+if(ALLOW_NO_SIGNATURE)
+ add_definitions(-DDEFAULT_ALLOW_NO_SIGNATURE=1)
+else(ALLOW_NO_SIGNATURE)
+ add_definitions(-DDEFAULT_ALLOW_NO_SIGNATURE=0)
+endif(ALLOW_NO_SIGNATURE)
+if(DISTINCT_VERSIONS)
+ add_definitions(-DDISTINCT_VERSIONS=1)
+else(DISTINCT_VERSIONS)
+ add_definitions(-DDISTINCT_VERSIONS=0)
+endif(DISTINCT_VERSIONS)