require python 3.11 for stubs generation

ROS Humble not supported

Author: ahoarau

CMakeLists.txt

@@ -193,14 +193,18 @@ if(BUILD_WITH_ACCELERATE_SUPPORT AND APPLE)
   target_compile_definitions(nanoeigenpy PRIVATE NANOEIGENPY_HAS_ACCELERATE)
 endif()
 
-nanobind_add_stub(
-  nanoeigenpy_stub
-  VERBOSE
-  MODULE nanoeigenpy
-  OUTPUT ${CMAKE_BINARY_DIR}/lib/site-packages/nanoeigenpy.pyi
-  PYTHON_PATH $<TARGET_FILE_DIR:nanoeigenpy>
-  DEPENDS nanoeigenpy
-)
+# Stub generation requires typing-extensions
+# ROS Humble ships an incompatible typing-extensions with python3.10
+if(PYTHON_VERSION_MAJOR EQUAL 3 AND PYTHON_VERSION_MINOR GREATER_EQUAL 11)
+  nanobind_add_stub(
+    nanoeigenpy_stub
+    VERBOSE
+    MODULE nanoeigenpy
+    OUTPUT ${CMAKE_BINARY_DIR}/lib/site-packages/nanoeigenpy.pyi
+    PYTHON_PATH $<TARGET_FILE_DIR:nanoeigenpy>
+    DEPENDS nanoeigenpy
+  )
+endif()
 
 jrl_python_compute_install_dir(python_install_dir)
 # NOTE: install the whole binary dir, we need the "/" at the end to copy the content.