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btrfs-progs: build: omit unnecessary -MD flag

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According to gcc(1), "-MD is equivalent to -M -MF file, except that -E is not
implied." Since the rule in the Makefile is just generating dependency file
and not building object file, it is no use to have "-MD" here. Also, it's
overridden and conflicting with the following "-MM" flag. I guess we can drop
it.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Naohiro Aota 2017-09-14 19:10:56 +09:00 committed by David Sterba
parent fd8c78a47c
commit 3efd322db2
1 changed files with 1 additions and 1 deletions
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Makefile
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@ -265,7 +265,7 @@ else
endif
%.o.d: %.c
$(Q)$(CC) -MD -MM -MG -MF $@ -MT $(@:.o.d=.o) -MT $(@:.o.d=.static.o) -MT $@ $(CFLAGS) $<
$(Q)$(CC) -MM -MG -MF $@ -MT $(@:.o.d=.o) -MT $(@:.o.d=.static.o) -MT $@ $(CFLAGS) $<
#
# Pick from per-file variables, btrfs_*_cflags