zig -O

README.md

@@ -7,7 +7,7 @@ zig 0.13.0
 
 
 
-$ zig build-exe porttest.zig -femit-bin=porttest
+$ zig build-exe porttest.zig -O ReleaseFast -femit-bin=porttest
 
 $ printf '\x00\x05hello' | ./porttest | hexdump -C
 00000000  00 0c 48 65 6c 6c 6f 20  77 6f 72 6c 64 21        |..Hello world!|