vsftp: enable and fix linking

Patch by Wade Berrier.

It still errors out on sysdeputil.c for me, but this is no worse than
it was before, so committing.

package/Config.in

@@ -227,6 +227,7 @@ source "package/ttcp/Config.in"
 #endif
 source "package/udpcast/Config.in"
 source "package/vpnc/Config.in"
+source "package/vsftpd/Config.in"
 source "package/vtun/Config.in"
 source "package/webif/Config.in"
 if !BR2_PACKAGE_BUSYBOX_HIDE_OTHERS

package/vsftpd/vsftpd.mk

@@ -9,9 +9,13 @@ VSFTPD_SITE:=ftp://vsftpd.beasts.org/users/cevans
 VSFTPD_DIR:=$(BUILD_DIR)/vsftpd-$(VSFTPD_VERSION)
 VSFTPD_CAT:=$(ZCAT)
 VSFTPD_BINARY:=vsftpd
+VSFTPD_TARGET_BINARY:=usr/sbin/vsftpd
 
 ifeq ($(BR2_PACKAGE_OPENSSL),y)
 VSFTPF_PREREQ:=openssl
+VSFTPD_LIBS:=-lcrypt -lssl
+else
+VSFTPD_LIBS:=-lcrypt
 endif
 ifeq ($(BR2_LARGEFILE),)
 #BR2_VSFTPD_CFLAGS:=-U_LARGEFILE64_SOURCE -U_FILE_OFFSET_BITS
@@ -45,7 +49,7 @@ endif
 
 
 $(VSFTPD_DIR)/$(VSFTPD_BINARY): $(VSFTPF_PREREQ) $(VSFTPD_DIR)/.configured
-	$(MAKE) CC=$(TARGET_CC) CFLAGS="$(TARGET_CFLAGS) $(BR2_VSFTPD_CFLAGS)" -C $(VSFTPD_DIR)
+	$(MAKE) CC=$(TARGET_CC) CFLAGS="$(TARGET_CFLAGS) $(BR2_VSFTPD_CFLAGS)" LIBS="$(VSFTPD_LIBS)" -C $(VSFTPD_DIR)
 
 $(TARGET_DIR)/usr/sbin/$(VSFTPD_BINARY): $(VSFTPD_DIR)/$(VSFTPD_BINARY)
 	cp -dpf $< $@