Use -O not -O3: reduces ccan/tdb test time from 24 to 18 seconds.
[ccan] / ccan / md4 /
drwxr-xr-x   ..
-rw-r--r-- 1079 _info
-rw-r--r-- 5308 md4.c
-rw-r--r-- 1389 md4.h
drwxr-xr-x - test