[Bug 202311] Request exp-run for FORTIFY_SOURCE

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202311

            Bug ID: 202311
           Summary: Request exp-run for FORTIFY_SOURCE
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Ports Framework
          Assignee: portmgr at FreeBSD.org
          Reporter: pfg at FreeBSD.org
                CC: freebsd-ports-bugs at FreeBSD.org

Created attachment 159850
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=159850&action=edit
FORTIFY_SOURCE enabled by default (WIP)

The FORTIFY_SOURCE GSoC 2015 project has advanced enormously and is ready for
testing.

The attached patch integrates the framework and fortifies the base system. An
exp-run in the ports tree may detect two types of issues:

- Any buffer overfow in the base system will cause the utility to stop and
report the issue.

- Some ports may define FORTIFY_SOURCE by default: they will grab the headers
and run system checks. Some ports may have linuxisms upon detecting
FORTIFY_SOURCE that would be interesting to find before bringing the framework.

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