netdev - [PATCH bpf-next 7/7] tools: bpf: silence make by not deleting intermediate file

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Message-Id: <dceb00fcdfb99c4fb8e59a1bcad575696e44ea3c.1520545951.git.jbenc@redhat.com>
Date:   Thu,  8 Mar 2018 23:00:41 +0100
From:   Jiri Benc <jbenc@...hat.com>
To:     netdev@...r.kernel.org
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Subject: [PATCH bpf-next 7/7] tools: bpf: silence make by not deleting intermediate file

Even in quiet mode, make finishes with

rm tools/bpf/bpf_exp.lex.c

That's because it considers the file to be intermediate. Silence that by
mentioning the lex.c file instead of the lex.o file; the dependency still
stays.

Signed-off-by: Jiri Benc <jbenc@...hat.com>
---
 tools/bpf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/bpf/Makefile b/tools/bpf/Makefile
index 757ea22c428a..c07b4e718eeb 100644
--- a/tools/bpf/Makefile
+++ b/tools/bpf/Makefile
@@ -75,7 +75,7 @@ $(OUTPUT)bpf_dbg: $(OUTPUT)bpf_dbg.o
 $(OUTPUT)bpf_asm: $(OUTPUT)bpf_asm.o $(OUTPUT)bpf_exp.yacc.o $(OUTPUT)bpf_exp.lex.o
 	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^
 
-$(OUTPUT)bpf_exp.lex.o: $(OUTPUT)bpf_exp.yacc.c
+$(OUTPUT)bpf_exp.lex.c: $(OUTPUT)bpf_exp.yacc.c
 
 clean: bpftool_clean
 	$(call QUIET_CLEAN, bpf-progs)
-- 
1.8.3.1