Bug#893557: thin-provisioning-tools: FTBFS with glibc 2.17

[Steve Langasek]

Package: thin-provisioning-tools
Version: 0.7.4-2
Followup-For: Bug #893557
User: ubuntu-devel at lists.ubuntu.com
Usertags: origin-ubuntu bionic ubuntu-patch

Control: retitle -1 thin-provisioning-tools: FTBFS with -O3
Control: severity -1 minor
Control: tags -1 + patch

Ok, after some trial and error, I've determined that the reason my earlier
test succeeded was because I had built the test preload.so without the
benefit of dpkg-buildflags, which means -O3, which is used by default for
ppc64el on Ubuntu, was missing from the commandline.

The attached patch supersedes the previous one, and fixes the build failure
on Ubuntu ppc64el.  Please consider including it in Debian as well for
benefit of anyone who happens to be using -O3 in dpkg-buildflags (not
actually relevant in the distro case in Debian).

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
-------------- next part --------------
diff -Nru thin-provisioning-tools-0.7.4/debian/control thin-provisioning-tools-0.7.4/debian/control
--- thin-provisioning-tools-0.7.4/debian/control	2017-11-01 14:50:39.000000000 -0700
+++ thin-provisioning-tools-0.7.4/debian/control	2018-03-19 15:31:50.000000000 -0700
@@ -1,8 +1,7 @@
 Source: thin-provisioning-tools
 Section: admin
 Priority: optional
-Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
-XSBC-Original-Maintainer: Debian LVM Team <pkg-lvm-maintainers at lists.alioth.debian.org>
+Maintainer: Debian LVM Team <pkg-lvm-maintainers at lists.alioth.debian.org>
 Uploaders: Bastian Blank <waldi at debian.org>
 Build-Depends:
  debhelper (>= 9),
diff -Nru thin-provisioning-tools-0.7.4/debian/rules thin-provisioning-tools-0.7.4/debian/rules
--- thin-provisioning-tools-0.7.4/debian/rules	2017-11-01 14:50:39.000000000 -0700
+++ thin-provisioning-tools-0.7.4/debian/rules	2018-03-19 15:30:07.000000000 -0700
@@ -15,7 +15,9 @@
 		--with-optimisation=-O2
 
 override_dh_auto_test:
-	$(MAKE) -C debian/unit-tests all
+	$(MAKE) -C debian/unit-tests all \
+		CFLAGS="$$(env DEB_CFLAGS_MAINT_STRIP=-O3 \
+			dpkg-buildflags --get CFLAGS)"
 	+LD_PRELOAD=$(CURDIR)/debian/unit-tests/preload.so $(MAKE) unit-test GMOCK_DIR=/usr/src/googletest
 
 override_dh_auto_clean: