Don't use the map file if the build type is debug.

libssh/CMakeLists.txt

@@ -162,14 +162,14 @@ set_target_properties(
         ssh
 )
 
-if (UNIX AND CMAKE_COMPILER_IS_GNUCC)
+if (UNIX AND CMAKE_COMPILER_IS_GNUCC AND NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
   set_target_properties(
     ${LIBSSH_SHARED_LIBRARY}
       PROPERTIES
         LINK_FLAGS
           -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/libssh.map
 )
-endif (UNIX AND CMAKE_COMPILER_IS_GNUCC)
+endif (UNIX AND CMAKE_COMPILER_IS_GNUCC AND NOT CMAKE_BUILD_TYPE STREQUAL "Debug")
 
 install(
   TARGETS