Bug 1504906 - Build 32-bits Gtk+ 3.10 packages for Debian Wheezy. r=gps

This creates 32-bits variants of the same packages that were added for
64-bits builds, with a few additions:
- python-defaults, so that the python package can be installed as a
  dependency of the libglib2.0-dev package,
- xkeyboard-config, so that the xkb-data package can be installed as a
  dependency of the libxkbcommon0 package.

Additionally, because the 32-bits and 64-bits packages are built
separately (the 32-bits packages can't, on Wheezy, be built on a 64-bits
host), they don't end up with the same
changelog.Debian/changelog.Debian.gz file because of a timestamp within
it. One way to address this would be to make the taskgraph more complex,
by adding a task creating the source package, and then two tasks
building the 32-bits and 64-bits binary packages from that source, but
that's not worth the overhead, when a simple hack works around the
problem: We make dpkg skip installing the changelog.Debian* files.

Differential Revision: https://phabricator.services.mozilla.com/D11140

build/debian-packages/python-defaults-wheezy.diff

@@ -0,0 +1,65 @@
+diff -Nru python-defaults-2.7.3/debian/changelog python-defaults-2.7.3/debian/changelog
+--- python-defaults-2.7.3/debian/changelog	2013-09-29 04:36:47.000000000 +0900
++++ python-defaults-2.7.3/debian/changelog	2018-11-06 18:06:20.000000000 +0900
+@@ -1,3 +1,10 @@
++python-defaults (2.7.3-4.deb7moz1) wheezy; urgency=medium
++
++  * Mozilla backport for Wheezy.
++  * debian/control: Set "Multi-Arch: foreign" on various packages.
++
++ -- Mike Hommey <glandium@debian.org>  Tue, 06 Nov 2018 18:06:20 +0900
++
+ python-defaults (2.7.3-4+deb7u1) stable; urgency=low
+ 
+   * Add symlink for /usr/bin/python2 (Closes: #723182)
+diff -Nru python-defaults-2.7.3/debian/control.in python-defaults-2.7.3/debian/control.in
+--- python-defaults-2.7.3/debian/control.in	2012-07-01 03:36:04.000000000 +0900
++++ python-defaults-2.7.3/debian/control.in	2018-11-06 18:06:20.000000000 +0900
+@@ -12,6 +12,7 @@
+ 
+ Package: python
+ Architecture: all
++Multi-Arch: foreign
+ Priority: standard
+ Depends: ${misc:Depends}, @PVER@ (>= @PREVVER@), python-minimal (= ${binary:Version})
+ Suggests: python-doc (= ${binary:Version}), python-tk (= ${binary:Version})
+@@ -29,6 +30,7 @@
+ 
+ Package: python-minimal
+ Architecture: all
++Multi-Arch: foreign
+ Priority: standard
+ Depends: ${misc:Depends}, @PVER@-minimal (>= @PREVVER@), dpkg (>= 1.13.20)
+ Recommends: python
+@@ -102,6 +104,7 @@
+ 
+ Package: python-dbg
+ Architecture: all
++Multi-Arch: foreign
+ Section: debug
+ Priority: extra
+ Depends: ${misc:Depends}, python (= ${binary:Version}), python@VER@-dbg (>= @PREVVER@)
+@@ -112,6 +115,7 @@
+ 
+ Package: python-all
+ Architecture: all
++Multi-Arch: foreign
+ Depends: ${misc:Depends}, python (= ${binary:Version}), python2.6 (>= 2.6.7-3), python2.7 (>= 2.7.2-3)
+ Description: package depending on all supported Python runtime versions
+  The package currently depends on python2.6 and python2.7, in the future,
+@@ -123,6 +127,7 @@
+ 
+ Package: python-all-dev
+ Architecture: all
++Multi-Arch: foreign
+ Depends: ${misc:Depends}, python (= ${binary:Version}), python-all (= ${binary:Version}), python-dev (= ${binary:Version}), python2.6-dev (>= 2.6.5-2), python2.7-dev (>= 2.7-7)
+ Description: package depending on all supported Python development packages
+  The package currently depends on python2.6-dev and python2.7-dev, in the
+@@ -134,6 +139,7 @@
+ 
+ Package: python-all-dbg
+ Architecture: all
++Multi-Arch: foreign
+ Section: debug
+ Priority: extra
+ Depends: ${misc:Depends}, python (= ${binary:Version}), python-all (= ${binary:Version}), python-dbg (= ${binary:Version}), python2.6-dbg (>= 2.6.5-2), python2.7-dbg (>= 2.7-7)

build/debian-packages/xkeyboard-config-wheezy.diff

@@ -0,0 +1,25 @@
+diff -u xkeyboard-config-2.5.1/debian/control xkeyboard-config-2.5.1/debian/control
+--- xkeyboard-config-2.5.1/debian/control
++++ xkeyboard-config-2.5.1/debian/control
+@@ -23,6 +23,7 @@
+ Depends: ${misc:Depends}
+ Breaks: libx11-6 (<< 2:1.4.3)
+ Architecture: all
++Multi-Arch: foreign
+ Description: X Keyboard Extension (XKB) configuration data
+  This package contains configuration data used by the X Keyboard
+  Extension (XKB), which allows selection of keyboard layouts when
+diff -u xkeyboard-config-2.5.1/debian/changelog xkeyboard-config-2.5.1/debian/changelog
+--- xkeyboard-config-2.5.1/debian/changelog
++++ xkeyboard-config-2.5.1/debian/changelog
+@@ -1,3 +1,10 @@
++xkeyboard-config (2.5.1-3.deb7moz1) wheezy; urgency=medium
++
++  * Mozilla backport for Wheezy.
++  * Mark xkb-data as "Multi-Arch: foreign".
++
++ -- Mike Hommey <glandium@mozilla.com>  Tue, 06 Nov 2018 17:13:52 +0900
++
+ xkeyboard-config (2.5.1-3) unstable; urgency=low
+ 
+   * Cherry-picks from upstream:

taskcluster/ci/config.yml

@@ -61,6 +61,7 @@ treeherder:
         'BMcss': 'Beetmover checksums for source'
         'Aries': 'Aries Device Image'
         'Deb7': 'Packages for Debian 7'
+        'Deb7-32': 'Packages for Debian 7 32-bits'
         'Deb9': 'Packages for Debian 9'
         'Nexus 5-L': 'Nexus 5-L Device Image'
         'I': 'Docker Image Builds'

taskcluster/ci/packages/kind.yml

@@ -61,6 +61,18 @@ jobs:
       patch: python3-defaults-wheezy.diff
       pre-build-command: debian/rules control-file
 
+  deb7-python-defaults:
+    description: "multiarch python-defaults for Debian wheezy"
+    treeherder:
+      symbol: Deb7(python-defaults)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20130930T035642Z/pool/main/p/python-defaults/python-defaults_2.7.3-4+deb7u1.dsc
+        sha256: e12fa64899a025b7ac3bdccd5611ae6f3d23327b695b2938473b1cf68ecc9ae5
+      patch: python-defaults-wheezy.diff
+      pre-build-command: debian/rules control-file
+
   deb7-cmake:
     description: "Cmake backport for Debian wheezy"
     treeherder:
@@ -376,3 +388,135 @@ jobs:
         - deb7-pango
         - deb7-pcre3
         - deb7-wayland
+
+  deb7-32-pcre3:
+    description: "pcre3 8.31 for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(pcre3)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20140424T055217Z/pool/main/p/pcre3/pcre3_8.31-5.dsc
+        sha256: e6e92af1e9f4b1d286ce9e7fdb6cb2f0972a341a94f5631e0b8c31b9f79633a4
+      arch: i386
+
+  deb7-32-atk:
+    description: "atk 2.8 for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(atk)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20130510T040301Z/pool/main/a/atk1.0/atk1.0_2.8.0-2.dsc
+        sha256: cae824b2a5ef47704fb820c04b5b7ee234329d9ddda1086bf487e12d58b9f70c
+      arch: i386
+
+  deb7-32-glib:
+    description: "glib 2.38 for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(glib)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20140215T160944Z/pool/main/g/glib2.0/glib2.0_2.38.2-5.dsc
+        sha256: 1d81952a9a46a935d35d723f7528bf8d5264ef8a59491bad335d134dbeaa2404
+      arch: i386
+      patch: glib-wheezy.diff
+      packages:
+        - deb7-32-pcre3
+
+  deb7-32-harfbuzz:
+    description: "harfbuzz for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(harfbuzz)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20121211T033951Z/pool/main/h/harfbuzz/harfbuzz_0.9.9-1.dsc
+        sha256: 622677a2757a739fb59c8bcd8cde9c1722fac82808248e19ce1cae46620d92bd
+      arch: i386
+
+  deb7-32-gdk-pixbuf:
+    description: "gdk-pixbuf 2.28 for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(gdkpixbuf)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20130608T215552Z/pool/main/g/gdk-pixbuf/gdk-pixbuf_2.28.2-1.dsc
+        sha256: f5057beb54c37293de352c6f253cedd8b144d25289f1fdf1a958f17b51565bcb
+      arch: i386
+      packages:
+        - deb7-32-glib
+        - deb7-32-pcre3
+
+  deb7-32-pango:
+    description: "pango 1.32 for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(pango)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20130224T223605Z/pool/main/p/pango1.0/pango1.0_1.32.5-1.dsc
+        sha256: d9d9b1f797c5dbe70bfe9c7931d63b28437476aa1a737c424c7f072ca6e22914
+      arch: i386
+      packages:
+        - deb7-32-glib
+        - deb7-32-harfbuzz
+        - deb7-32-pcre3
+
+  deb7-32-xkeyboard-config:
+    description: "xkeyboard-config for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(xkbdconfig)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20121225T153644Z/pool/main/x/xkeyboard-config/xkeyboard-config_2.5.1-3.dsc
+        sha256: 327d53dfca4288c7f75471bb01e6d1f161811706b1d8daa01bf9abc269016dc1
+      arch: i386
+      patch: xkeyboard-config-wheezy.diff
+
+  deb7-32-libxkbcommon:
+    description: "libxkbcommon for Debian Wheezy"
+    treeherder:
+      symbol: Deb7-32(xkbc)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20140723T102555Z/pool/main/libx/libxkbcommon/libxkbcommon_0.4.1-2.dsc
+        sha256: 9046dbceda207ed7163b7c12c98399e6d119491a480dc908ae451d7fff0fb77c
+      arch: i386
+
+  deb7-32-wayland:
+    description: "wayland 1.2 for Debian wheezy"
+    treeherder:
+      symbol: Deb7-32(wayland)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20130908T214400Z/pool/main/w/wayland/wayland_1.2.1-1.dsc
+        sha256: 964619747c00c697c95f2739c7980a0a360d79d03eaa3d9a342fed81d86e9466
+      arch: i386
+
+  deb7-32-gtk3:
+    description: "gtk+ 3.10 for Debian wheezy"
+    treeherder:
+      symbol: Deb7-32(gtk3)
+    run:
+      using: debian-package
+      dsc:
+        url: http://snapshot.debian.org/archive/debian/20140215T220417Z/pool/main/g/gtk+3.0/gtk+3.0_3.10.7-1.dsc
+        sha256: 2a6810d44517806940063bb488e49e7177732d8059c798cf0ef94103fefaf0b3
+      arch: i386
+      patch: gtk-wheezy.diff
+      packages:
+        - deb7-32-atk
+        - deb7-32-glib
+        - deb7-32-gdk-pixbuf
+        - deb7-32-harfbuzz
+        - deb7-32-libxkbcommon
+        - deb7-make
+        - deb7-32-pango
+        - deb7-32-pcre3
+        - deb7-32-wayland

taskcluster/docker/debian7-build/Dockerfile

@@ -17,7 +17,12 @@ RUN dpkg --add-architecture $ARCH
 # Ideally, we wouldn't need gcc-multilib and the extra linux-libc-dev,
 # but the latter is required to make the former installable, and the former
 # because of bug 1409276.
+# We exclude /usr/share/doc/*/changelog.Debian* files because they might differ
+# between i386 and amd64 variants of the packages we build on automation
+# because of dates stored in them by debchange (and both might end up installed
+# in some cases).
 RUN apt-get update && \
+    echo path-exclude=/usr/share/doc/*/changelog.Debian* > /etc/dpkg/dpkg.cfg.d/excludes && \
     apt-get install \
       autoconf2.13 \
       automake \