[mingw-glib2] Add a patch to fix alignment tests when cross compiling

[Kalev Lember]

commit 2bc7b7c718c92569f1ca3c0d801185d8daab9565
Author: Kalev Lember <kalevlember at gmail.com>
Date:   Wed Mar 28 13:21:49 2012 +0300

    Add a patch to fix alignment tests when cross compiling

 ...-Fix-alignment-tests-when-cross-compiling.patch |   35 ++++++++++++++++++++
 mingw-glib2.spec                                   |   12 ++++++-
 2 files changed, 46 insertions(+), 1 deletions(-)
---
diff --git a/0001-configure-Fix-alignment-tests-when-cross-compiling.patch b/0001-configure-Fix-alignment-tests-when-cross-compiling.patch
new file mode 100644
index 0000000..08b8df0
--- /dev/null
+++ b/0001-configure-Fix-alignment-tests-when-cross-compiling.patch
@@ -0,0 +1,35 @@
+From 8f8fc836709cff58bd666b87937542088cfc19db Mon Sep 17 00:00:00 2001
+From: Kalev Lember <kalevlember at gmail.com>
+Date: Wed, 28 Mar 2012 12:42:49 +0300
+Subject: [PATCH] configure: Fix alignment tests when cross compiling
+
+When inserting custom code to AC_CHECK_ALIGNOF, make sure to not replace
+the default includes, but instead append to them.
+
+This fixes ALIGNOF_GUINT32 and ALIGNOF_GUINT64 that were both 0 when cross
+compiling. The third 'unsigned long' test wasn't affected because the
+AC_CHECK_ALIGNOF call didn't specify the optional 2nd parameter.
+---
+ configure.ac |    6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 0d30b3e..82d74c6 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -3405,8 +3405,10 @@ $ac_cv_sizeof___int64)
+   ;;
+ esac
+ 
+-AC_CHECK_ALIGNOF([guint32], [typedef unsigned $gint32 guint32;])
+-AC_CHECK_ALIGNOF([guint64], typedef unsigned $gint64 guint64;)
++AC_CHECK_ALIGNOF([guint32], [AC_INCLUDES_DEFAULT
++typedef unsigned $gint32 guint32;])
++AC_CHECK_ALIGNOF([guint64], [AC_INCLUDES_DEFAULT
++typedef unsigned $gint64 guint64;])
+ AC_CHECK_ALIGNOF([unsigned long])
+ 
+ # Check for libdbus1 - Optional - is only used in the GDBus test cases
+-- 
+1.7.9.3
+
diff --git a/mingw-glib2.spec b/mingw-glib2.spec
index 4545ae7..4f7430b 100644
--- a/mingw-glib2.spec
+++ b/mingw-glib2.spec
@@ -2,7 +2,7 @@
 
 Name:           mingw-glib2
 Version:        2.32.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        MinGW Windows GLib2 library
 
 License:        LGPLv2+
@@ -11,6 +11,8 @@ URL:            http://www.gtk.org
 # first two digits of version
 %define release_version %(echo %{version} | awk -F. '{print $1"."$2}')
 Source0:        http://download.gnome.org/sources/glib/%{release_version}/glib-%{version}.tar.xz
+# Already upstreamed
+Patch0:         0001-configure-Fix-alignment-tests-when-cross-compiling.patch
 
 BuildArch:      noarch
 
@@ -35,6 +37,9 @@ BuildRequires:  gettext
 # Native version required for glib-genmarshal
 BuildRequires:  glib2-devel >= 2.31.20
 
+# Needed for the patch
+BuildRequires:  autoconf automake libtool
+
 %description
 MinGW Windows Glib2 library.
 
@@ -74,6 +79,8 @@ Static version of the MinGW Windows GLib2 library.
 
 %prep
 %setup -q -n glib-%{version}
+%patch0 -p1 -b .alignof
+autoreconf -i --force
 
 
 %build
@@ -252,6 +259,9 @@ find $RPM_BUILD_ROOT -name "*.la" -delete
 
 
 %changelog
+* Wed Mar 28 2012 Kalev Lember <kalevlember at gmail.com> - 2.32.0-2
+- Add a patch to fix alignment tests when cross compiling
+
 * Mon Mar 26 2012 Kalev Lember <kalevlember at gmail.com> - 2.32.0-1
 - Update to 2.32.0
 - Dropped upstreamed patch