From 9130fa0450927fac2e9faa53431873302d78442a Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Thu, 26 Dec 2019 13:01:00 +0100
Subject: Makefile: add git versioning to dev builds

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 src/Makefile | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/Makefile')

diff --git a/src/Makefile b/src/Makefile
index 6bbed32..f8eaebf 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -96,6 +96,14 @@ install: wg
 	@[ "$(WITH_WGQUICK)" = "yes" -a "$(WITH_SYSTEMDUNITS)" = "yes" ] || exit 0; \
 	install -v -d "$(DESTDIR)$(SYSTEMDUNITDIR)" && install -v -m 0644 systemd/wg-quick@.service "$(DESTDIR)$(SYSTEMDUNITDIR)/wg-quick@.service"
 
-.PHONY: clean install
+wg.o: version.h
+version.h:
+	@export GIT_CEILING_DIRECTORIES="$(PWD)/../.." && \
+	ver="#define WIREGUARD_TOOLS_VERSION \"$$(git describe --dirty 2>/dev/null)\"" && \
+	[ "$$(cat version.h 2>/dev/null)" != "$$ver" ] && \
+	echo "$$ver" > version.h && \
+	git update-index --assume-unchanged version.h || true
+
+.PHONY: clean install version.h
 
 -include *.d
-- 
cgit v1.2.3-59-g8ed1b