gpgv links against libassuan but doesn't use it. Patch below is a fix.
diff --git a/g10/Makefile.am b/g10/Makefile.am
index c3e35f6..b47edf7 100644
- a/g10/Makefile.am
+++ b/g10/Makefile.am
@@ -124,7 +124,7 @@ LDADD = $(needed_libs) ../common/libgpgrl.a \
$(LIBINTL) $(CAPLIBS) $(NETLIBS)
gpg2_LDADD = $(LDADD) $(LIBGCRYPT_LIBS) $(LIBASSUAN_LIBS) $(GPG_ERROR_LIBS) \
$(LIBICONV) $(resource_objs)
-gpgv2_LDADD = $(LDADD) $(LIBGCRYPT_LIBS) $(LIBASSUAN_LIBS) $(GPG_ERROR_LIBS) \
+gpgv2_LDADD = $(LDADD) $(LIBGCRYPT_LIBS) $(GPG_ERROR_LIBS) \
$(LIBICONV) $(resource_objs)
t_common_ldadd =