conf_parser.cxx:340: error: `aConf' undeclared (first use this function)

I just tried to compile htdig from CVS (23rd Oct 2004) on Suse 9.1. 
Initially I didn't have yacc installed so it failed but now I have 
installed yacc (version 91.7.30-768 from Suse 9.0, no 9.1 version 
available) and also bison rpms (version 1.875).


Now I get the following error...

conf_parser.cxx: In function `int yyparse()':
conf_parser.cxx:340: error: `aConf' undeclared (first use this function)
conf_parser.cxx:340: error: (Each undeclared identifier is reported only 
once
   for each function it appears in.)
conf_parser.cxx:271: warning: label `yyerrlab' defined but not used
/usr/include/g++/iostream: At top level:
conf_parser.cxx:3: warning: `char yyrcsid[52]' defined but not used
make[1]: *** [conf_parser.lo] Error 1
make[1]: Leaving directory `/mnt/data/local/src/htdig/htcommon'
make: *** [all-recursive] Error 1



If I grep the config.log file I see that bison is detected...

simon@suse:/usr/local/src/htdig> grep "bison" config.log
configure:4198: checking for bison
configure:4214: found /usr/bin/bison
configure:4224: result: bison -y
ac_cv_prog_YACC='bison -y'
YACC='bison -y'


If I grep for aconf, the function that seems to be causing all the 
tears, I get...
simon@suse:/usr/local/src/htdig> grep -i "aconf" * -R
htcommon/conf_parser.cxx:#define YYPARSE_PARAM aConf
htcommon/conf_parser.cxx:               ((HtConfiguration 
*)aConf)->AddParsed(yyvsp[0].ConfLine->name,yyvsp[0].ConfLine->value);
htcommon/conf_parser.cxx:                     ((HtConfiguration 
*)aConf)->Add(yyvsp[-10].str,yyvsp[-8].str,yyvsp[-5].ConfLines);
htcommon/conf_parser.yxx:#define YYPARSE_PARAM aConf
htcommon/conf_parser.yxx:               ((HtConfiguration 
*)aConf)->AddParsed($1->name,$1->value);
htcommon/conf_parser.yxx:                     ((HtConfiguration 
*)aConf)->Add($2,$4,$7);


The only other case I can find of this error was from the dev mailing 
list back in April...
http://sourceforge.net/mailarchive/message.php?msg_id=8195355
It appears that when Joe tried the following (for me it is 
/usr/bin/bison) and it worked for him...
gmake distclean
YACC="/usr/local/bin/bison"
export YACC
./configure
gmake
...but it made no difference for me :-( even using "export 
YACC="/usr/bin/bison -y" as later suggested by Gilles.


Any help on solving this puzzle would be appreciated.
Thanks,
SimonB



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