etcpmon: add Makefile to git (was ignored by *.gitignore Makefile pattern)

.gitignore

@@ -28,6 +28,7 @@ index.html
 
 # Autotools
 Makefile
+!tools/etcpmon/Makefile
 Makefile.in
 /aclocal.m4
 /autom4te.cache/

tools/etcpmon/Makefile

@@ -0,0 +1,35 @@
+# ETCP Monitor Makefile
+# Usage: make [target]
+#
+# Targets:
+#   all      - Build the application (default)
+#   clean    - Remove object files and executable
+#   rebuild  - Clean and rebuild
+
+CC = gcc
+CFLAGS = -Wall -O2 -DWIN32_LEAN_AND_MEAN
+CFLAGS += -I. -I../../src
+LDFLAGS = -mwindows
+LIBS = -lws2_32 -lcomctl32 -luser32 -lgdi32
+
+TARGET = etcpmon.exe
+SRCS = etcpmon_main.c etcpmon_gui.c etcpmon_client.c etcpmon_graph.c
+OBJS = $(SRCS:.c=.o)
+
+.PHONY: all clean rebuild
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	@echo Linking $@
+	$(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+%.o: %.c
+	@echo Compiling $<
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+clean:
+	@echo Cleaning...
+	rm -f $(OBJS) $(TARGET)
+
+rebuild: clean $(TARGET)