From 7108d8450bcfffd6141887bd5bd390b040f67ea6 Mon Sep 17 00:00:00 2001
From: Oliver Hamlet <git@ortham.net>
Date: Sat, 18 May 2024 16:55:23 +0100
Subject: [PATCH] Improve handling of build not in a Git repository

If Git is installed but the build is not running in a Git repository, then git rev-parse will fail and GIT_COMMIT_STRING will be empty.
---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 062b382e..359921ec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,7 +28,9 @@ if(GIT_FOUND)
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
         OUTPUT_VARIABLE GIT_COMMIT_STRING
         OUTPUT_STRIP_TRAILING_WHITESPACE)
-else()
+endif()
+
+if(NOT GIT_COMMIT_STRING)
     set(GIT_COMMIT_STRING "unknown")
 endif()