Changed AC_LANG from PROGRAM to SOURCE to prevent double definition of main
Changed AC_LANG from PROGRAM to SOURCE to prevent double definition of main

PPC64/folly,PPC64/folly,facebook/folly,gaoyingie/folly,charsyam/folly,Hincoin/folly,brunomorishita/folly,mqeizi/folly,rklabs/folly,alexst07/folly,mqeizi/folly,sonnyhu/folly,Orvid/folly,facebook/folly,facebook/folly,sonnyhu/folly,PPC64/folly,PPC64/folly,sonnyhu/folly,charsyam/folly,Orvid/folly,Orvid/folly,brunomorishita/folly,juniway/folly,rklabs/folly,alexst07/folly,Hincoin/folly,Orvid/folly,brunomorishita/folly,alexst07/folly,charsyam/folly,juniway/folly,brunomorishita/folly,rklabs/folly,floxard/folly,facebook/folly,mqeizi/folly,gaoyingie/folly,Hincoin/folly,floxard/folly,Orvid/folly,juniway/folly,rklabs/folly,Hincoin/folly,brunomorishita/folly,rklabs/folly,juniway/folly,juniway/folly,gaoyingie/folly,mqeizi/folly,mqeizi/folly,floxard/folly,Hincoin/folly,sonnyhu/folly,floxard/folly,floxard/folly,alexst07/folly,gaoyingie/folly,gaoyingie/folly,facebook/folly,charsyam/folly,PPC64/folly,alexst07/folly,sonnyhu/folly