From: Michael Olbrich <m.olbrich@pengutronix.de>
Date: Wed, 25 Apr 2012 07:46:35 +0000 (+0200)
Subject: make sure configure fails if AC_CHECK_ALIGNOF cannot detect the alignment
X-Git-Tag: android-x86-6.0-r1~112
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=a7a1a50d6a8eb8387cce1756f3c38abf36f281b4;p=android-x86%2Fexternal-bluetooth-glib.git

make sure configure fails if AC_CHECK_ALIGNOF cannot detect the alignment

When cross-compiling with gcc >= 4.5 AC_CHECK_ALIGNOF fails to detect the
correct alignment. Without a previous AC_CHECK_TYPE for the same type, the
alignment is silently set to '0'.
This makes sure that configure fails and reports the problem.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>

https://bugzilla.gnome.org/show_bug.cgi?id=674483
---

diff --git a/configure.ac b/configure.ac
index 6a90d233a..2175867d1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3443,10 +3443,13 @@ $ac_cv_sizeof___int64)
   ;;
 esac
 
+AC_CHECK_TYPE([guint32],,,[typedef unsigned $gint32 guint32;])
 AC_CHECK_ALIGNOF([guint32], [AC_INCLUDES_DEFAULT
 typedef unsigned $gint32 guint32;])
+AC_CHECK_TYPE([guint64],,,[typedef unsigned $gint64 guint64;])
 AC_CHECK_ALIGNOF([guint64], [AC_INCLUDES_DEFAULT
 typedef unsigned $gint64 guint64;])
+AC_CHECK_TYPE([unsigned long])
 AC_CHECK_ALIGNOF([unsigned long])
 
 # Check for libdbus1 - Optional - is only used in the GDBus test cases