diff -pruN gst-plugins-base-0.10.21.orig/configure.ac gst-plugins-base-0.10.21/configure.ac
--- gst-plugins-base-0.10.21.orig/configure.ac	2008-10-05 11:30:27.716218752 +0000
+++ gst-plugins-base-0.10.21/configure.ac	2008-10-05 11:32:13.183093033 +0000
@@ -509,7 +509,7 @@ translit(dnm, m, l) AM_CONDITIONAL(USE_T
 AG_GST_CHECK_FEATURE(THEORA, [Xiph Theora video codec], theora, [
   dnl this check will work as long as theora uses 1.0.x or similar for the
   dnl first post-alpha release and not just 1.0
-  AG_GST_PKG_CHECK_MODULES(THEORA, theora >= 1.0alpha5)
+  AG_GST_PKG_CHECK_MODULES(THEORA, theora >= 1.0RC1)
 ])
 
 dnl *** vorbis ***