From 0c467ad654224a648ab85697ed1f87078e25607c Mon Sep 17 00:00:00 2001
From: Josh Polansky <josh@loupe.team>
Date: Sun, 29 Sep 2024 03:41:48 -0700
Subject: [PATCH] Check if pybind already exists (#208)

---
 CMakeLists.txt | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2ea2ff7..b45fa9e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -105,11 +105,15 @@ endif()
 
 
 if(BUILD_PYTHON_MODULE)
-  # Check if pybind11 exists as a subdirectory
-  if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/pybind11)
-    add_subdirectory(pybind11)
-  else()
-    find_package(pybind11 2.6 REQUIRED)
+  
+  # check if pybind11 is already available
+  if(NOT TARGET pybind11::module)
+    # Check if pybind11 exists as a subdirectory
+    if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/pybind11)
+      add_subdirectory(pybind11)
+    else()
+      find_package(pybind11 2.6 REQUIRED)
+    endif()
   endif()
 
   pybind11_add_module(python_ruckig src/ruckig/python.cpp)