Add initial files

exercises/02/vslc/Makefile

@@ -0,0 +1,12 @@
+LEX=flex
+YACC=bison
+YFLAGS+=--defines=src/y.tab.h -o y.tab.c
+CFLAGS+=-std=c99 -g -Isrc -Iinclude -D_POSIX_C_SOURCE=200809L -DYYSTYPE="node_t *"
+
+src/vslc: src/vslc.c src/parser.o src/scanner.o src/nodetypes.o src/tree.o
+src/y.tab.h: src/parser.c
+src/scanner.c: src/y.tab.h src/scanner.l
+clean:
+	-rm -f src/parser.c src/scanner.c src/*.tab.* src/*.o
+purge: clean
+	-rm -f src/vslc