# - If functions were added, removed or changed, increment [LIB]_CURRENT
# - If functions were added, increment [LIB]_AGE
# - If functions were removed, set [LIB]_AGE to 0
# - If functions were added, removed or changed, increment [LIB]_CURRENT
# - If functions were added, increment [LIB]_AGE
# - If functions were removed, set [LIB]_AGE to 0