From 271902c4c9b85137cf223e62ba7196cccfcb7479 Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Sat, 2 Oct 2021 21:06:33 +0100
Subject: Make it portable (depends on GNU Make)

---
 config.env     | 3 +++
 tests/Makefile | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/config.env b/config.env
index 24bc9bb..21ce6c9 100644
--- a/config.env
+++ b/config.env
@@ -1 +1,4 @@
+# This env file controls some parameters of the build/test system
+
+# Size of the resulting ROM
 ROM_MAX=0x8000
diff --git a/tests/Makefile b/tests/Makefile
index 2d741fa..32933e0 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -2,7 +2,7 @@ default:
 	$(error Please use the Makefile from root directory)
 
 include ../config.env
-export $(shell sed 's/=.*//' ../config.env)
+.EXPORT_ALL_VARIABLES: test
 
 TESTS := $(wildcard test_*.py)
 
-- 
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