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# Optional external dependency: libssh2
if(USE_SSH)
find_pkglibraries(LIBSSH2 libssh2)
if(NOT LIBSSH2_FOUND)
find_package(LibSSH2)
set(LIBSSH2_INCLUDE_DIRS ${LIBSSH2_INCLUDE_DIR})
get_filename_component(LIBSSH2_LIBRARY_DIRS "${LIBSSH2_LIBRARY}" DIRECTORY)
set(LIBSSH2_LIBRARIES ${LIBSSH2_LIBRARY})
set(LIBSSH2_LDFLAGS "-lssh2")
endif()
if(NOT LIBSSH2_FOUND)
message(FATAL_ERROR "LIBSSH2 not found. Set CMAKE_PREFIX_PATH if it is installed outside of the default search path.")
endif()
endif()
if(LIBSSH2_FOUND)
set(GIT_SSH 1)
list(APPEND LIBGIT2_SYSTEM_INCLUDES ${LIBSSH2_INCLUDE_DIRS})
list(APPEND LIBGIT2_LIBS ${LIBSSH2_LIBRARIES})
list(APPEND LIBGIT2_PC_LIBS ${LIBSSH2_LDFLAGS})
check_library_exists("${LIBSSH2_LIBRARIES}" libssh2_userauth_publickey_frommemory "${LIBSSH2_LIBRARY_DIRS}" HAVE_LIBSSH2_MEMORY_CREDENTIALS)
if(HAVE_LIBSSH2_MEMORY_CREDENTIALS)
set(GIT_SSH_MEMORY_CREDENTIALS 1)
endif()
else()
message(STATUS "LIBSSH2 not found. Set CMAKE_PREFIX_PATH if it is installed outside of the default search path.")
endif()
if(WIN32 AND EMBED_SSH_PATH)
file(GLOB SSH_SRC "${EMBED_SSH_PATH}/src/*.c")
list(SORT SSH_SRC)
list(APPEND LIBGIT2_OBJECTS ${SSH_SRC})
list(APPEND LIBGIT2_INCLUDES "${EMBED_SSH_PATH}/include")
file(WRITE "${EMBED_SSH_PATH}/src/libssh2_config.h" "#define HAVE_WINCNG\n#define LIBSSH2_WINCNG\n#include \"../win32/libssh2_config.h\"")
set(GIT_SSH 1)
endif()
add_feature_info(SSH GIT_SSH "SSH transport support")
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