niXman <i.nixman@xxxxxxxxx> writes: > I've built MInGW using the sources GCC version 4.7.1. > When using LTO '-flto=N' when N greater 1 - I get the following error: >> "make": [C:\Users\niXman\AppData\Local\Temp\ccl7QYlh.ltrans0.ltrans.o] Error 1 (ignored) That should not be the only error message. What are the other ones? When you use -flto=N, GCC simply turns that into a -j N option for make. Perhaps your copy of make does not suport -j? Ian