--- a/gnupg-2.2.34-r1.ebuild	2022-03-23 01:39:49.000000000 +0100
+++ a/gnupg-2.2.34-r1.ebuild	2022-04-03 08:04:17.000000000 +0200
@@ -79,7 +79,7 @@ src_configure() {
 		$(use_enable wks-server wks-tools)
 		$(use_with ldap)
 		$(use_with readline)
-		--with-mailprog=/usr/libexec/sendmail
+		--with-mailprog=$(usex wks-server)
 		--disable-ntbtls
 		--enable-all-tests
 		--enable-gpg