Fix a build with cmake 2.6.4. The patch is borrowed from Gentoo bugzilla:

http://bugs.gentoo.org/show_bug.cgi?id=268618

multimedia/avidemux/distinfo

@@ -1,10 +1,11 @@
-$NetBSD: distinfo,v 1.19 2009/02/24 16:09:39 wiz Exp $
+$NetBSD: distinfo,v 1.20 2009/06/07 11:49:25 hasso Exp $
 
 SHA1 (avidemux_2.4.4.tar.gz) = c50a00caf13a8ea1053e5994edeb59354192e18e
 RMD160 (avidemux_2.4.4.tar.gz) = 8bb2705b3e2d5379d833ec4fa06a01b897c06e04
 Size (avidemux_2.4.4.tar.gz) = 6894690 bytes
 SHA1 (patch-aa) = f29870ecca511e28ef3bb873026f0bf2421ebc5e
 SHA1 (patch-ab) = 7d0849c2acdd48a5f02738005b17b2b74456e521
+SHA1 (patch-ac) = 268a7df2ac824ebf6413407a235cfd20707f3958
 SHA1 (patch-as) = 9d8edeac752b0e08cec7b37e9357ec49d259b5d6
 SHA1 (patch-at) = 3b31ca6eaddbaffa37d05eee1f889b2d8b73407b
 SHA1 (patch-au) = af3179c26a298dd2c14025db891b8a10ac89fd9a

multimedia/avidemux/patches/patch-ac

@@ -0,0 +1,40 @@
+$NetBSD: patch-ac,v 1.7 2009/06/07 11:49:25 hasso Exp $
+
+Fix a build with cmake 2.6.4. The patch is borrowed from Gentoo bugzilla:
+http://bugs.gentoo.org/show_bug.cgi?id=268618
+
+--- avidemux/CMakeLists.txt.orig	2008-10-03 14:05:09 +0300
++++ avidemux/CMakeLists.txt	2009-06-07 13:52:15 +0300
+@@ -84,7 +84,6 @@ ADM_audiocodec 
+ ADM_audio
+ ADM_script 
+ ADM_videoFilter
+-ADM_filter
+ ADM_video 
+ ADM_audiodevice
+ ADM_ocr  
+@@ -93,6 +92,24 @@ ADM_colorspace 
+ 
+ FOREACH(_current ${ADM_SUBDIR})
+ 	ADD_SUBDIRECTORY(${_current})
++ENDFOREACH(_current ${ADM_SUBDIR})
++
++SET(ADM_SUBDIR 
++ADM_filter
++ADM_audiofilter 
++ADM_editor
++ADM_audiocodec 
++ADM_audio
++ADM_script 
++ADM_videoFilter
++ADM_filter
++ADM_video 
++ADM_audiodevice
++ADM_ocr  
++ADM_colorspace 
++)
++
++FOREACH(_current ${ADM_SUBDIR})
+ 	add_libs_all_targets(${_current})
+ ENDFOREACH(_current ${ADM_SUBDIR})
+