commit 09334c51c753254001c335e258f42774022dd639
Author:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
AuthorDate: Sat Sep 17 09:56:45 2022 +0200
Commit:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
CommitDate: Sat Sep 17 09:56:45 2022 +0200

    Improve use of CMake's OPTION_BUILD_HTML_DOCUMENTATION

 documentation/CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git documentation/CMakeLists.txt documentation/CMakeLists.txt
index 1fe6d61..df23668 100644
--- documentation/CMakeLists.txt
+++ documentation/CMakeLists.txt
@@ -44,7 +44,8 @@ if (GENERATE_DOCS)
     OUTPUT_VARIABLE CURRENT_DATE
   )
 
-  execute_process (COMMAND git rev-parse --short=10 HEAD
+  execute_process (COMMAND
+    git --git-dir=${CMAKE_SOURCE_DIR}/.git rev-parse --short=10 HEAD
     OUTPUT_VARIABLE GIT_REVISION
   )