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-rw-r--r--apt-pkg/depcache.cc2
-rwxr-xr-xtest/integration/test-bug-745046-candidate-propagation-fails39
2 files changed, 40 insertions, 1 deletions
diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index aa96ac58f..c25672d1c 100644
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -1374,7 +1374,7 @@ bool pkgDepCache::IsInstallOkDependenciesSatisfiableByCandidates(PkgIterator con
// the dependency is critical, but can't be installed, so discard the candidate
// as the problemresolver will trip over it otherwise trying to install it (#735967)
- if (Pkg->CurrentVer != 0)
+ if (Pkg->CurrentVer != 0 && (PkgState[Pkg->ID].iFlags & Protected) != Protected)
SetCandidateVersion(Pkg.CurrentVer());
return false;
}
diff --git a/test/integration/test-bug-745046-candidate-propagation-fails b/test/integration/test-bug-745046-candidate-propagation-fails
new file mode 100755
index 000000000..e4aa67a72
--- /dev/null
+++ b/test/integration/test-bug-745046-candidate-propagation-fails
@@ -0,0 +1,39 @@
+#!/bin/sh
+set -e
+
+TESTDIR=$(readlink -f $(dirname $0))
+. $TESTDIR/framework
+
+setupenvironment
+configarchitecture 'amd64'
+
+insertinstalledpackage 'gedit' 'amd64' '1'
+
+insertpackage 'unstable' 'gedit' 'amd64' '1'
+insertpackage 'experimental' 'gedit' 'amd64' '2' 'Depends: common (>= 2)'
+
+setupaptarchive
+
+testequal "Reading package lists...
+Building dependency tree...
+Selected version '2' (experimental [amd64]) for 'gedit'
+Some packages could not be installed. This may mean that you have
+requested an impossible situation or if you are using the unstable
+distribution that some required packages have not yet been created
+or been moved out of Incoming.
+The following information may help to resolve the situation:
+
+The following packages have unmet dependencies:
+ gedit : Depends: common (>= 2) but it is not installable
+E: Unable to correct problems, you have held broken packages." aptget install gedit/experimental -sq=0
+
+insertinstalledpackage 'common' 'amd64' '2'
+
+testequal "Reading package lists...
+Building dependency tree...
+Selected version '2' (experimental [amd64]) for 'gedit'
+The following packages will be upgraded:
+ gedit
+1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
+Inst gedit [1] (2 experimental [amd64])
+Conf gedit (2 experimental [amd64])" aptget install gedit/experimental -sq=0