From 59674b1b9a317b5bfc615dd7c454be256e53b509 Mon Sep 17 00:00:00 2001
From: Nils Wentzell <nwentzell@flatironinstitute.org>
Date: Wed, 26 Jul 2023 15:36:55 -0400
Subject: [PATCH] [cmake] Do not check doc build options as subproject

---
 CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9dd2bfa2..d1a88fb3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,7 +74,7 @@ endif()
 
 # Documentation
 option(Build_Documentation "Build documentation" OFF)
-if(Build_Documentation AND NOT PythonSupport)
+if(NOT IS_SUBPROJECT AND (Build_Documentation AND NOT PythonSupport))
   message(FATAL_ERROR "Build_Documentation=ON requires PythonSupport to be enabled")
 endif()