Do not link to KAuth. But there is still a build time dependency on kauth-policy-gen.

src/CMakeLists.txt

@@ -37,7 +37,6 @@ target_link_libraries( kpmcore PUBLIC
     KF5::I18n
     KF5::CoreAddons
     KF5::WidgetsAddons
-    KF5::AuthCore
 )
 
 install(TARGETS kpmcore EXPORT KPMcoreTargets  ${INSTALL_TARGETS_DEFAULT_ARGS})

src/util/externalcommand.cpp

@@ -37,8 +37,6 @@
 #include <QTimer>
 #include <QThread>
 #include <QVariant>
-
-#include <KAuth>
 #include <KJob>
 #include <KLocalizedString>
 
@@ -53,10 +51,6 @@ struct ExternalCommandPrivate
     QProcess::ProcessChannelMode processChannelMode;
 };
 
-KAuth::ExecuteJob* ExternalCommand::m_job;
-QWidget* ExternalCommand::parent;
-
-
 /** Creates a new ExternalCommand instance without Report.
     @param cmd the command to run
     @param args the arguments to pass to the command

src/util/externalcommand.h

@@ -24,8 +24,6 @@
 
 #include <memory>
 
-namespace KAuth { class ExecuteJob; }
-
 class KJob;
 class Report;
 class CopySource;
@@ -89,13 +87,6 @@ public:
     /**< @return pointer to the Report or nullptr */
     Report* report();
 
-    /**< Sets a parent widget for the authentication dialog.
-     * @param p parent widget
-     */
-    static void setParentWidget(QWidget *p) {
-        parent = p;
-    }
-
 Q_SIGNALS:
     void progress(int);
     void reportSignal(const QString&);
@@ -109,9 +100,6 @@ private:
 private:
     std::unique_ptr<ExternalCommandPrivate> d;
 
-    // KAuth
-    static KAuth::ExecuteJob *m_job;
-    static QWidget *parent;
 };
 
 #endif