Add workaround for XDG_RUNTIME_DIR on macOS

base/.profile

@@ -10,6 +10,21 @@ export XDG_CACHE_HOME=${XDG_CACHE_HOME:="$HOME/.cache"}
 export XDG_CONFIG_HOME=${XDG_CONFIG_HOME:="$HOME/.config"}
 export XDG_DATA_HOME=${XDG_DATA_HOME:="$HOME/.local/share"}
 
+if [ "${XDG_RUNTIME_DIR}" = "" ]; then
+    __TMPDIR__=
+    __LINK__=/tmp/$(id -u)
+    if [ -L "${__LINK__}" ]; then
+        __TMPDIR__="$(readlink "${__LINK__}")"
+    else
+        __TMPDIR__="$(mktemp)"
+        ln -s "${__TMPDIR__}" "${__LINK__}"
+    fi
+    XDG_RUNTIME_DIR="${__TMPDIR__}"
+    unset __TMPDIR__ __LINK__
+fi
+
+export XDG_RUNTIME_DIR
+
 env_file () {
     file="${1}"
     if [ ! -f "${file}" ]; then