117 lines
4.6 KiB
CMake
117 lines
4.6 KiB
CMake
# - Try to find LibSSH
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# Once done this will define
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#
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# LIBSSH_FOUND - system has LibSSH
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# LIBSSH_INCLUDE_DIRS - the LibSSH include directory
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# LIBSSH_LIBRARIES - link these to use LibSSH
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# LIBSSH_VERSION -
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#
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# Author Michal Vasko <mvasko@cesnet.cz>
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# Copyright (c) 2020 CESNET, z.s.p.o.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# 1. Redistributions of source code must retain the copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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include(FindPackageHandleStandardArgs)
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if(LIBSSH_LIBRARIES AND LIBSSH_INCLUDE_DIRS)
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# in cache already
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set(LIBSSH_FOUND TRUE)
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else()
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find_path(LIBSSH_INCLUDE_DIR
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NAMES
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libssh/libssh.h
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PATHS
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/usr/include
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/usr/local/include
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/opt/local/include
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/sw/include
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${CMAKE_INCLUDE_PATH}
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${CMAKE_INSTALL_PREFIX}/include
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)
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find_library(LIBSSH_LIBRARY
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NAMES
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ssh.so
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libssh.so
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libssh.dylib
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PATHS
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/usr/lib
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/usr/local/lib
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/opt/local/lib
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/sw/lib
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${CMAKE_LIBRARY_PATH}
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${CMAKE_INSTALL_PREFIX}/lib
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)
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if(LIBSSH_INCLUDE_DIR AND LIBSSH_LIBRARY)
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# learn libssh version
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if(EXISTS ${LIBSSH_INCLUDE_DIR}/libssh/libssh_version.h)
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set(LIBSSH_HEADER_PATH ${LIBSSH_INCLUDE_DIR}/libssh/libssh_version.h)
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else()
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set(LIBSSH_HEADER_PATH ${LIBSSH_INCLUDE_DIR}/libssh/libssh.h)
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endif()
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file(STRINGS ${LIBSSH_HEADER_PATH} LIBSSH_VERSION_MAJOR
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REGEX "#define[ ]+LIBSSH_VERSION_MAJOR[ ]+[0-9]+")
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if(NOT LIBSSH_VERSION_MAJOR)
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message(STATUS "LIBSSH_VERSION_MAJOR not found, assuming libssh is too old and cannot be used!")
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set(LIBSSH_INCLUDE_DIR "LIBSSH_INCLUDE_DIR-NOTFOUND")
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set(LIBSSH_LIBRARY "LIBSSH_LIBRARY-NOTFOUND")
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else()
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string(REGEX MATCH "[0-9]+" LIBSSH_VERSION_MAJOR ${LIBSSH_VERSION_MAJOR})
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file(STRINGS ${LIBSSH_HEADER_PATH} LIBSSH_VERSION_MINOR
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REGEX "#define[ ]+LIBSSH_VERSION_MINOR[ ]+[0-9]+")
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string(REGEX MATCH "[0-9]+" LIBSSH_VERSION_MINOR ${LIBSSH_VERSION_MINOR})
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file(STRINGS ${LIBSSH_HEADER_PATH} LIBSSH_VERSION_PATCH
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REGEX "#define[ ]+LIBSSH_VERSION_MICRO[ ]+[0-9]+")
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string(REGEX MATCH "[0-9]+" LIBSSH_VERSION_PATCH ${LIBSSH_VERSION_PATCH})
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set(LIBSSH_VERSION ${LIBSSH_VERSION_MAJOR}.${LIBSSH_VERSION_MINOR}.${LIBSSH_VERSION_PATCH})
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if(LIBSSH_VERSION VERSION_LESS 0.8.0)
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# libssh_threads also needs to be linked for these versions
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string(REPLACE "libssh.so" "libssh_threads.so"
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LIBSSH_THREADS_LIBRARY
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${LIBSSH_LIBRARY}
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)
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string(REPLACE "libssh.dylib" "libssh_threads.dylib"
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LIBSSH_THREADS_LIBRARY
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${LIBSSH_THREADS_LIBRARY}
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)
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string(REPLACE "ssh.so" "ssh_threads.so"
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LIBSSH_THREADS_LIBRARY
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${LIBSSH_THREADS_LIBRARY}
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)
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endif()
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endif()
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endif()
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set(LIBSSH_INCLUDE_DIRS ${LIBSSH_INCLUDE_DIR})
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set(LIBSSH_LIBRARIES ${LIBSSH_LIBRARY} ${LIBSSH_THREADS_LIBRARY})
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mark_as_advanced(LIBSSH_INCLUDE_DIRS LIBSSH_LIBRARIES)
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find_package_handle_standard_args(LibSSH FOUND_VAR LIBSSH_FOUND
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REQUIRED_VARS LIBSSH_INCLUDE_DIRS LIBSSH_LIBRARIES
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VERSION_VAR LIBSSH_VERSION)
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endif()
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