$OpenBSD: patch-configure_ac,v 1.1 2021/02/28 21:01:32 daniel Exp $

Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -31,10 +31,10 @@ else
 	AM_PATH_PYTHON_VERSION(2.5,2.5.0)
 fi
 
-AC_CHECK_PROGS(PYREX, pyrexc)
+AC_CHECK_PROGS(PYREX, cython)
 if test -z "$PYREX"
 then
-	AC_MSG_ERROR([Couldn't find Pyrex])
+	AC_MSG_ERROR([Couldn't find Cython])
 fi
 
 AC_CONFIG_FILES([
