Some more fseeko checks.

Original commit message from CVS:
* configure.ac:
* gst/playback/gstqueue2.c: (gst_queue_create_read):
Some more fseeko checks.
diff --git a/configure.ac b/configure.ac
index 5f08007..3b45c7d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -230,6 +230,9 @@
 
 dnl *** checks for library functions ***
 
+dnl check for fseeko()
+AC_FUNC_FSEEKO
+
 dnl Check for fast float to int casting as defined in C99
 dnl used in gst-libs/gst/floatcast/floatcast.h
 AC_C99_FUNC_LRINT