Fix perl build hanging on pipe
Fix perl build hanging on pipe

Change-Id: Ic1ff95f45c6082b9310b27783190ce8f92c2afad

veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi,veritas-shine/minix3-rpi