Map legacy PreReq into pre and preun scriptlet dependencies in ordering

- this gives close enough semantics for packages that rely on old
  PreReq behavior (eg RHEL 4-5 package set ordering is completely broken
  without such mapping)

diff --git a/lib/depends.c b/lib/depends.c
index b3a5378..4cf914a 100644 (file)
--- a/lib/depends.c
+++ b/lib/depends.c
@@ -827,7 +827,7 @@ static inline int addRelation(rpmts ts,
     relation rel;
     const char * Name;
     rpmElementType teType = rpmteType(p);
-    rpmsenseFlags flags;
+    rpmsenseFlags flags, dsflags;
 
     if ((Name = rpmdsN(requires)) == NULL)
        return 0;
@@ -849,14 +849,21 @@ static inline int addRelation(rpmts ts,
     if (ignoreDep(ts, p, q))
        return 0;
 
+    dsflags = rpmdsFlags(requires);
     /* Erasures are reversed installs. */
     if (teType == TR_REMOVED) {
         rpmte r = p;
         p = q;
         q = r;
-       flags = isErasePreReq(rpmdsFlags(requires));
+       flags = isErasePreReq(dsflags);
     } else {
-       flags = isInstallPreReq(rpmdsFlags(requires));
+       flags = isInstallPreReq(dsflags);
+    }
+
+    /* map legacy prereq to pre/preun as needed */
+    if (isLegacyPreReq(dsflags)) {
+       flags |= (teType == TR_ADDED) ?
+                RPMSENSE_SCRIPT_PRE : RPMSENSE_SCRIPT_PREUN;
     }
 
     tsi_p = rpmteTSI(p);