fix build on Solaris buildbot, or in general, for automake >= 1.12
fix build on Solaris buildbot, or in general, for automake >= 1.12

davidbz/trafficserver,chenglongwei/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,clearswift/trafficserver,rpufky/trafficserver,rpufky/trafficserver,SolidWallOfCode/trafficserver,PSUdaemon/trafficserver,pbchou/trafficserver,taoyunxing/trafficserver,rpufky/trafficserver,reveller/trafficserver,rahmalik/trafficserver,PSUdaemon/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,bryancall/trafficserver,persiaAziz/trafficserver,bryancall/trafficserver,duke8253/trafficserver,duke8253/trafficserver,persiaAziz/trafficserver,taoyunxing/trafficserver,chitianhao/trafficserver,taoyunxing/trafficserver,davidbz/trafficserver,rahmalik/trafficserver,taoyunxing/trafficserver,PSUdaemon/trafficserver,pbchou/trafficserver,bryancall/trafficserver,rahmalik/trafficserver,reveller/trafficserver,dyrock/trafficserver,clearswift/trafficserver,persiaAziz/trafficserver,pbchou/trafficserver,PSUdaemon/trafficserver,persiaAziz/trafficserver,SolidWallOfCode/trafficserver,chenglongwei/trafficserver,clearswift/trafficserver,clearswift/trafficserver,duke8253/trafficserver,davidbz/trafficserver,reveller/trafficserver,reveller/trafficserver,rahmalik/trafficserver,dyrock/trafficserver,clearswift/trafficserver,reveller/trafficserver,reveller/trafficserver,chitianhao/trafficserver,persiaAziz/trafficserver,rpufky/trafficserver,rahmalik/trafficserver,davidbz/trafficserver,persiaAziz/trafficserver,dyrock/trafficserver,chenglongwei/trafficserver,vmamidi/trafficserver,PSUdaemon/trafficserver,chenglongwei/trafficserver,dyrock/trafficserver,chenglongwei/trafficserver,bryancall/trafficserver,taoyunxing/trafficserver,duke8253/trafficserver,pbchou/trafficserver,vmamidi/trafficserver,reveller/trafficserver,vmamidi/trafficserver,rahmalik/trafficserver,chenglongwei/trafficserver,SolidWallOfCode/trafficserver,SolidWallOfCode/trafficserver,taoyunxing/trafficserver,clearswift/trafficserver,rahmalik/trafficserver,chenglongwei/trafficserver,PSUdaemon/trafficserver,pbchou/trafficserver,PSUdaemon/trafficserver,PSUdaemon/trafficserver,duke8253/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,rpufky/trafficserver,SolidWallOfCode/trafficserver,rpufky/trafficserver,clearswift/trafficserver,taoyunxing/trafficserver,davidbz/trafficserver,rpufky/trafficserver,rpufky/trafficserver,taoyunxing/trafficserver,chitianhao/trafficserver,persiaAziz/trafficserver,dyrock/trafficserver,rpufky/trafficserver,rahmalik/trafficserver,dyrock/trafficserver,taoyunxing/trafficserver,PSUdaemon/trafficserver,bryancall/trafficserver,SolidWallOfCode/trafficserver,clearswift/trafficserver,pbchou/trafficserver,chitianhao/trafficserver,reveller/trafficserver,vmamidi/trafficserver,bryancall/trafficserver,vmamidi/trafficserver,davidbz/trafficserver,persiaAziz/trafficserver,SolidWallOfCode/trafficserver,rahmalik/trafficserver,clearswift/trafficserver,chenglongwei/trafficserver,chitianhao/trafficserver,reveller/trafficserver