Added Fortran.

Makefile

@@ -24,6 +24,7 @@
 CC=gcc
 CXX=g++
 JAVAC=javac
+FTR=gfortran
 
 # Other commands
 RM=rm -rf
@@ -31,7 +32,7 @@ RM=rm -rf
 # Directories
 BINDIR=bin
 
-all: c cpp java
+all: c cpp fortran java
 
 c:
 	mkdir -p $(BINDIR)
@@ -41,6 +42,10 @@ cpp:
 	mkdir -p $(BINDIR)
 	$(CXX) src/Main.cpp -o $(BINDIR)/doublesgame-cpp
 
+fortran:
+	mkdir -p $(BINDIR)
+	$(FTR) src/main.f -o $(BINDIR)/doublesgame-f
+
 java:
 	mkdir -p $(BINDIR)
 	$(JAVAC) src/DoublesGame.java -d $(BINDIR)