From d4a625cf9c0be2452c213d891c673cd042d0db5c Mon Sep 17 00:00:00 2001
From: Mike Brady <4265913+mikebrady@users.noreply.github.com>
Date: Tue, 6 Jul 2021 19:24:51 +0100
Subject: [PATCH] Check that a git archive actually exists as well as the git
 app being installed.

---
 configure.ac | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/configure.ac b/configure.ac
index 541ec999..5e4cf244 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,11 +9,10 @@ AC_CONFIG_HEADERS([config.h])
 AC_PROG_RANLIB
 
 AC_CHECK_PROGS([GIT], [git])
-if test -n "$GIT"; then
+if test -n "$GIT" && test -e ".git/index" ; then
   AC_DEFINE([CONFIG_USE_GIT_VERSION_STRING], 1, [Use the version string produced by running 'git describe --dirty'.])
 fi
-AM_CONDITIONAL([USE_GIT_VERSION], [test -n "$GIT"])
-
+AM_CONDITIONAL([USE_GIT_VERSION], [test -n "$GIT" && test -e ".git/index" ])
 
 # Derived from the Avahi configure.ac file
 # Specifying the OS type, defaulting to linux.