package-$(BR2_PACKAGE_LIBPCAP) += libpcap
package-$(BR2_PACKAGE_LIBPNG) += libpng
package-$(BR2_PACKAGE_LIBPTHREAD) += libpthread
package-$(BR2_PACKAGE_LIBPCAP) += libpcap
package-$(BR2_PACKAGE_LIBPNG) += libpng
package-$(BR2_PACKAGE_LIBPTHREAD) += libpthread