Add autogen.sh script

This brings us in line with the [build API](https://github.com/cgwalters/build-api) used by flatpak-builder.

Add autogen.sh script
This brings us in line with the [build API](https://github.com/cgwalters/build-api) used by flatpak-builder.
4f3733b0 · Sam Thursfield · 7cf93e5e · 4f3733b0
Commit 4f3733b0 authored Nov 17, 2019 by Sam Thursfield
--- a/pd/src/autogen.sh
+++ b/pd/src/autogen.sh
+#!/bin/sh
+autoreconf -ivf