ci: enable DNS over TLS using OpenSSL in the build test

Prompted by:
    * https://github.com/systemd/systemd/pull/18641#issuecomment-780371055
    * https://github.com/systemd/systemd/issues/18639

diff --git a/.github/workflows/build_test.sh b/.github/workflows/build_test.sh
index 2f3646e7ed09e96bdcb24df55f4b065d2e92e1c2..fc3d6c096e28656657f7bef45dba58e9c31bc5bb 100755 (executable)
--- a/.github/workflows/build_test.sh
+++ b/.github/workflows/build_test.sh
@@ -12,6 +12,7 @@ ARGS=(
     "--optimization=s"
     "--optimization=3 -Db_lto=true"
     "--optimization=3 -Db_lto=false"
+    "--optimization=3 -Ddns-over-tls=openssl"
     "-Db_ndebug=true"
 )
 PACKAGES=(