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Nextcloud-Desktop/cmake/modules/FindLibSSH.cmake
2014-01-13 14:39:50 +01:00

97 lines
3.1 KiB
CMake

# - Try to find LibSSH
# Once done this will define
#
# LIBSSH_FOUND - system has LibSSH
# LIBSSH_INCLUDE_DIRS - the LibSSH include directory
# LIBSSH_LIBRARIES - Link these to use LibSSH
# LIBSSH_DEFINITIONS - Compiler switches required for using LibSSH
#
# Copyright (c) 2009 Andreas Schneider <asn@cryptomilk.org>
#
# Redistribution and use is allowed according to the terms of the New
# BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
#
if (LIBSSH_LIBRARIES AND LIBSSH_INCLUDE_DIRS)
# in cache already
set(LIBSSH_FOUND TRUE)
else (LIBSSH_LIBRARIES AND LIBSSH_INCLUDE_DIRS)
find_path(LIBSSH_INCLUDE_DIR
NAMES
libssh/libssh.h
PATHS
/usr/include
/usr/local/include
/opt/local/include
/sw/include
${CMAKE_INCLUDE_PATH}
${CMAKE_INSTALL_PREFIX}/include
)
find_library(SSH_LIBRARY
NAMES
ssh
libssh
PATHS
/usr/lib
/usr/local/lib
/opt/local/lib
/sw/lib
${CMAKE_LIBRARY_PATH}
${CMAKE_INSTALL_PREFIX}/lib
)
if (LIBSSH_INCLUDE_DIR AND SSH_LIBRARY)
set(SSH_FOUND TRUE)
endif (LIBSSH_INCLUDE_DIR AND SSH_LIBRARY)
set(LIBSSH_INCLUDE_DIRS
${LIBSSH_INCLUDE_DIR}
)
if (SSH_FOUND)
set(LIBSSH_LIBRARIES
${LIBSSH_LIBRARIES}
${SSH_LIBRARY}
)
if (LibSSH_FIND_VERSION)
file(STRINGS ${LIBSSH_INCLUDE_DIR}/libssh/libssh.h LIBSSH_VERSION_MAJOR
REGEX "#define[ ]+LIBSSH_VERSION_MAJOR[ ]+[0-9]+")
# Older versions of libssh like libssh-0.2 have LIBSSH_VERSION but not LIBSSH_VERSION_MAJOR
if (LIBSSH_VERSION_MAJOR)
string(REGEX MATCH "[0-9]+" LIBSSH_VERSION_MAJOR ${LIBSSH_VERSION_MAJOR})
file(STRINGS ${LIBSSH_INCLUDE_DIR}/libssh/libssh.h LIBSSH_VERSION_MINOR
REGEX "#define[ ]+LIBSSH_VERSION_MINOR[ ]+[0-9]+")
string(REGEX MATCH "[0-9]+" LIBSSH_VERSION_MINOR ${LIBSSH_VERSION_MINOR})
file(STRINGS ${LIBSSH_INCLUDE_DIR}/libssh/libssh.h LIBSSH_VERSION_PATCH
REGEX "#define[ ]+LIBSSH_VERSION_MICRO[ ]+[0-9]+")
string(REGEX MATCH "[0-9]+" LIBSSH_VERSION_PATCH ${LIBSSH_VERSION_PATCH})
set(LibSSH_VERSION ${LIBSSH_VERSION_MAJOR}.${LIBSSH_VERSION_MINOR}.${LIBSSH_VERSION_PATCH})
include(FindPackageVersionCheck)
find_package_version_check(LibSSH DEFAULT_MSG)
else (LIBSSH_VERSION_MAJOR)
message(STATUS "LIBSSH_VERSION_MAJOR not found in ${LIBSSH_INCLUDE_DIR}/libssh/libssh.h, assuming libssh is too old")
set(LIBSSH_FOUND FALSE)
endif (LIBSSH_VERSION_MAJOR)
endif (LibSSH_FIND_VERSION)
endif (SSH_FOUND)
# If the version is too old, but libs and includes are set,
# find_package_handle_standard_args will set LIBSSH_FOUND to TRUE again,
# so we need this if() here.
if (LIBSSH_FOUND)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(LibSSH DEFAULT_MSG LIBSSH_LIBRARIES LIBSSH_INCLUDE_DIRS)
endif (LIBSSH_FOUND)
# show the LIBSSH_INCLUDE_DIRS and LIBSSH_LIBRARIES variables only in the advanced view
mark_as_advanced(LIBSSH_INCLUDE_DIRS LIBSSH_LIBRARIES)
endif (LIBSSH_LIBRARIES AND LIBSSH_INCLUDE_DIRS)