diff --git a/test_programs/GNUmakefile.os4 b/test_programs/GNUmakefile.os4
new file mode 100644
index 0000000..8dd0d89
--- /dev/null
+++ b/test_programs/GNUmakefile.os4
@@ -0,0 +1,78 @@
+#
+# $Id: GNUmakefile.os4,v 1.1 2004-09-29 14:37:10 obarthel Exp $
+#
+# :ts=8
+#
+
+##############################################################################
+
+CC = ppc-amigaos-gcc
+DELETE = rm -r
+
+##############################################################################
+
+.c.o:
+	@echo "Compiling $<"
+	@$(CC) -c $(CFLAGS) $<
+
+##############################################################################
+
+WARNINGS = \
+	-Wall -W -Wshadow -Wpointer-arith -Wsign-compare -Wmissing-prototypes \
+	-Wundef -Wbad-function-cast -Wmissing-declarations -Wconversion
+
+INCLUDE = -I../library/include
+LIB = -L../library/lib
+#OPTIONS = -DNDEBUG -fno-builtin -DNO_INLINE_STDARG -DIEEE_FLOATING_POINT_SUPPORT
+#OPTIONS = -D__MEM_DEBUG -fno-builtin
+ OPTIONS = -DDEBUG -D__MEM_DEBUG -DNO_INLINE_STDARG -fno-builtin
+ OPTIMIZE = -O
+#OPTIMIZE = -O2 -fomit-frame-pointer
+#DEBUG = -g2
+
+CFLAGS = $(WARNINGS) $(OPTIMIZE) $(DEBUG) $(OPTIONS) $(CODE_TYPE) $(INCLUDE) $(LIB)
+
+##############################################################################
+
+LIBS = -lm -lc
+
+##############################################################################
+
+all: test fgets_test iotest sscanf_test printf_test sprintf_test stack_size_test translate_test
+
+clean:
+	$(DELETE) *.o *.map test fgets_test iotest sscanf_test printf_test sprintf_test stack_size_test translate_test
+
+##############################################################################
+
+test : test.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ test.o $(LIBS) -Wl,--cref,-M,-Map=$@.map
+
+fgets_test : fgets_test.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ fgets_test.o $(LIBS) -Wl,--cref,-M,-Map=$@.map
+
+iotest : iotest.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ iotest.o $(LIBS) -Wl,--cref,-M,-Map=$@.map
+
+sscanf_test : sscanf_test.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ sscanf_test.o $(LIBS) -Wl,--cref,-M,-Map=$@.map
+
+printf_test : printf_test.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ printf_test.o $(LIBS) -Wl,--cref,-M,-Map=$@.map
+
+sprintf_test : sprintf_test.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ sprintf_test.o $(LIBS) -Wl,--cref,-M,-Map=$@.map
+
+stack_size_test : stack_size_test.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ stack_size_test.o $(LIBS) -Wl,--cref,-M,-Map=$@.map
+
+translate_test : translate_test.o
+	@echo "Linking $@"
+	$(CC) $(CFLAGS) -o $@ translate_test.o -lunix $(LIBS) -Wl,--cref,-M,-Map=$@.map