diff -Nur calamares-3.1.5/calamares.desktop calamares-3.1.5-kdesu/calamares.desktop

--- calamares-3.1.5/calamares.desktop	2017-09-25 17:13:33.000000000 +0200

+++ calamares-3.1.5-kdesu/calamares.desktop	2017-09-27 03:30:14.647027258 +0200

@@ -5,7 +5,7 @@

 GenericName=System Installer

 Keywords=calamares;system;installer

 TryExec=calamares

-Exec=pkexec /usr/bin/calamares

+Exec=kdesu /usr/bin/calamares

 Comment=Calamares — System Installer

 Icon=calamares

 Terminal=false

diff -Nur calamares-3.1.5/CMakeLists.txt calamares-3.1.5-kdesu/CMakeLists.txt

--- calamares-3.1.5/CMakeLists.txt	2017-09-25 17:13:33.000000000 +0200

+++ calamares-3.1.5-kdesu/CMakeLists.txt	2017-09-27 03:30:15.121020240 +0200

@@ -110,7 +110,6 @@

 find_package( Qt5 ${QT_VERSION} CONFIG REQUIRED Core Gui Widgets LinguistTools Svg Quick QuickWidgets )

 find_package( YAMLCPP 0.5.1 REQUIRED )

-find_package( PolkitQt5-1 REQUIRED )

 option( INSTALL_CONFIG "Install configuration files" ON )

 option( WITH_PYTHON "Enable Python modules API (requires Boost.Python)." ON )

@@ -332,13 +331,6 @@

 install(

   FILES

-      com.github.calamares.calamares.policy

-  DESTINATION

-      "${POLKITQT-1_POLICY_FILES_INSTALL_DIR}"

-)

-

-install(

-  FILES

       calamares.desktop

   DESTINATION

       ${CMAKE_INSTALL_DATADIR}/applications

diff -Nur calamares-3.1.5/com.github.calamares.calamares.policy calamares-3.1.5-kdesu/com.github.calamares.calamares.policy

--- calamares-3.1.5/com.github.calamares.calamares.policy	2017-09-25 17:13:33.000000000 +0200

+++ calamares-3.1.5-kdesu/com.github.calamares.calamares.policy	1970-01-01 01:00:00.000000000 +0100

@@ -1,22 +0,0 @@

-

-

-"-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN"

-"http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">

-<policyconfig>

-

- <vendor>Calamares</vendor>

- <vendor_url>https://github.com/calamares</vendor_url>

-

- <action id="com.github.calamares.calamares.pkexec.run">

-    <description>Run Installer</description>

-    <message>Authentication is required to run the installation program</message>

-    <icon_name>drive-harddisk</icon_name>

-    <defaults>

-     <allow_any>no</allow_any>

-     <allow_inactive>no</allow_inactive>

-     <allow_active>auth_admin</allow_active>

-    </defaults>

-    <annotate key="org.freedesktop.policykit.exec.path">/usr/bin/calamares</annotate>

-    <annotate key="org.freedesktop.policykit.exec.allow_gui">true</annotate>

- </action>

-</policyconfig>

\ No newline at end of file