The net-snmp public headers are generated by autoconf
so they also define PACKAGE_URL (and lots more).
Apparently this is completely normal and documented at
http://www.net-snmp.org/tutorial/tutorial-5/toolkit/autoconf/index.html
This reverts commit
e16e805eae42f911a6f9ab81420fcaf1a957810f.
dnl Process this file with autoconf to produce a configure script.
-AC_INIT([collectd],
- [m4_esyscmd(./version-gen.sh)],
- [https://github.com/collectd/collectd/issues],
- [collectd],
- [https://collectd.org])
+AC_INIT([collectd],[m4_esyscmd(./version-gen.sh)])
AC_CONFIG_SRCDIR(src/)
AC_CONFIG_HEADERS(src/config.h)
AC_CONFIG_AUX_DIR([libltdl/config])