Hi avati, Please find the attached patch. Well now the configure will exit for byacc parser as it doesn't have yylval defined as YYSTYPE inside y.tab.h of which bison has I tried adding a below type of code to spec.y to actually support byacc. But found some errors further. #if ! defined YYSTYPE && .... typedef int YYSTYPE; ..... ..... extern YYSTYPE yylval; Which byacc lacks yylval declaration inside y.tab.h. Sole reason why build breaks. Right now byacc will not be supported as parser for glusterfs. Regards >> >> That might be a problem with 'byacc' and 'bison' compatibility. These >> were seen at many places with many other packages. Even the 'bison -y' >> i don't think is fully 'byacc' mode. As you can see after installing >> bison the error goes away and 'make' is smooth as it has to be. But >> for having that compatibility check we can add in configure.ac a better >> check for yylval, and yylex function. > > Good suggestion, please send a patch to configure.ac to check for yylval > > > avati > > > -- > ultimate_answer_t > deep_thought (void) > { > sleep (years2secs (7500000)); > return 42; > } > > -- Harshavardhana "Software gets slower faster as Hardware gets faster"