--- pdns-recursor-3.1.4/recursor_cache.cc.old 2007-10-20 17:16:25.000000000 +1000 +++ pdns-recursor-3.1.4/recursor_cache.cc 2007-10-20 17:14:10.000000000 +1000 @@ -11,7 +11,7 @@ #include "config.h" #ifdef GCC_SKIP_LOCKING -#include +#include // This code is ugly but does speedup the recursor tremendously on multi-processor systems, and even has a large effect (20, 30%) on uniprocessor namespace __gnu_cxx {