From 2105c6dee6a0a0e1b726012d2ce27ea5ac691bb0 Mon Sep 17 00:00:00 2001
From: Emily Bourne <emily.bourne@epfl.ch>
Date: Tue, 17 Oct 2023 06:44:24 +0000
Subject: [PATCH] Only require doxygen if docs are being built

---
 CMakeLists.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e1c5440e3..2c23701f3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,9 +36,6 @@ find_package(paraconf REQUIRED COMPONENTS C)
 ## Look for a pre-installed PDI
 find_package(PDI REQUIRED COMPONENTS C)
 
-## Look for a pre-installed Doxygen
-find_package(Doxygen REQUIRED OPTIONAL_COMPONENTS dot)
-
 ## if tests are enabled, use googletest from `vendor/`
 ### we use it to write unit tests
 if("${BUILD_TESTING}")
@@ -99,7 +96,10 @@ endif()
 
 ## if documentation is enabled, build it
 if("${BUILD_DOCUMENTATION}")
-        add_subdirectory(docs/)
+  ## Look for a pre-installed Doxygen
+  find_package(Doxygen REQUIRED OPTIONAL_COMPONENTS dot)
+
+  add_subdirectory(docs/)
 endif()
 
 ## Turn off documentation for subpackages