Update gtk3-tqt-engine.SlackBuild

Apps/gtk3-tqt-engine/gtk3-tqt-engine.SlackBuild

@@ -33,6 +33,11 @@ getsource_fn
 
 untar_fn
 
+## install theme engine to lib$LIBDIRSUFFIX
+sed -i 's|/lib/|/lib$(LIBDIRSUFFIX)/|' tdegtk/Makefile.am
+## remove redundant KDE_INCLUDES which is null if installing to /usr and causes a '/tde not found' error
+sed -i 's| $(KDE_INCLUDES)/tde||' {tdegtk,tests}/Makefile.am
+
 listdocs_fn
 
 ltoolupdate_fn
@@ -53,11 +58,6 @@ CXX=${COMPILER_CXX} \
 
 make_fn
 
-# can't figure out why installation of theme engines is to usr/lib and not usr/lib$LIBDIRSUFFIX
-# where in the source/build is this set up?
-mv $PKG/usr/lib $PKG/usr/lib$LIBDIRSUFFIX
-sed -i "s|lib/gtk-3.0|lib$LIBDIRSUFFIX/gtk-3.0|" $PKG/usr/lib$LIBDIRSUFFIX/gtk-3.0/3.0.0/theming-engines/libtdegtk.la
-
 installdocs_fn
 
 strip_fn
@@ -91,8 +91,6 @@ cat <<EOINS >> $PKG/install/doinst.sh
 if [ -x usr/bin/update-desktop-database ]; then
   chroot . /usr/bin/update-desktop-database ${INSTALL_TDE}/share/applications > /dev/null 2>&1
 fi
-
 EOINS
 
-
 makepkg_fn