add patch from 1.2.7 to fix recent integer overflow, bump PKGREV
Add settings to make the package build on FreeBSD 10.
FreeBSD 10 is not FreeBSD 1.
One more file installed on FreeBSD 10.
"configure" is a wrapper script around "waf", it is not GNU configure definitly.
Request GNU texinfo as a tool to avoid build failure when it is missing.
configure fails to detect <netinet/ip_icmp.h> presense on FreeBSD 10.
Work around it.