diff -urN poldek-0.18.6.org/pkgset-install.c poldek-0.18.6/pkgset-install.c
--- poldek-0.18.6.org/pkgset-install.c	2004-08-27 23:45:01.761428320 +0200
+++ poldek-0.18.6/pkgset-install.c	2004-08-27 23:47:40.965225664 +0200
@@ -319,7 +319,7 @@
     int *ncnfls, i, j, i_best, cnfl_min;
     int i_ver_eq = -1, i_evr_eq = -1;
 
-    DBGF("%s (%d)\n", pkg_snprintf_s(marker), npkgs);
+    DBGF("marker=%s (%d)\n", marker ? pkg_snprintf_s(marker) : "nil", npkgs);
     n_assert(npkgs > 0);
     if (npkgs == 1)
         return 0;
@@ -332,10 +332,10 @@
         struct pkg *pkg = candidates[i];
 
         DBGF("%d. %s %s (color white %d, marked %d, %p)\n", i, 
-             pkg_snprintf_s(marker), pkg_snprintf_s0(pkg),
+             marker ? pkg_snprintf_s(marker) : "nil", pkg_snprintf_s0(pkg),
              pkg_is_color(pkg, PKG_COLOR_WHITE), pkg_is_marked(pkg), pkg);
 
-        if (pkg_eq_name_prefix(marker, pkg)) {
+        if (marker && pkg_eq_name_prefix(marker, pkg)) {
             if (i_evr_eq == -1 && pkg_cmp_evr(marker, pkg) == 0)
                 i_evr_eq = i;
             
@@ -758,8 +758,8 @@
         for (i=0; i < n_array_size(db_dep->pkgs); i++) {
             struct pkg *p = n_array_nth(db_dep->pkgs, i);
         
-            snprintf(&errmsg[n], sizeof(errmsg) - n, "%s %s",
-                     pkg_is_installed(p) ? "" : " already marked", 
+            snprintf(&errmsg[n], sizeof(errmsg) - n, "%s%s",
+                     pkg_is_installed(p) ? "" : " already marked ", 
                      pkg_snprintf_s(p));
             
             logn(LOGERR, "%s", errmsg);
@@ -1137,10 +1137,9 @@
                 n = upg->inst->askpkg_fn(capreq_snprintf_s(req),
                                          tomark_candidates, tomark);
                 real_tomark = tomark_candidates[n];
-            }
-            
             free(tomark_candidates);
             tomark_candidates = NULL;
+            }
             
             if (marked_for_removal_by_req(real_tomark, req, upg)) {
                 logn(LOGERR, _("%s (cap %s) is required by %s%s"),
@@ -1177,6 +1176,7 @@
                 } else {
                     p = select_successor(pkg, ps, upg, &by_obsoletes);
                 }
+                
 #if 0           /* code "moved" above cause to aggresive_greedy */
                 p = select_pkg(pkg->name, ps->pkgs, upg);
                 if (p == NULL && (upg->inst->flags & INSTS_OBSOLETES)) {