Better support of pybind: only binds for pybind11::lto if available

Author: thelfer

bindings/python/src/CMakeLists.txt

@@ -5,9 +5,15 @@ function(mgis_python_module fullname name)
   add_library(py_${fullname} MODULE ${ARGN})
   target_include_directories(py_${fullname} PRIVATE
    $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/bindings/python/include>)
-  target_link_libraries(py_${fullname} PRIVATE
-    MFrontGenericInterface
-    pybind11::module pybind11::lto pybind11::windows_extras)
+  if(TARGET pybind11::lto)
+    target_link_libraries(py_${fullname} PRIVATE
+      MFrontGenericInterface
+      pybind11::module pybind11::lto pybind11::windows_extras)
+  else(TARGET pybind11::lto)
+    target_link_libraries(py_${fullname} PRIVATE
+      MFrontGenericInterface
+      pybind11::module pybind11::windows_extras)
+  endif(TARGET pybind11::lto)
   pybind11_extension(py_${fullname})
   if(NOT MSVC AND NOT ${CMAKE_BUILD_TYPE} MATCHES Debug|RelWithDebInfo)
     # Strip unnecessary sections of the binary on Linux/macOS