message: using CMAKE_CURRENT_SOURCE_DIR in place of CMAKE_SOURCE_DIR for FetchContent
diff: @@ -6,35 +6,35 @@ set(__add_lief_git ON)
  execute_process(
  COMMAND ${GIT_EXECUTABLE} log -1 --format=%h
  - WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  + WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE LIEF_COMMIT_HASH
  OUTPUT_STRIP_TRAILING_WHITESPACE
  )
  execute_process(
  COMMAND ${GIT_EXECUTABLE} rev-list --count ${LIEF_COMMIT_HASH}
  - WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  + WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE LIEF_COMMIT_COUNT
  OUTPUT_STRIP_TRAILING_WHITESPACE
  )
  execute_process(
  COMMAND ${GIT_EXECUTABLE} describe --abbrev=0 --tags HEAD --always
  - WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  + WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE LIEF_GIT_TAG
  OUTPUT_STRIP_TRAILING_WHITESPACE
  )
  execute_process(
  COMMAND ${GIT_EXECUTABLE} tag --list --points-at=HEAD
  - WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  + WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE LIEF_GIT_COMMIT_TAGGED
  OUTPUT_STRIP_TRAILING_WHITESPACE
  )
  execute_process(
  COMMAND ${GIT_EXECUTABLE} rev-parse --abbrev-ref HEAD
  - WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
  + WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
  OUTPUT_VARIABLE LIEF_GIT_BRANCH
  OUTPUT_STRIP_TRAILING_WHITESPACE
  )
  