squashfs-tools: changed to use the install target of the Makefile

filesystem/squashfs-tools/squashfs-tools.conf

@@ -13,8 +13,6 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
-makeinstopt=
-
 hook_add preconf 2 'cd squashfs-tools'
 
 # xattr support
@@ -23,5 +21,6 @@ if ! pkginstalled -f attr; then
 	var_append makeopt ' ' "XATTR_DEFAULT=0"
 fi
 
-hook_add postmake 5 "install {mk,un}squashfs $root$sbindir/"
+var_append makeopt ' ' "INSTALL_DIR=$root/$prefix/sbin"
 
+makeinstopt="$makeopt install"