pybind11 superbuild: set PYTHON_EXECUTABLE

Signed-off-by: Axel Huebl <axel.huebl@plasma.ninja>
openPMD · Oct 11, 2024 · 240592f · 240592f
1 parent f2570e8
commit 240592f
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/cmake/dependencies/pybind11.cmake b/cmake/dependencies/pybind11.cmake
@@ -16,6 +16,15 @@ function(find_pybind11)
             message(STATUS "pybind11 repository: ${openPMD_pybind11_repo} (${openPMD_pybind11_branch})")
         endif()
     endif()
+
+    # Propagate Python to pybind11 in superbuilds
+    if(openPMD_USE_INTERNAL_PYBIND11)
+        # we found Python via find_package(Python ...) below, but pybind11 has some
+        # additional internal logic in FindPythonLibsNew.cmake can mix things up
+        # https://github.com/openPMD/openPMD-api/pull/1677#issuecomment-2407743771
+        set(PYTHON_EXECUTABLE ${Python_EXECUTABLE})
+    endif()
+
     if(TARGET pybind11::module)
         # nothing to do, target already exists in the superbuild
     elseif(openPMD_USE_INTERNAL_PYBIND11 AND openPMD_pybind11_src)