errors

[Pratima Nallapaneni]

I am new to bison and i am getting these errors. I
donno how to figure out a solution for them
Please help me

"/usr/local/share/bison.simple", line 117: syntax
error before or at: /         
"/usr/local/share/bison.simple", line 117: undefined
or not a type: TreeNode    
"/usr/local/share/bison.simple", line 117: warning:
old-style declaration or in$
"/usr/local/share/bison.simple", line 223: syntax
error before or at: /         
"/usr/local/share/bison.simple", line 266: undefined
symbol: yyerrstatus        
"/usr/local/share/bison.simple", line 275: undefined
symbol: yyss               
"/usr/local/share/bison.simple", line 275: warning:
improper pointer/integer co$
"/usr/local/share/bison.simple", line 276: undefined
symbol: yyvsp              
"/usr/local/share/bison.simple", line 276: undefined
symbol: yyvs               
"/usr/local/share/bison.simple", line 288: undefined
symbol: yystacksize        
"/usr/local/share/bison.simple", line 288: warning:
improper pointer/integer co$
"/usr/local/share/bison.simple", line 292: syntax
error before or at: /         
"/usr/local/share/bison.simple", line 333: warning:
improper pointer/integer co$
"/usr/local/share/bison.simple", line 334: undefined
symbol: yyss1              
"/usr/local/share/bison.simple", line 334: undefined
symbol: size               
"/usr/local/share/bison.simple", line 335: syntax
error before or at: /         
"/usr/local/share/bison.simple", line 336: undefined
symbol: yyvs1              
"/usr/local/share/bison.simple", line 336: cannot
dereference non-pointer type  

Thanks
pratima

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