Bug#868772: ragel: please make the build reproducible

[Sascha Steinbiss]

Package: ragel
Version: 6.9-1.1
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: buildpath environment

Dear maintainer,

while working on the "reproducible builds" effort [1], we have noticed
that ragel could not be built reproducibly [2].

The attached patch removes the Makefile from the installed examples
directory, which would otherwise have contained build-specific
information such as paths or shell choices. Obviously that leaves the
user unable to build the examples out of the box, but from what I can
see this isn't possible anyway, since the Makefile in that directory
assumes to be run out of the original source tree it was configured in
during the package build.
If that is not acceptable, I would be happy to discuss other
alternatives, such as providing a standalone Makefile.

After applying the patch, ragel can be built reproducibly in our current
experimental framework.

Kind regards
Sascha

[1]: https://wiki.debian.org/ReproducibleBuilds
[2]: https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ragel.html
-------------- next part --------------
diff --git a/debian/rules b/debian/rules
index b08131d..6f24b82 100755
--- a/debian/rules
+++ b/debian/rules
@@ -38,6 +38,7 @@ install: build
 	$(MAKE) install DESTDIR=$(CURDIR)/debian/ragel/ 
 	dh_install ragel.vim /usr/share/vim/addons/syntax/
 	dh_install debian/ragel.yaml /usr/share/vim/registry/
+	make -C $(CURDIR)/examples distclean
 
 binary-indep: build install