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Subject: [Bug 208757] games/edge: Fix build with libc++ 3.8.0
Date: Tue, 12 Apr 2016 20:12:10 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D208757

            Bug ID: 208757
           Summary: games/edge: Fix build with libc++ 3.8.0
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: freebsd-ports-bugs@FreeBSD.org
          Reporter: dim@FreeBSD.org

Created attachment 169260
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D169260&action=
=3Dedit
Replace abs() on unsigned arguments in games/edge

During the exp-run in bug 208158, it was found that games/edge gives errors
with libc++ 3.8.0 [1]:

epi/image_hq2x.cc:178:13: error: call to 'abs' is ambiguous
                   (u32_t)abs((YUV1 & Ymask) - (YUV2 & Ymask)) > trY ||
                          ^~~

This is because abs() is being called with unsigned arguments.  Fix this by
calculating the unsigned difference in a more portable way.

[1]
http://package18.nyi.freebsd.org/data/headamd64PR208158-default/2016-03-22_=
18h30m05s/logs/errors/edge-1.35_6.log

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