From 7f0daee8b37d8cf6eff32529b1762ffd5104f3f3 Mon Sep 17 00:00:00 2001
From: Mickey Rose <mickey.rose@seznam.cz>
Date: Wed, 1 Aug 2018 17:37:15 +0200
Subject: [PATCH] configure: posix shell can handle this

It's such a trivial script, no need to bash.
---
 configure | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/configure b/configure
index 2a44205fe..b69b959ca 100755
--- a/configure
+++ b/configure
@@ -1,8 +1,8 @@
-#!/bin/bash
+#! /bin/sh
 
 set -eu
 
-PYTHON=${PYTHON:-python}
+: ${PYTHON:=python}
 
 # mapnik-settings.env is an optional file to store
 # environment variables that should be used before
@@ -10,9 +10,9 @@ PYTHON=${PYTHON:-python}
 # These do not normally need to be set except when
 # building against binary versions of dependencies like
 # done via bootstrap.sh
-if [[ -f mapnik-settings.env ]]; then
+if [ -f mapnik-settings.env ]; then
     echo "Inheriting from mapnik-settings.env"
-    source mapnik-settings.env
+    . ./mapnik-settings.env
 fi
 
 $PYTHON scons/scons.py --implicit-deps-changed configure "$@"