Index: head/comms/birda/Makefile
===================================================================
--- head/comms/birda/Makefile
+++ head/comms/birda/Makefile
@@ -11,6 +11,9 @@
 
 USES=		uidfix
 
+# XXX Static libraries with PIE are currently unsupported.
+MAKE_ENV+=	WITHOUT_PIE=true
+
 # Fix build with clang11
 CFLAGS+=	-fcommon