message: [CMake]: Fix version in pkgconfig file
  This change checks if the current source directory is a git repository.
  If this is not checked the git command picks the commit hash from
  parent directory. e.g. when tarball is extracted in a packaging repository.
diff: @@ -4,7 +4,7 @@ set(VERSION_PATCH 5)
  set(VERSION_COMMIT 0)
  find_program(GIT git)
  -if(GIT)
  +if(GIT AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
  execute_process(
  COMMAND ${GIT} describe --tags
  WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  