--- ldap/xpcom/src/Makefile.in.orig	2012-03-12 10:25:35.000000000 +0100
+++ ldap/xpcom/src/Makefile.in	2012-03-12 10:26:09.000000000 +0100
@@ -89,6 +89,10 @@
 		$(NULL)
 endif
 
+ifeq ($(OS_ARCH), FreeBSD)
+EXTRA_LIBS = -L$(dist_libdir) -l$(LBER_LIBNAME) -lpthread
+endif
+
 EXTRA_DSO_LDOPTS += $(LDAP_LIBS)
 ifndef MOZ_INCOMPLETE_EXTERNAL_LINKAGE
 EXTRA_DSO_LDOPTS += $(MOZ_COMPONENT_LIBS)