configure: make _check_session_keys work with an as-needed linker

When using a promiscuous linker, _check_session_keys was working fine.

But some OSes (including some versions of Ubuntu) have set their
linker to always link in "--as-needed" mode, which means that the
order of the objects linked is relevant.  If a library is loaded
before it is needed, that library will no longer be linked in the
final outcome.  _check_session_keys.c was failing on those systems.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
This commit is contained in:
Daniel Kahn Gillmor 2019-05-20 16:52:01 -04:00 committed by David Bremner
parent 0def7b6860
commit 2669117ad7

2
configure vendored
View file

@ -532,7 +532,7 @@ EOF
if ! TEMP_GPG=$(mktemp -d); then
printf 'No.\nCould not make tempdir for testing session-key support.\n'
errors=$((errors + 1))
elif ${CC} ${CFLAGS} ${gmime_cflags} ${gmime_ldflags} _check_session_keys.c -o _check_session_keys \
elif ${CC} ${CFLAGS} ${gmime_cflags} _check_session_keys.c ${gmime_ldflags} -o _check_session_keys \
&& GNUPGHOME=${TEMP_GPG} gpg --batch --quiet --import < test/gnupg-secret-key.asc \
&& SESSION_KEY=$(GNUPGHOME=${TEMP_GPG} ./_check_session_keys) \
&& [ $SESSION_KEY = 9:0BACD64099D1468AB07C796F0C0AC4851948A658A15B34E803865E9FC635F2F5 ]