Symlink libreaddir-rand.so into tests directory

This means it can be LD_PRELOADed during build-time testing.

Signed-off-by: Simon McVittie <smcv@debian.org>

Closes: #232
Approved by: cgwalters

.gitignore

@@ -70,6 +70,7 @@ _build
 /test-remote-add.test
 /test-setuid.test
 /test-xattrs.test
+/tests/libreaddir-rand.so
 test-varint
 test*.test
 *.trs

Makefile-decls.am

@@ -49,3 +49,6 @@ GITIGNOREFILES =
 # This is a special facility to chain together hooks easily
 INSTALL_DATA_HOOKS =
 install-data-hook: $(INSTALL_DATA_HOOKS)
+
+ALL_LOCAL_RULES =
+all-local: $(ALL_LOCAL_RULES)

Makefile-tests.am

@@ -216,6 +216,10 @@ EXTRA_DIST += \
 	tests/gpg-verify-data/trustdb.gpg \
 	tests/gpg-verify-data/gpg.conf
 
+tests-libreaddir-rand-so-symlink:
+	ln -fns ../.libs/libreaddir-rand.so tests
+ALL_LOCAL_RULES += tests-libreaddir-rand-so-symlink
+
 # Unfortunately the glib test data APIs don't actually handle
 # non-recursive Automake, so we change our code to canonically look
 # for tests/ which is just a symlink when installed.