http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53679 --- libgo/runtime/print.c 2012-05-26 04:22:14.000000000 +1000 +++ libgo/runtime/print.c 2012-06-16 15:06:28.553138502 +1000 @@ -17,7 +17,8 @@ G* g = runtime_g(); if(g == nil || g->writebuf == nil) { - runtime_write(2, v, n); + ssize_t bytesWritten = runtime_write(2, v, n); + (void)bytesWritten; return; }