[FFmpeg-cvslog] r21522 - trunk/configure

[mru]

Author: mru
Date: Fri Jan 29 04:26:12 2010
New Revision: 21522

Log:
Check for may_alias gcc attribute support

Modified:
   trunk/configure

Modified: trunk/configure
==============================================================================
--- trunk/configure	Fri Jan 29 00:49:46 2010	(r21521)
+++ trunk/configure	Fri Jan 29 04:26:12 2010	(r21522)
@@ -985,6 +985,7 @@ HAVE_LIST="
     alsa_asoundlib_h
     altivec_h
     arpa_inet_h
+    attribute_may_alias
     attribute_packed
     bswap
     closesocket
@@ -2298,6 +2299,10 @@ check_cc <<EOF && enable attribute_packe
 struct { int x; } __attribute__((packed)) x;
 EOF
 
+check_cc <<EOF && enable attribute_may_alias
+union { int x; } __attribute__((may_alias)) x;
+EOF
+
 check_cc <<EOF || die "endian test failed"
 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
 EOF