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make sure configure fails if AC_CHECK_ALIGNOF cannot detect the alignment

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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
This commit is contained in:
Michael Olbrich 2012-04-25 09:46:35 +02:00 committed by Colin Walters
parent b053f990c9
commit 56bcba11dd
1 changed files with 3 additions and 0 deletions
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3
configure.ac
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@ -3448,10 +3448,13 @@ $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