Add a patch to link libreaddir-rand to libdl

This should fix test failures on Ubuntu (Closes: #826857)

debian/changelog

@@ -8,6 +8,8 @@ ostree (2016.5-4) UNRELEASED; urgency=medium
     up any stray processes even if the test fails
   * If build-time tests fail, try 4 more times to get an idea of
     whether the failure is reproducible
+  * Add a patch to link libreaddir-rand to libdl, which should fix
+    test failures on Ubuntu (Closes: #826857)
 
  -- Simon McVittie <smcv@debian.org>  Sat, 11 Jun 2016 19:52:40 +0100
 

debian/patches/Link-libreaddir-rand-to-libdl.patch

@@ -0,0 +1,32 @@
+From: Simon McVittie <smcv@debian.org>
+Date: Sun, 12 Jun 2016 10:25:21 -0400
+Subject: Link libreaddir-rand to libdl
+
+It uses dlsym(). There's no point in being extra-portable here
+because OSTree only targets Linux anyway.
+
+Signed-off-by: Simon McVittie <smcv@debian.org>
+
+Closes: #336
+Approved by: cgwalters
+Applied-upstream: 2016.6, commit:b9e18b83fd195c980c5dffab4bedf3fa79b19a2e
+---
+ Makefile-tests.am | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile-tests.am b/Makefile-tests.am
+index b3d7514..c7e78cf 100644
+--- a/Makefile-tests.am
++++ b/Makefile-tests.am
+@@ -130,7 +130,10 @@ endif
+ test_ltlibraries = libreaddir-rand.la
+ libreaddir_rand_la_SOURCES = tests/readdir-rand.c
+ libreaddir_rand_la_CFLAGS = $(OT_INTERNAL_GIO_UNIX_CFLAGS)
+-libreaddir_rand_la_LIBADD = $(OT_INTERNAL_GIO_UNIX_LIBS)
++libreaddir_rand_la_LIBADD = \
++	-ldl \
++	$(OT_INTERNAL_GIO_UNIX_LIBS) \
++	$(NULL)
+ libreaddir_rand_la_LDFLAGS = -avoid-version
+ if !ENABLE_INSTALLED_TESTS
+ libreaddir_rand_la_LDFLAGS += -rpath $(abs_builddir)

debian/patches/series

@@ -2,3 +2,4 @@ libtest-show-files-contents-when-assertions-about-them-fa.patch
 test-parent-this-test-requires-user-xattrs.patch
 tests-Use-strict-mode-by-default-for-C-tests.patch
 test-sysroot.js-set-strict-mode-when-sourcing-libtest.sh.patch
+Link-libreaddir-rand-to-libdl.patch