From 7827150493981f2ade419b7ecaa83e736ce533c1 Mon Sep 17 00:00:00 2001
From: Tobias Melson <code@tobias-melson.de>
Date: Wed, 15 Feb 2023 12:27:16 +0100
Subject: [PATCH] Refactored make check

---
 .gitignore |  1 +
 Makefile   | 11 +++++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index 6b417f9..06ec209 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@ a.out
 bf
 *.x
 *.s
+OUT.*
diff --git a/Makefile b/Makefile
index 5ea7c41..cd92654 100644
--- a/Makefile
+++ b/Makefile
@@ -12,6 +12,7 @@ clean:
 	rm -f a.out
 	rm -f *.x
 	rm -f *.s
+	rm -f OUT.*
 
 TEST_FILES=hello_world add rot13 pi
 TESTS=$(patsubst %, test/%, $(TEST_FILES))
@@ -19,10 +20,12 @@ TESTS=$(patsubst %, test/%, $(TEST_FILES))
 check: $(EXE) $(TESTS)
 
 test/%: test/%.0.x test/%.1.x
-	test ! -f $@.in || diff -q $@.out <(./$< < $@.in)
-	test -f $@.in || diff -q $@.out <(./$<)
-	test ! -f $@.in || diff -q $@.out <(./$(word 2,$^) < $@.in)
-	test -f $@.in || diff -q $@.out <(./$(word 2,$^))
+	test ! -f $@.in || ./$< < $@.in > OUT.0
+	test -f $@.in || ./$< > OUT.0
+	diff -q $@.out OUT.0
+	test ! -f $@.in || ./$(word 2,$^) < $@.in > OUT.1
+	test -f $@.in || ./$(word 2,$^) > OUT.1
+	diff -q $@.out OUT.1
 
 test/%.0.x: test/%.bf
 	./$(EXE) -o $@ -O0 $<