Bug#831903: libterralib: please make the build reproducible

[Dhole]

Source: libterralib
Version: 4.3.0+dfsg.2-8
Severity: wishlist
Tags: patch
User: reproducible-builds at lists.alioth.debian.org
Usertags: locale
X-Debbugs-Cc: reproducible-builds at lists.alioth.debian.org

Hi,

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

Files and file contents are sorted differently depending on the locale.

The attached patch fixes this by setting LC_ALL (instead of LC_COLLATE)
to C. Once applied, libterralib can be built reproducibly in our current
experimental framework.

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

Regards,
Dhole
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diff -Nru libterralib-4.3.0+dfsg.2/debian/changelog libterralib-4.3.0+dfsg.2/debian/changelog
--- libterralib-4.3.0+dfsg.2/debian/changelog	2016-07-14 18:39:09.000000000 +0200
+++ libterralib-4.3.0+dfsg.2/debian/changelog	2016-07-20 16:36:42.000000000 +0200
@@ -1,3 +1,10 @@
+libterralib (4.3.0+dfsg.2-8.1) UNRELEASED; urgency=medium
+
+  * Non-maintainer upload.
+  * Set C locale when archiving object files to get a deterministic order. 
+
+ -- Eduard Sanou <dhole at openmailbox.org>  Wed, 20 Jul 2016 16:36:02 +0200
+
 libterralib (4.3.0+dfsg.2-8) unstable; urgency=medium
 
   * Fix for ::isnan change for G++ 5.4, 6.1. Closes: #830463
diff -Nru libterralib-4.3.0+dfsg.2/debian/rules libterralib-4.3.0+dfsg.2/debian/rules
--- libterralib-4.3.0+dfsg.2/debian/rules	2016-07-14 17:58:37.000000000 +0200
+++ libterralib-4.3.0+dfsg.2/debian/rules	2016-07-20 18:35:36.000000000 +0200
@@ -33,7 +33,7 @@
 	#	( cd build/qt/$$d  && qmake QMAKE_CXXFLAGS=$(CXXFLAGS) $$d.pro     && $(MAKE) ) ; \
 	#	done
 	for d in terralib te_functions te_utils terralibpdi shapelib te_shapelib te_mysql te_postgresql te_dxf stat ; do \
-		ar rcs Release/lib$$d.a Release/linux-g++/obj/$$d/*.o ;\
+		ar rcs Release/lib$$d.a `LC_ALL=C ls Release/linux-g++/obj/$$d/*.o` ;\
 		done
 
 override_dh_clean:
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