diff -ru CuteMarkEd-0.11.1/app/app.pro CuteMarkEd-0.11.1-sane/app/app.pro
--- CuteMarkEd-0.11.1/app/app.pro	2015-07-06 12:02:22.000000000 +0200
+++ CuteMarkEd-0.11.1-sane/app/app.pro	2015-07-09 14:53:29.398899757 +0200
@@ -243,7 +243,7 @@
 ## INSTALLATION
 
 unix {
-   isEmpty(PREFIX): PREFIX = /usr
+   isEmpty(PREFIX): PREFIX = $${ROOT}/usr
    DATADIR = $${PREFIX}/share
 
    # install desktop file
diff -ru CuteMarkEd-0.11.1/fontawesomeicon/fontawesomeicon.pro CuteMarkEd-0.11.1-sane/fontawesomeicon/fontawesomeicon.pro
--- CuteMarkEd-0.11.1/fontawesomeicon/fontawesomeicon.pro	2015-07-06 12:02:22.000000000 +0200
+++ CuteMarkEd-0.11.1-sane/fontawesomeicon/fontawesomeicon.pro	2015-07-09 14:52:45.867901697 +0200
@@ -39,7 +39,7 @@
 
 unix {
    # install plugin
-   target.path = $$[QT_INSTALL_PLUGINS]/iconengines
+   target.path = $${ROOT}/$$[QT_INSTALL_PLUGINS]/iconengines
    INSTALLS += target
    message("The project will be installed in $$[QT_INSTALL_PLUGINS]/iconengines")
 }