cmake: Write libssh-config.cmake using EXPORTS

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>

CMakeLists.txt

@@ -133,15 +133,8 @@ write_basic_package_version_file(libssh-config-version.cmake
                                  VERSION ${PROJECT_VERSION}
                                  COMPATIBILITY SameMajorVersion)
 
-# libssh-config.cmake
-configure_package_config_file(${PROJECT_NAME}-config.cmake.in
-                              ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
-                              INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}
-                              PATH_VARS CMAKE_INSTALL_FULL_INCLUDEDIR CMAKE_INSTALL_FULL_LIBDIR)
-
 install(
     FILES
-        ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config.cmake
         ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}-config-version.cmake
     DESTINATION
         ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}

libssh-config.cmake.in

@@ -1,15 +0,0 @@
-@PACKAGE_INIT@
-
-if (EXISTS "${CMAKE_CURRENT_LIST_DIR}/CMakeCache.txt")
-    # In tree build
-    set_and_check(LIBSSH_INCLUDE_DIR "${CMAKE_CURRENT_LIST_DIR}/include")
-    set_and_check(LIBSSH_LIBRARIES "${CMAKE_CURRENT_LIST_DIR}/lib/@LIBSSH_LIBRARY_NAME@")
-else()
-    set_and_check(LIBSSH_INCLUDE_DIR "@PACKAGE_INCLUDE_INSTALL_DIR@")
-    set_and_check(LIBSSH_LIBRARIES "@PACKAGE_LIB_INSTALL_DIR@/@LIBSSH_LIBRARY_NAME@")
-endif()
-
-# For backward compatibility
-set(LIBSSH_LIBRARY ${LIBSSH_LIBRARIES})
-
-mark_as_advanced(LIBSSH_LIBRARIES LIBSSH_LIBRARY LIBSSH_INCLUDE_DIR)

src/CMakeLists.txt

@@ -355,11 +355,15 @@ endif ()
 
 
 install(TARGETS ${LIBSSH_SHARED_LIBRARY}
+        EXPORT libssh-config
         RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
         LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
         ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
         COMPONENT libraries)
 
+install(EXPORT libssh-config
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})
+
 if (BUILD_STATIC_LIB)
   add_library(${LIBSSH_STATIC_LIBRARY} STATIC ${libssh_SRCS})
   target_compile_options(${LIBSSH_STATIC_LIBRARY}