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-rw-r--r--apt-pkg/deb/dpkgpm.cc4
1 files changed, 4 insertions, 0 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index c6900ec77..790019b98 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -2010,6 +2010,10 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
else
setenv("DPKG_COLORS", "never", 0);
+ if (dynamic_cast<debSystem*>(_system) != nullptr
+ && dynamic_cast<debSystem*>(_system)->IsLocked() == true) {
+ setenv("DPKG_FRONTEND_LOCKED", "true", 1);
+ }
execvp(Args[0], (char**) &Args[0]);
cerr << "Could not exec dpkg!" << endl;
_exit(100);