discover/grub2: Clean lexer.[ch]

`make distcheck` fails with a couple of failes remaining after clean.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

diff --git a/discover/grub2/Makefile.am b/discover/grub2/Makefile.am
index 902f94f331400d65fefbad964c587e37186d9b87..48b36f0f36c170d9cc745587b9d3ee01cc42725d 100644 (file)
--- a/discover/grub2/Makefile.am
+++ b/discover/grub2/Makefile.am
@@ -38,7 +38,8 @@ grub2_parser_ro_SOURCES = \
        script.c \
        parser.c
 
-BUILT_SOURCES = parser.h lexer.h
+BUILT_SOURCES = parser.h lexer.h lexer.c lexer.h
+CLEANFILES = lexer.c lexer.h
 
 # ylwrap doesn't handle flex header files well; use our own rule here.
 lexer.h lexer.c: lexer.l