Building oaf-0.6.6 with bison-1.29 installed failed for me with the
following error:

...
bison -y -d -v ./ac-query-parse.y
touch stamp-parser
test -f y.tab.h && mv -f y.tab.h ac-query-parse.h || touch ac-query-parse.h
flex -t ./ac-query-lex.l >ac-query-lex.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I..                           -I..      
     
                -I../liboaf                     -I../liboaf               
     
        -DOAFINFODIR=\"/usr/local/share/oaf\"                  
-DOAF_LOCALEDIR=\""/usr/local/share/locale"\"  
-I/usr/local/include/glib-1.2 -I/usr/local/lib/glib/include
-I/usr/local/include                                       
-I/usr/local/include/gnome-xml                                 
-I/usr/local/include/glib-1.2 -I/usr/local/lib/glib/include               
                     -DOAF_CONFDIR=\"/usr/local/etc\"                     
      -O2 -mcpu=v8 -c ac-query-lex.c
test -f y.tab.c && mv -f y.tab.c ac-query-parse.c || touch ac-query-parse.c
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I..                           -I..      
     
                -I../liboaf                     -I../liboaf               
     
        -DOAFINFODIR=\"/usr/local/share/oaf\"                  
-DOAF_LOCALEDIR=\""/usr/local/share/locale"\"  
-I/usr/local/include/glib-1.2 -I/usr/local/lib/glib/include
-I/usr/local/include                                       
-I/usr/local/include/gnome-xml                                 
-I/usr/local/include/glib-1.2 -I/usr/local/lib/glib/include               
                     -DOAF_CONFDIR=\"/usr/local/etc\"                     
      -O2 -mcpu=v8 -c ac-query-parse.c
/usr/local/share/bison/bison.simple:76: parse error
gmake[2]: *** [ac-query-parse.o] Error 1
gmake[2]: Leaving directory `/aux.old/oaf-0.6.6/oafd'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/aux.old/oaf-0.6.6'
gmake: *** [all-recursive-am] Error 2