Update catch

1_C++/suffix_count/Makefile

@@ -0,0 +1,15 @@
+
+CC = g++
+CFLAGS = -std=c++14 -Werror -Wuninitialized -g
+
+run: test
+	./test
+
+test: catch_amalgamated.o src/*.h test-unit/test.cpp
+	$(CC) $(CFLAGS) -o test test-unit/test.cpp catch_amalgamated.o
+
+catch_amalgamated.o: test-unit/catch/catch_amalgamated.cpp test-unit/catch/catch_amalgamated.hpp
+	$(CC) $(CFLAGS) -c -o catch_amalgamated.o test-unit/catch/catch_amalgamated.cpp
+
+clean:
+	rm -f test catch_amalgamated.o

1_C++/suffix_count/readme.md

@@ -39,9 +39,26 @@ et tu, brute
 
 ## Unit test instructions
 
-To run **unit tests**, open terminal and go to the `suffix_count` directory. At this directory, run the following command:  
+To run **unit tests**, open terminal and go to the `suffix_count` directory.
 
-`g++ -std=c++14 -Werror -Wuninitialized -o test test-unit/test.cpp && ./test`
+### With Make
 
-This will show you which tests you pass. We encourage you to build your own tests.
+If you have make installed, run this command:
+
+`make`
+
+If you installed gcc via the msys2 ucrt64 toolchain, you may need to run this command instead:
+
+`mingw32-make`
+
+### Without Make
 
+If you do not have make, run this command once to build catch:
+
+`g++ -std=c++14 -Werror -Wuninitialized -g -c test-unit/catch/catch_amalgamated.cpp -o catch_amalgamated.o`
+
+Run this command to compile and run the tests (you do not need to run the previous command again):
+
+`g++ -std=c++14 -Werror -Wuninitialized -g catch_amalgamated.o test-unit/test.cpp -o test; ./test`
+
+This will show you which tests you pass. We encourage you to build your own tests.