xfsdump doesn't compile: undefined reference to 'min'

[Detlef Vollmann <dv@xxxxxxxxxxx>]

> commit 5a2985233c390d59d2a9757b119cb0e001c87a96
> Author: Dave Chinner <dchinner@xxxxxxxxxx>
> Date:   Fri Jul 18 08:02:26 2014 +1000
>
>     dump: don't redefine min() or max()
>
>     They are included from other header files.
The message doesn't say from which header and configure doesn't test
for it.
If I compile it (cross-compilation, gcc, uclibc, xfsprogs 3.1.11,
xfsdump 3.1.4), I get lots of errors:
warning: implicit declaration of function 'max'
undefined reference to 'min'

Attached is a pragmatic patch.

  Detlef

PS: I'm not on the list.

001-minmax.patch
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