* apt-pkg/pkgcache.cc:

  - ignore implicit conflicts on providers in AllTarget, too

apt-pkg/pkgcache.cc

@@ -636,11 +636,18 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
       {
 	 if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false)
 	    continue;
-	 
-	 if (IsNegative() == true &&
-	     ParentPkg()->Group == I.OwnerPkg()->Group)
-	    continue;
-	 
+
+	 if (IsNegative() == true)
+	 {
+	    /* Provides may never be applied against the same package (or group)
+	       if it is a conflicts. See the comment above. */
+	    if (I.OwnerPkg()->Group == ParentPkg()->Group)
+	       continue;
+	    // Implicit group-conflicts should not be applied on providers of other groups
+	    if (ParentPkg()->Group == TargetPkg()->Group && I.OwnerPkg()->Group != ParentPkg()->Group)
+	       continue;
+	 }
+
 	 Size++;
 	 if (Res != 0)
 	    *End++ = I.OwnerVer();

debian/changelog

@@ -4,8 +4,10 @@ apt (0.8.16~exp10) UNRELEASED; urgency=low
   * apt-pkg/depcache.cc:
     - implicit conflicts (for multiarch) are supposed to conflict
       only with real packages, not with virtual providers
+  * apt-pkg/pkgcache.cc:
+    - ignore implicit conflicts on providers in AllTarget, too
 
- -- David Kalnischkies <kalnischkies@gmail.com>  Wed, 11 Jan 2012 17:59:33 +0100
+ -- David Kalnischkies <kalnischkies@gmail.com>  Fri, 13 Jan 2012 12:47:33 +0100
 
 apt (0.8.16~exp9) experimental; urgency=low
 

test/integration/test-implicit-conflicts-real-not-virtual

@@ -10,6 +10,8 @@ insertpackage 'unstable-mp' 'crda' 'i386,amd64' '1.1.1-1ubuntu4mp' 'Provides: wi
 Multi-Arch: foreign'
 insertpackage 'unstable-m' 'crda' 'i386,amd64' '1.1.1-1ubuntu4m' 'Multi-Arch: foreign'
 insertpackage 'unstable-p' 'crda' 'i386,amd64' '1.1.1-1ubuntu4p' 'Provides: wireless-crda'
+insertpackage 'unstable' 'wireless-crda' 'i386,amd64' '1.16'
+
 
 insertinstalledpackage 'wireless-crda' 'amd64' '1.14'
 
@@ -19,7 +21,7 @@ testequal 'Reading package lists...
 Building dependency tree...
 The following NEW packages will be installed:
   crda
-0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
 Inst crda (1.1.1-1ubuntu4m unstable-m [amd64])
 Conf crda (1.1.1-1ubuntu4m unstable-m [amd64])' aptget install crda -s -t unstable-m
 
@@ -27,7 +29,7 @@ testequal 'Reading package lists...
 Building dependency tree...
 The following NEW packages will be installed:
   crda
-0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
 Inst crda (1.1.1-1ubuntu4p unstable-p [amd64])
 Conf crda (1.1.1-1ubuntu4p unstable-p [amd64])' aptget install crda -s -t unstable-p
 
@@ -35,6 +37,20 @@ testequal 'Reading package lists...
 Building dependency tree...
 The following NEW packages will be installed:
   crda
-0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
 Inst crda (1.1.1-1ubuntu4mp unstable-mp [amd64])
 Conf crda (1.1.1-1ubuntu4mp unstable-mp [amd64])' aptget install crda -s -t unstable-mp
+
+rm rootdir/var/lib/dpkg/status
+insertinstalledpackage 'crda' 'amd64' '1.1.1-1ubuntu4mp' 'Provides: wireless-crda
+Conflicts: wireless-crda (<< 1.15)
+Replaces: wireless-crda ( << 1.15)
+Multi-arch: foreign'
+
+testequal 'Reading package lists...
+Building dependency tree...
+The following NEW packages will be installed:
+  wireless-crda
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
+Inst wireless-crda (1.16 unstable [amd64])
+Conf wireless-crda (1.16 unstable [amd64])' aptget install wireless-crda -s -t unstable