package-$(BR2_PACKAGE_PPP) += ppp
package-$(BR2_PACKAGE_PPTP) += pptp
package-$(BR2_PACKAGE_PPTPD) += pptpd
+package-$(BR2_PACKAGE_SER) += ser
package-$(BR2_PACKAGE_STRACE) += strace
package-$(BR2_PACKAGE_TCPDUMP) += tcpdump
package-$(BR2_PACKAGE_ZLIB) += zlib