From bb3463b14cff1b2ac0c558baa5393c8a8d2bbcf2 Mon Sep 17 00:00:00 2001
From: Jonathan Naylor <naylorjs@yahoo.com>
Date: Mon, 22 Apr 2024 14:06:52 +0100
Subject: [PATCH] Add the gitversion to the Makefile.

---
 Makefile | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index a789596..ff6d6dc 100644
--- a/Makefile
+++ b/Makefile
@@ -8,14 +8,30 @@ OBJECTS = Conf.o DAPNETGateway.o DAPNETNetwork.o Log.o POCSAGMessage.o POCSAGNet
 
 all:		DAPNETGateway
 
-DAPNETGateway:	$(OBJECTS)
+DAPNETGateway:	GitVersion.h $(OBJECTS)
 		$(CXX) $(OBJECTS) $(CFLAGS) $(LIBS) -o DAPNETGateway
 
 %.o: %.cpp
 		$(CXX) $(CFLAGS) -c -o $@ $<
 
+DAPNETGateway.o: GitVersion.h FORCE
+
+.PHONY: GitVersion.h
+
+FORCE:
+
+
 install:
 		install -m 755 DAPNETGateway /usr/local/bin/
 
 clean:
 		$(RM) DAPNETGateway *.o *.d *.bak *~
+
+# Export the current git version if the index file exists, else 000...
+GitVersion.h:
+ifneq ("$(wildcard .git/index)","")
+	echo "const char *gitversion = \"$(shell git rev-parse HEAD)\";" > $@
+else
+	echo "const char *gitversion = \"0000000000000000000000000000000000000000\";" > $@
+endif
+