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# Copyright (C) Alexander Lamaison <alexander.lamaison@gmail.com>
# Copyright (C) Viktor Szakats
#
# Redistribution and use in source and binary forms,
# with or without modification, are permitted provided
# that the following conditions are met:
#
# Redistributions of source code must retain the above
# copyright notice, this list of conditions and the
# following disclaimer.
#
# Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials
# provided with the distribution.
#
# Neither the name of the copyright holder nor the names
# of any other contributors may be used to endorse or
# promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
# OF SUCH DAMAGE.
#
# SPDX-License-Identifier: BSD-3-Clause
set(_libssh2_soversion 1)
set(_libssh2_libversion 1.0.1)
if(CRYPTO_BACKEND)
add_feature_info("Crypto backend" ON "${CRYPTO_BACKEND}")
else()
message(FATAL_ERROR "No suitable cryptography backend found.")
endif()
## Options
set(_libssh2_definitions "")
option(CLEAR_MEMORY "Enable clearing of memory before being freed" ON)
if(NOT CLEAR_MEMORY)
list(APPEND _libssh2_definitions "LIBSSH2_NO_CLEAR_MEMORY")
endif()
option(ENABLE_ZLIB_COMPRESSION "Use zlib for compression" OFF)
add_feature_info("Compression" ENABLE_ZLIB_COMPRESSION "using zlib for compression")
if(ENABLE_ZLIB_COMPRESSION)
find_package(ZLIB REQUIRED)
list(APPEND LIBSSH2_LIBS ZLIB::ZLIB)
list(APPEND _libssh2_definitions "LIBSSH2_HAVE_ZLIB")
endif()
list(APPEND LIBSSH2_LIBS ${LIBSSH2_LIBS_SOCKET})
if(MSVC)
set_property(DIRECTORY APPEND PROPERTY COMPILE_OPTIONS "$<$<CONFIG:Debug>:-Zi>")
set_property(DIRECTORY APPEND PROPERTY COMPILE_OPTIONS "$<$<CONFIG:Debug>:-Od>")
set_property(DIRECTORY APPEND PROPERTY LINK_OPTIONS "$<$<CONFIG:Debug>:-DEBUG>")
endif()
## Sources
include(GNUInstallDirs)
libssh2_transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
# Get CSOURCES, HHEADERS, EXTRA_DIST variables
include("${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
set(_sources ${CSOURCES} ${HHEADERS})
## Library definition
if(NOT DEFINED IMPORT_LIB_SUFFIX)
set(IMPORT_LIB_SUFFIX "")
endif()
if(NOT DEFINED STATIC_LIB_SUFFIX)
set(STATIC_LIB_SUFFIX "")
endif()
# Ensure that the static library and import library filenames are different,
# when building both static and shared library. On Windows, with certain
# toolchains (e.g. MSVC) these libraries get the same by default, overwriting
# each other. MinGW is not affected.
if(WIN32 AND (BUILD_STATIC_LIBS OR BUILD_STATIC_FOR_TESTS) AND BUILD_SHARED_LIBS AND
NOT STATIC_LIB_SUFFIX AND NOT IMPORT_LIB_SUFFIX AND
CMAKE_STATIC_LIBRARY_SUFFIX STREQUAL CMAKE_IMPORT_LIBRARY_SUFFIX)
set(STATIC_LIB_SUFFIX "_static")
endif()
set(_libssh2_export "")
# we want it to be called libssh2 on all platforms
if(BUILD_STATIC_LIBS OR BUILD_STATIC_FOR_TESTS)
if(NOT BUILD_STATIC_FOR_TESTS)
list(APPEND _libssh2_export ${LIB_STATIC})
endif()
add_library(${LIB_STATIC} STATIC ${_sources})
add_library(${PROJECT_NAME}::${LIB_STATIC} ALIAS ${LIB_STATIC})
target_compile_definitions(${LIB_STATIC} PRIVATE ${CRYPTO_BACKEND_DEFINE} ${_libssh2_definitions})
set_property(TARGET ${LIB_STATIC} APPEND PROPERTY COMPILE_OPTIONS "${LIBSSH2_PICKY_C_FLAGS}")
target_link_libraries(${LIB_STATIC} PRIVATE ${LIBSSH2_LIBS})
set_target_properties(${LIB_STATIC} PROPERTIES
PREFIX "" OUTPUT_NAME "libssh2" SOVERSION "${_libssh2_soversion}" VERSION "${_libssh2_libversion}"
SUFFIX "${STATIC_LIB_SUFFIX}${CMAKE_STATIC_LIBRARY_SUFFIX}"
INTERFACE_COMPILE_DEFINITIONS "LIBSSH2_API=")
target_include_directories(${LIB_STATIC}
PRIVATE
"${CMAKE_CURRENT_BINARY_DIR}" # to find generated header
"${PROJECT_SOURCE_DIR}/include"
PUBLIC
"$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>"
"$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
endif()
if(BUILD_SHARED_LIBS)
list(APPEND _libssh2_export ${LIB_SHARED})
add_library(${LIB_SHARED} SHARED ${_sources})
add_library(${PROJECT_NAME}::${LIB_SHARED} ALIAS ${LIB_SHARED})
if(WIN32)
set_property(TARGET ${LIB_SHARED} APPEND PROPERTY SOURCES "libssh2.rc")
endif()
target_compile_definitions(${LIB_SHARED} PRIVATE ${CRYPTO_BACKEND_DEFINE} ${_libssh2_definitions} ${LIB_SHARED_DEFINITIONS})
set_property(TARGET ${LIB_SHARED} APPEND PROPERTY COMPILE_OPTIONS "${LIBSSH2_PICKY_C_FLAGS}" "${LIB_SHARED_C_FLAGS}")
target_link_libraries(${LIB_SHARED} PRIVATE ${LIBSSH2_LIBS})
set_target_properties(${LIB_SHARED} PROPERTIES
PREFIX "" OUTPUT_NAME "libssh2" SOVERSION "${_libssh2_soversion}" VERSION "${_libssh2_libversion}"
IMPORT_PREFIX "" IMPORT_SUFFIX "${IMPORT_LIB_SUFFIX}${CMAKE_IMPORT_LIBRARY_SUFFIX}"
POSITION_INDEPENDENT_CODE ON)
target_include_directories(${LIB_SHARED}
PRIVATE
"${CMAKE_CURRENT_BINARY_DIR}" # to find generated header
"${PROJECT_SOURCE_DIR}/include"
PUBLIC
"$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>"
"$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
endif()
add_library(${PROJECT_NAME}::${LIB_NAME} ALIAS ${LIB_SELECTED})
add_library(${LIB_NAME} ALIAS ${LIB_SELECTED})
## Installation
if(NOT LIBSSH2_DISABLE_INSTALL)
install(FILES
"${PROJECT_SOURCE_DIR}/include/libssh2.h"
"${PROJECT_SOURCE_DIR}/include/libssh2_publickey.h"
"${PROJECT_SOURCE_DIR}/include/libssh2_sftp.h"
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
if(BUILD_STATIC_LIBS)
install(TARGETS ${LIB_STATIC}
EXPORT "${PROJECT_NAME}-targets"
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
endif()
if(BUILD_SHARED_LIBS)
install(TARGETS ${LIB_SHARED}
EXPORT "${PROJECT_NAME}-targets"
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
endif()
# Package config
## During package installation, install libssh2-targets.cmake
install(EXPORT "${PROJECT_NAME}-targets"
NAMESPACE "${PROJECT_NAME}::"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
## During build, register directly from build tree
# create libssh2-targets.cmake
export(TARGETS ${_libssh2_export} NAMESPACE "${PROJECT_NAME}::" FILE "${PROJECT_NAME}-targets.cmake")
export(PACKAGE ${PROJECT_NAME}) # register it
# Generate libssh2-config.cmake into build tree and install it with dependencies
configure_file("${PROJECT_SOURCE_DIR}/cmake/libssh2-config.in.cmake" "${PROJECT_NAME}-config.cmake" @ONLY)
install(
FILES
"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake"
"${PROJECT_SOURCE_DIR}/cmake/FindLibgcrypt.cmake"
"${PROJECT_SOURCE_DIR}/cmake/FindMbedTLS.cmake"
"${PROJECT_SOURCE_DIR}/cmake/FindWolfSSL.cmake"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
# Calculate variables for pkg-config
set(_ldflags "")
set(LIBSSH2_PC_LIBS_PRIVATE "")
# Avoid getting unnecessary -L options for known system directories.
set(_sys_libdirs "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
foreach(_libdir IN LISTS CMAKE_SYSTEM_PREFIX_PATH)
if(_libdir MATCHES "/$")
string(APPEND _libdir "lib")
else()
string(APPEND _libdir "/lib")
endif()
if(IS_DIRECTORY "${_libdir}")
list(APPEND _sys_libdirs "${_libdir}")
endif()
if(DEFINED CMAKE_LIBRARY_ARCHITECTURE)
string(APPEND _libdir "/${CMAKE_LIBRARY_ARCHITECTURE}")
if(IS_DIRECTORY "${_libdir}")
list(APPEND _sys_libdirs "${_libdir}")
endif()
endif()
endforeach()
set(_implicit_libs "")
if(NOT MINGW AND NOT UNIX)
set(_implicit_libs "${CMAKE_C_IMPLICIT_LINK_LIBRARIES}")
endif()
set(_explicit_libdirs "")
set(LIBSSH2_PC_REQUIRES_PRIVATE "")
foreach(_lib IN LISTS LIBSSH2_LIBS _implicit_libs)
if(TARGET "${_lib}")
set(_explicit_libs "")
get_target_property(_imported "${_lib}" IMPORTED)
if(NOT _imported)
# Reading the LOCATION property on non-imported target errors out.
# Assume the user does not need this information in the .pc file.
continue()
endif()
get_target_property(_libname "${_lib}" LOCATION)
if(_libname)
set(_explicit_libs "${_libname}")
else()
get_target_property(_libs "${_lib}" INTERFACE_LINK_LIBRARIES)
if(_libs)
set(_explicit_libs "${_libs}")
endif()
get_target_property(_libdirs "${_lib}" INTERFACE_LINK_DIRECTORIES)
if(_libdirs)
list(APPEND _explicit_libdirs "${_libdirs}")
endif()
endif()
if(NOT _libname AND NOT _libs AND NOT _libdirs)
message(WARNING "Bad lib in library list: ${_lib}")
endif()
if(_lib STREQUAL OpenSSL::Crypto AND NOT HAVE_BORINGSSL) # BoringSSL does not provide libcrypto.pc
set(_modules "libcrypto")
elseif(_lib STREQUAL ZLIB::ZLIB AND NOT ANDROID) # Android does not provide zlib.pc
set(_modules "zlib")
else()
get_target_property(_modules "${_lib}" INTERFACE_LIBSSH2_PC_MODULES)
endif()
if(_modules)
list(APPEND LIBSSH2_PC_REQUIRES_PRIVATE "${_modules}")
endif()
foreach(_lib IN LISTS _explicit_libs)
if(_lib MATCHES "/")
# This gets a bit more complex, because we want to specify the
# directory separately, and only once per directory
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.20)
cmake_path(GET _lib PARENT_PATH _libdir)
cmake_path(GET _lib STEM _libname)
else()
get_filename_component(_libdir "${_lib}" DIRECTORY)
get_filename_component(_libname "${_lib}" NAME_WE)
endif()
if(_libname MATCHES "^lib")
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.20)
cmake_path(SET _libdir NORMALIZE "${_libdir}")
endif()
list(FIND _sys_libdirs "${_libdir}" _libdir_index)
if(_libdir_index LESS 0)
list(APPEND _ldflags "-L${_libdir}")
endif()
string(REGEX REPLACE "^lib" "" _libname "${_libname}")
list(APPEND LIBSSH2_PC_LIBS_PRIVATE "-l${_libname}")
else()
list(APPEND LIBSSH2_PC_LIBS_PRIVATE "${_lib}")
endif()
elseif(_lib MATCHES "^-") # '-option'
list(APPEND LIBSSH2_PC_LIBS_PRIVATE "${_lib}")
else()
list(APPEND LIBSSH2_PC_LIBS_PRIVATE "-l${_lib}")
endif()
endforeach()
elseif(_lib MATCHES "^-") # '-framework <name>'
list(APPEND _ldflags "${_lib}")
else()
list(APPEND LIBSSH2_PC_LIBS_PRIVATE "-l${_lib}")
endif()
endforeach()
foreach(_libdir IN LISTS _explicit_libdirs)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.20)
cmake_path(SET _libdir NORMALIZE "${_libdir}")
endif()
list(FIND _sys_libdirs "${_libdir}" _libdir_index)
if(_libdir_index LESS 0)
list(APPEND _ldflags "-L${_libdir}")
endif()
endforeach()
if(LIBSSH2_PC_REQUIRES_PRIVATE)
list(REMOVE_DUPLICATES LIBSSH2_PC_REQUIRES_PRIVATE)
string(REPLACE ";" "," LIBSSH2_PC_REQUIRES_PRIVATE "${LIBSSH2_PC_REQUIRES_PRIVATE}")
endif()
if(LIBSSH2_PC_LIBS_PRIVATE)
# Remove duplicates listed next to each other
set(_libs "")
set(_prev "")
foreach(_lib IN LISTS LIBSSH2_PC_LIBS_PRIVATE)
if(NOT _prev STREQUAL _lib)
list(APPEND _libs "${_lib}")
set(_prev "${_lib}")
endif()
endforeach()
set(LIBSSH2_PC_LIBS_PRIVATE "${_libs}")
string(REPLACE ";" " " LIBSSH2_PC_LIBS_PRIVATE "${LIBSSH2_PC_LIBS_PRIVATE}")
endif()
if(_ldflags)
list(REMOVE_DUPLICATES _ldflags)
string(REPLACE ";" " " _ldflags "${_ldflags}")
set(LIBSSH2_PC_LIBS_PRIVATE "${_ldflags} ${LIBSSH2_PC_LIBS_PRIVATE}")
string(STRIP "${LIBSSH2_PC_LIBS_PRIVATE}" LIBSSH2_PC_LIBS_PRIVATE)
endif()
# Merge pkg-config private fields into public ones when static-only
if(BUILD_SHARED_LIBS)
set(LIBSSH2_PC_REQUIRES "")
set(LIBSSH2_PC_LIBS "")
else()
set(LIBSSH2_PC_REQUIRES "${LIBSSH2_PC_REQUIRES_PRIVATE}")
set(LIBSSH2_PC_LIBS "${LIBSSH2_PC_LIBS_PRIVATE}")
endif()
set(prefix "${CMAKE_INSTALL_PREFIX}")
set(exec_prefix "\${prefix}")
if(IS_ABSOLUTE ${CMAKE_INSTALL_INCLUDEDIR})
set(includedir "${CMAKE_INSTALL_INCLUDEDIR}")
else()
set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
endif()
if(IS_ABSOLUTE ${CMAKE_INSTALL_LIBDIR})
set(libdir "${CMAKE_INSTALL_LIBDIR}")
else()
set(libdir "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
endif()
# Generate a pkg-config file for client projects not using CMake.
# Consumed variables:
# exec_prefix
# includedir
# LIBSSH2_PC_LIBS
# LIBSSH2_PC_LIBS_PRIVATE
# LIBSSH2_PC_REQUIRES
# LIBSSH2_PC_REQUIRES_PRIVATE
# LIBSSH2_VERSION
# libdir
# prefix
configure_file("${PROJECT_SOURCE_DIR}/libssh2.pc.in" "libssh2.pc" @ONLY)
install(
FILES "${CMAKE_CURRENT_BINARY_DIR}/libssh2.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
# Consumed variables:
# CMAKE_MINIMUM_REQUIRED_VERSION
# CRYPTO_BACKEND
# LIB_NAME
# LIB_SELECTED
# LIB_SHARED
# LIB_STATIC
# LIBSSH2_USE_PKGCONFIG
# ZLIB_FOUND
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake"
VERSION "${LIBSSH2_VERSION_MAJOR}.${LIBSSH2_VERSION_MINOR}.${LIBSSH2_VERSION_PATCH}"
COMPATIBILITY SameMajorVersion)
install(
FILES "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")
endif()