crypto: Allow building with GnuTLS but without Libtasn1
We only use Libtasn1 in unit tests. As noted in commit d47b83b118
("tests: add migration tests of TLS with x509 credentials"), having
GnuTLS without Libtasn1 is a valid configuration, so do not require
Libtasn1, to avoid:
Dependency gnutls found: YES 3.7.1 (cached)
Run-time dependency libtasn1 found: NO (tried pkgconfig)
../meson.build:1914:10: ERROR: Dependency "libtasn1" not found, tried pkgconfig
Fixes: ba7ed407e6 ("configure, meson: convert libtasn1 detection to meson")
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
diff --git a/meson.build b/meson.build
index af9f038..4eca361 100644
--- a/meson.build
+++ b/meson.build
@@ -1979,6 +1979,7 @@
tasn1 = not_found
if gnutls.found()
tasn1 = dependency('libtasn1',
+ required: false,
method: 'pkg-config')
endif
keyutils = not_found
