config: let Automake handle Lex and Yacc dist and cleaning

BUILT_SOURCES and MAINTAINERCLEAN are not needed for lex and yacc
Note that xkbscan was missing on those lines.

Automake generates all the rules to handle building, distribution
and cleaning.

Acked-by: Daniel Stone <>
Reviewed-by: Kristian Høgsberg <>
Signed-off-by: Gaetan Nadon <>
1 file changed