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https://issues.apache.org/jira/browse/TS-4708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15450165#comment-15450165
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Peter Chou commented on TS-4708:
--------------------------------
I think that I have narrowed this down to a libtool behavior. In the make
files, we are linking to the .la file rather than to the un-installed shared
library. Libtool will somehow translate the explicit .la file (within the build
tree) to -l* which may search outside of the build tree, e.g.,
../../lib/ts/libtsutil.la in the libtool command ends up being -ltsutil in the
eventual ld command. I happen to have the older ATS 6.x libtsutil.so in my lib
so it ends up linking against that even when I am building ATS 7.x.
Not sure this is worth the effort to fix. Probably easier just to be aware of
and avoid the situation.
> traffic_cop looking for libtsutil.so.6 although libtsutil.so.7 was built.
> -------------------------------------------------------------------------
>
> Key: TS-4708
> URL: https://issues.apache.org/jira/browse/TS-4708
> Project: Traffic Server
> Issue Type: Bug
> Components: Cop
> Reporter: Peter Chou
> Fix For: 7.0.0
>
>
> Apologies if this is a known issue. I looked through several pages of search
> results for traffic_cop and did not see this particular issue. Platform is
> Ubuntu Linux 14.04 LTS 64-bit. I have previously installed and ran 6.1.x
> under $HOME/local (I am running as an un-privileged user). I just tried
> compiling and running "master" or 7.0.0 and installed to $HOME/master. I gave
> the appropriate "--prefix" option to configure each time. Neither of the
> directories above are in my LD_LIBRARY_PATH at compile or run time.
> Result: traffic_manager starts OK , traffic_server starts OK , traffic_cop
> fails since it is looking for version-6 library. If I then add
> $HOME/local/lib to my LD_LIBRARY_PATH (contains previous 6.1.x build), then
> traffic_cop runs using the version-6 library under there. No idea why it
> doesn't use the version-7 library that was built at the same time and
> installed under $HOME/master.
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