From 29958745c8f58cffd24e1793702524ce84545e5a Mon Sep 17 00:00:00 2001
From: Jan Maria Matejka <mq@ucw.cz>
Date: Thu, 3 May 2018 11:14:49 +0200
Subject: [PATCH] Makefile: Only set git version if BIRD is build from its
 repository.
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Thanks to Toke Høiland-Jørgensen <toke@toke.dk> for reporting this bug.
---
 Makefile.in | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index c8168bbe..eb6cc5c9 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -21,11 +21,6 @@ INSTALL=@INSTALL@
 INSTALL_PROGRAM=@INSTALL_PROGRAM@
 INSTALL_DATA=@INSTALL_DATA@
 
-git-label:=$(strip $(shell git describe --always --dirty=-x 2>/dev/null))
-ifneq ($(git-label),)
-        CFLAGS += -DGIT_LABEL="$(git-label)"
-endif
-
 client=$(addprefix $(exedir)/,@CLIENT@)
 daemon=$(exedir)/bird
 protocols=@protocols@
@@ -42,6 +37,11 @@ srcdir := @srcdir@
 objdir := @objdir@
 exedir := @exedir@
 
+git-label:=$(strip $(shell cd $(srcdir) && [ "$$(git rev-parse --show-toplevel)" = "$$(readlink -f .)" ] && git describe --always --dirty=-x 2>/dev/null))
+ifneq ($(git-label),)
+        CFLAGS += -DGIT_LABEL="$(git-label)"
+endif
+
 ifeq ($(objdir),.)
   objdir := $(realpath .)
 endif