we cannot use PYBIND11 without PYTHONLIBS

No idea why pybind11 does not do it automatically. Maybe they think
that pybind11 can work (ie generate code) even if that code cannot be
compiled, but that's a bit ... strange.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 02a0859..c8cbaee 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -850,6 +850,9 @@ endif()
 # Python binding, generated with pybind11
 set(PYBIND11_CPP_STANDARD -std=c++11)
 find_package(pybind11)
+if(NOT PYTHONLIBS_FOUND)
+  set(pybind11_FOUND OFF)
+endif()
 option(enable_python "Whether the Python bindings are activated." ${pybind11_FOUND}) # ON by default if dependencies are met
 
 if(enable_python)