build: With LD_LIBRARY_PATH defined, use --disable-new-dtags.
* configure.ac (LDADD_FOR_TESTS_KLUDGE): New for --disable-new-dtags. * tests/Makefile.am (LDADD): Use LDADD_FOR_TESTS_KLUDGE.
- GnuPG-bug-id: T4298
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>