[gegl] ff-load: bump libavformat version dependency

[Ãyvind KolÃs <ok src gnome org>]

commit f5116cb4a0c330fc8427109d629d297e35b0bb50
Author: Ãyvind KolÃs <pippin gimp org>
Date:   Mon Feb 4 18:01:28 2013 +1100

    ff-load: bump libavformat version dependency
    
    Just a random guess at a major API version number that we might be dependant
    upon.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7c723e6..c132b0b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -886,7 +886,7 @@ AC_SUBST(LUA_LIBS)
 AC_ARG_WITH(libavformat,  [  --without-libavformat   build without libavformat support])
 
 if test "x$with_libavformat" != xno; then
-  PKG_CHECK_MODULES(AVFORMAT, libavformat libavcodec,
+  PKG_CHECK_MODULES(AVFORMAT, libavformat >= 53.0.0 libavcodec >= 53.0.0,
     have_libavformat="yes",
     have_libavformat="no  (libavformat not found)")
   # verify the presence of the avformat.h header