update,

mercury25/task1/provided/Makefile

@@ -0,0 +1,22 @@
+# COMP1521 22T2 ... a general makefile for multiple exercises
+
+ifneq (, $(shell which dcc))
+CC	= dcc
+else ifneq (, $(shell which clang) )
+CC	= clang
+else
+CC  = gcc
+endif
+
+EXERCISES	?=
+CLEAN_FILES	?=
+
+.DEFAULT_GOAL	= all
+.PHONY: all clean
+
+-include *.mk
+
+all:	${EXERCISES}
+
+clean:
+	-rm -f ${CLEAN_FILES}