4.4.9 -> 4.5:
+	- jbj: add a relation to to force install-before-erase.
+	- jbj: display dependency loops as an error for now.
 	- glen: do not skip %clean from spec file
 	- robert: install rpmdeps and debugedit to pkglibdir as on HEAD
 	- jbj: fix: python ts.hdrFromFdno(fdno) segfault.
--- rpm-5.4.16/lib/order.c~	2016-03-16 00:20:19.000000000 +0200
+++ rpm-5.4.16/lib/order.c	2016-03-16 00:20:57.082078559 +0200
@@ -1631,7 +1631,7 @@
 	    (void) orgrpmAddRelation(ts, al, p, requires);
 	}
 
-#ifdef	NOTYET
+#if defined(RPM_VENDOR_PLD)
 	/* Ensure that erasures follow installs during upgrades. */
       if (rpmteType(p) == TR_REMOVED && p->flink.Pkgid && p->flink.Pkgid[0]) {
 	rpmtsi qi;
@@ -1652,7 +1652,7 @@
 	}
 	qi = rpmtsiFree(qi);
       }
-#endif	/* NOTYET */
+#endif
 
 #ifdef	NOTYET
 	/* Order by requiring parent directories as prerequisites. */
@@ -2182,7 +2182,7 @@
 		const char * dp;
 		rpmlogLvl msglvl = (anaconda || (rpmtsDFlags(ts) & RPMDEPS_FLAG_DEPLOOPS))
 			? RPMLOG_WARNING : RPMLOG_ERR;
-#if defined(RPM_VENDOR_MANDRIVA) || defined(RPM_VENDOR_OE) /* loop-detection-optional-loglevel */
+#if defined(RPM_VENDOR_MANDRIVA) || defined(RPM_VENDOR_OE) || defined(RPM_VENDOR_PLD) /* loop-detection-optional-loglevel */
 		// Report loops as debug-level message by default (7 = RPMLOG_DEBUG), overridable
 		msglvl = rpmExpandNumeric("%{?_loop_detection_loglevel}%{?!_loop_detection_loglevel:7}");
 #endif