Bug#819282: wheezy-pu: package openldap/2.4.31-2+deb7u2

[Ryan Tandy <ryan@nardis.ca>]

Package: release.debian.org
Severity: normal
Tags: wheezy
User: release.debian.org@packages.debian.org
Usertags: pu

Hi debian-release,

The last update of openldap in wheezy-security has never built on 
powerpc. I got access to the porterbox and found that the ppc64 kernel 
in jessie (presumably the buildds run the same kernel) uses a 64KB page 
size, while the MDB backend in wheezy only works with 4KB pages.

This limitation has been resolved [ITS#7713] in jessie, but the changes 
are not trivial to backport, and I'm very concerned about regressing all 
arches if I were to make a mistake. Therefore I'm proposing that we 
disable the test suite on powerpc so that the package can build.

I have built the proposed package on wheezy under qemu-system-ppc and 
run the entire test suite to ensure it passes. I also built it on the 
powerpc porterbox, installed the binaries on the qemu VM, and performed 
some additional manual testing. Of course I've also done my usual 
pre-upload testing (on amd64, in a clean wheezy chroot).

Would you consider allowing this change into wheezy?

[ITS#7713]: http://www.openldap.org/its/?findid=7713

-- System Information:
Debian Release: 8.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'proposed-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.3.0-0.bpo.1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

diff -u openldap-2.4.31/debian/rules openldap-2.4.31/debian/rules
--- openldap-2.4.31/debian/rules
+++ openldap-2.4.31/debian/rules
@@ -7,6 +7,12 @@
 export DEB_CFLAGS_MAINT_APPEND := -Wall -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 export DEB_BUILD_MAINT_OPTIONS := hardening=+pie,+bindnow
 
+# Avoid running back-mdb tests on ppc64 builders
+DEB_HOST_ARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)
+ifeq ($(DEB_HOST_ARCH),powerpc)
+	export DEB_BUILD_OPTIONS += nocheck
+endif
+
 # Workaround for bad glibc behavior when resolving localhost
 export RESOLV_MULTI = off
 
diff -u openldap-2.4.31/debian/changelog openldap-2.4.31/debian/changelog
--- openldap-2.4.31/debian/changelog
+++ openldap-2.4.31/debian/changelog
@@ -1,3 +1,10 @@
+openldap (2.4.31-2+deb7u2) wheezy; urgency=medium
+
+  * Disable the test suite on powerpc to work around back-mdb tests failing on 
+    buildds running the jessie ppc64 kernel, which uses 64KB pages. (ITS#7713)
+
+ -- Ryan Tandy <ryan@nardis.ca>  Fri, 25 Mar 2016 11:45:18 -0700
+
 openldap (2.4.31-2+deb7u1) wheezy-security; urgency=high
 
   * Non-maintainer upload by the Security Team.