coreutils: changed to not install mktemp if the mktemp package is enabled

base/coreutils/coreutils.conf

@@ -52,3 +52,7 @@ hook_add postmake 5 'ln -sf install $root/usr/bin/ginstall'
 
 # install hostname
 var_append confopt ' ' '--enable-install-program=hostname'
+
+if pkginstalled mktemp; then
+	var_append confopt ' ' '--enable-no-install-program=mktemp'
+fi