[Reproducible-builds] Bug#825545: dwm: please make the build reproducible

[Reiner Herrmann]

Source: dwm
Version: 0.4.2-2
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: fileordering
X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org

Hi!

While working on the "reproducible builds" effort [1], we have noticed
that dwm could not be built reproducibly.
During build it is looking for header files, but they are processed in
an undeterministic (readdir) order.

The attached patch fixes this by sorting the files.

Regards,
 Reiner

[1]: https://wiki.debian.org/ReproducibleBuilds
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