This patch makes the build system pass -Wl,-rpath=$out/lib even for
libraries (it already does so for executables, thanks to 'DO_GNU_APP'
in 'Makefile.shared'.)

--- openssl-1.0.2a/Makefile.shared	2015-04-05 01:07:35.357602454 +0200
+++ openssl-1.0.2a/Makefile.shared	2015-04-05 01:09:50.474513303 +0200
@@ -106,7 +106,7 @@ LINK_SO=	\
     LIBPATH=`for x in $$LIBDEPS; do echo $$x; done | sed -e 's/^ *-L//;t' -e d | uniq`; \
     LIBPATH=`echo $$LIBPATH | sed -e 's/ /:/g'`; \
     LD_LIBRARY_PATH=$$LIBPATH:$$LD_LIBRARY_PATH \
-    $${SHAREDCMD} $${SHAREDFLAGS} \
+    $${SHAREDCMD} $${SHAREDFLAGS} -Wl,-rpath,$(LIBRPATH) \
 	-o $$SHLIB$$SHLIB_SOVER$$SHLIB_SUFFIX \
 	$$ALLSYMSFLAGS $$SHOBJECTS $$NOALLSYMSFLAGS $$LIBDEPS \
   ) && $(SYMLINK_SO)
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<div class='path'>path: <a href='/guix/log/?id=e6b2be5ed7b862fd7890426830c6db42f8d6f9e9'>root</a>/<a href='/guix/log/gnu?id=e6b2be5ed7b862fd7890426830c6db42f8d6f9e9'>gnu</a>/<a href='/guix/log/gnu/packages?id=e6b2be5ed7b862fd7890426830c6db42f8d6f9e9'>packages</a>/<a href='/guix/log/gnu/packages/lsof.scm?id=e6b2be5ed7b862fd7890426830c6db42f8d6f9e9'>lsof.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/lsof.scm?id=e6b2be5ed7b862fd7890426830c6db42f8d6f9e9&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-11-23 05:44:11 +0100'>2020-11-23</span></td><td><a href='/guix/commit/gnu/packages/lsof.scm?id=f942c09b663c3a48a1ae22ae96b69aabc323fd31'>gnu: lsof: Cross-compile.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/lsof.scm (lsof)[arguments]: Use CC-FOR-TARGET.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-11-23 05:44:10 +0100'>2020-11-23</span></td><td><a href='/guix/commit/gnu/packages/lsof.scm?id=2bf502138c9c8cad945866061772fe0e1f4b7175'>gnu: lsof: Make test failures fatal.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/lsof.scm (lsof)[source]: Add patch to make test suite
failures stop the build.
* gnu/packages/patches/lsof-fatal-test-failures.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-11-23 05:44:10 +0100'>2020-11-23</span></td><td><a href='/guix/commit/gnu/packages/lsof.scm?id=70303d073a4f9e9d9fdfa309c6fc350e80b63a60'>gnu: lsof: Respect #:tests?.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/lsof.scm (lsof)[arguments]: The 'check phase takes and
respects a TESTS? keyword.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-11-23 05:44:10 +0100'>2020-11-23</span></td><td><a href='/guix/commit/gnu/packages/lsof.scm?id=518b21e058f9ccf23257a2afe1bbace280c5fe1d'>gnu: lsof: Update to 4.94.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/lsof.scm (lsof): Update to 4.94.0.
[source]: Switch to new git upstream.
[native-inputs]: Add groff.
[arguments]: Remove custom 'unpack phase.  Add a 'build-man-page phase.
Remove the upstreamed glibc@2.28 test fix.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-07-16 20:12:05 +0200'>2020-07-16</span></td><td><a href='/guix/commit/gnu/packages/lsof.scm?id=3720a6f847d5c4bcbbb14953dd19462cad894b8e'>gnu: lsof: Use HTTPS home page.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/lsof.scm (lsof)[home-page]: Use HTTPS.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>