From ba1c32981d4fadb6375a5c7c84f5aedfa3c393b6 Mon Sep 17 00:00:00 2001
From: Oliver Lantwin <oliver.lantwin@cern.ch>
Date: Mon, 1 Jun 2026 14:43:51 +0700
Subject: [PATCH] Use DEFAULT_VERSION in get_git_version()

When building from a source tarball (no .git directory), the version
cannot be determined from git tags. Pass DEFAULT_VERSION so that the
version can be set via -DPROJECT_VERSION on the CMake command line.

The get_git_version() function already supports this parameter; this
change simply makes use of it.
---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0597d85..4911618 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@ set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 include(FairLoggerLib)
 include(FairFindPackage2)
 
-get_git_version()
+get_git_version(DEFAULT_VERSION ${PROJECT_VERSION})
 
 project(FairLogger VERSION ${PROJECT_VERSION} LANGUAGES CXX)
 message(STATUS "${BWhite}${PROJECT_NAME}${CR} ${PROJECT_GIT_VERSION} from ${PROJECT_DATE}")