Travis script must install byacc, too.
Travis script must install byacc, too.

JX7P/PCPlusPlus,JX7P/JXObjC,JX7P/PCPlusPlus,JX7P/PCPlusPlus,JX7P/JXObjC,Objective-C-JX/JXobjC,Objective-C-JX/JXobjC,JX7P/JXObjC,Objective-C-JX/JXobjC