initial import

zsh/zsh-shcompat.install

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+post_install() {
+  for i in 'sh' 'rsh'; do
+    grep -qx "/bin/${i}" 'etc/shells' || echo "/bin/${i}" >> 'etc/shells'
+  done
+  unset i
+}
+
+post_upgrade() {
+  post_install
+}
+
+post_remove() {
+  for i in 'sh' 'rsh'; do
+    sed -i "\|^/bin/${i}$|d" 'etc/shells'
+  done
+  unset i
+}