Keep RPMSENSE_PREREQ definition to be compatible with older
versions. Maybe not needed.

diff -ur ./lib/rpmlib.h ../rpm-4.4.2.orig/lib/rpmlib.h
--- ./lib/rpmlib.h	2006-09-21 21:07:18.000000000 +0200
+++ ../rpm-4.4.2.orig/lib/rpmlib.h	2006-09-21 20:59:00.000000000 +0200
@@ -517,8 +517,7 @@
     RPMSENSE_EQUAL	= (1 << 3),
     RPMSENSE_PROVIDES	= (1 << 4), /* only used internally by builds */
     RPMSENSE_CONFLICTS	= (1 << 5), /* only used internally by builds */
-	/* bit 6 used to be RPMSENSE_PREREQ */
-#define	RPMSENSE_PREREQ	RPMSENSE_ANY
+    RPMSENSE_PREREQ	= (1 << 6), /*!< @todo Legacy. */
     RPMSENSE_OBSOLETES	= (1 << 7), /* only used internally by builds */
     RPMSENSE_INTERP	= (1 << 8),	/*!< Interpreter used by scriptlet. */
     RPMSENSE_SCRIPT_PRE	= ((1 << 9)|RPMSENSE_PREREQ), /*!< %pre dependency. */