ORBit compile fail

["Matt Greenfield" <matthewg clear net nz>]

hmm, an attempt to compile ORBit 0.4.94 comes up with this:

make[4]: Leaving directory `/usr/src/gnome/ORBit-0.4.94/popt'
make[3]: Leaving directory `/usr/src/gnome/ORBit-0.4.94/popt'
make[2]: Leaving directory `/usr/src/gnome/ORBit-0.4.94/popt'
Making all in libIDL
make[2]: Entering directory `/usr/src/gnome/ORBit-0.4.94/libIDL'
yacc -d -v 2>/dev/null ./parser.y
make[2]: *** [stamp-parser] Error 127
make[2]: Leaving directory `/usr/src/gnome/ORBit-0.4.94/libIDL'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/src/gnome/ORBit-0.4.94'
make: *** [all-recursive-am] Error 2

Is my yacc ill?

thanks
Matt