build: Prepare for using installed versions for tests.
* tests/gpgconf.ctl.in: New. * tests/Makefile.am (EXTRA_DIST): Add new file. (TESTINST_DIRS): New. (clean-local): New. (clean-local-testinst): New. (check-recursive): New hook. (bin/gpgconf.ctl): Run a test install. * tests/cms/Makefile.am (TESTS_ENVIRONMENT): Set new envvar GNUPG_BUILD_ROOT. * tests/gpgme/Makefile.am (TESTS_ENVIRONMENT): Ditto. * tests/openpgp/Makefile.am (TESTS_ENVIRONMENT): Ditto. * tests/pkits/Makefile.am (TESTS_ENVIRONMENT): Ditto. * tests/tpm2dtests/Makefile.am (TESTS_ENVIRONMENT): Ditto.
Right now this helps only with the global configuraion dir which is
now not set and thus the build host'ss own /etc/gnupg does not anymore
affect the build.
- Signed-off-by: Werner Koch <wk@gnupg.org>