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btrfs-progs: fix symlink creation multiple times 

The rule to create symlink in Makefile caused parallel issue:
$ make -j 40 DESTDIR=/image install BUILD_VERBOSE=1
...
  1     [LN]     libbtrfs.so.0
  2     [LN]     libbtrfs.so
  3 ln -s -f libbtrfs.so.0.1 libbtrfs.so.0
  4 ln -s -f libbtrfs.so.0.1 libbtrfs.so.0
  5 ln -s -f libbtrfs.so.0.1 libbtrfs.so
  6 ln -s -f libbtrfs.so.0.1 libbtrfs.so
...

It failed occasionally:
...
|symlinkat: couldn't stat 'git/libbtrfs.so' even though symlink
creation succeeded (No such file or directory).
|ln: failed to create symbolic link 'libbtrfs.so': No such file or directory
...

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Hongxu Jia 2016-02-18 21:14:34 -05:00 committed by David Sterba
parent 476d17fe38
commit bfc2cb7cfb
1 changed files with 1 additions and 2 deletions
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3
Makefile.in
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@ -236,8 +236,7 @@ $(libs_static): $(libbtrfs_objects)
$(lib_links): $(lib_links):
@echo " [LN] $@" @echo " [LN] $@"
$(Q)$(LN_S) -f libbtrfs.so.0.1 libbtrfs.so.0 $(Q)$(LN_S) -f libbtrfs.so.0.1 $@
$(Q)$(LN_S) -f libbtrfs.so.0.1 libbtrfs.so
# keep intermediate files from the below implicit rules around # keep intermediate files from the below implicit rules around
.PRECIOUS: $(addsuffix .o,$(progs)) .PRECIOUS: $(addsuffix .o,$(progs))