OPENSSL_VERSION_PATCH STREQUAL "00")
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from_hex("${OPENSSL_VERSION_PATCH}" _tmp)
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# 96 is the ASCII code of 'a' minus 1
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math(EXPR OPENSSL_VERSION_PATCH_ASCII "${_tmp} + 96")
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unset(_tmp)
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# Once anyone knows how OpenSSL would call the patch versions beyond 'z'
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# this should be updated to handle that, too. This has not happened yet
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# so it is simply ignored here for now.
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string(ASCII "${OPENSSL_VERSION_PATCH_ASCII}" OPENSSL_VERSION_PATCH_STRING)
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endif (NOT OPENSSL_VERSION_PATCH STREQUAL "00")
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set(OPENSSL_VERSION "${OPENSSL_VERSION_MAJOR}.${OPENSSL_VERSION_MINOR}.${OPENSSL_VERSION_FIX}${OPENSSL_VERSION_PATCH_STRING}")
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endif (_OPENSSL_VERSION)
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endif (OPENSSL_INCLUDE_DIR)
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include(FindPackageHandleStandardArgs)
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if (OPENSSL_VERSION)
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find_package_handle_standard_args(OpenSSL
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REQUIRED_VARS
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|
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OPENSSL_LIBRARIES
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OPENSSL_INCLUDE_DIR
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VERSION_VAR
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OPENSSL_VERSION
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FAIL_MESSAGE
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"Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR"
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)
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else (OPENSSL_VERSION)
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find_package_handle_standard_args(OpenSSL "Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the system variable OPENSSL_ROOT_DIR"
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OPENSSL_LIBRARIES
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OPENSSL_INCLUDE_DIR
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)
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endif (OPENSSL_VERSION)
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MARK_AS_ADVANCED(OPENSSL_INCLUDE_DIR OPENSSL_LIBRARIES)
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