$NetBSD$

Use pkgsrc partio when building module.

--- src/py/CMakeLists.txt.orig	2023-07-02 02:16:37.000000000 +0000
+++ src/py/CMakeLists.txt
@@ -48,9 +48,9 @@ target_include_directories(
     partio_mod
     PRIVATE
         ${PYTHON_INCLUDE_DIRS}
-        ${CMAKE_SOURCE_DIR}/src/lib
+        ${PARTIO_INCLUDE_DIR}
 )
-target_link_libraries(partio_mod PRIVATE ${PYTHON_LIBRARIES} partio)
+target_link_libraries(partio_mod PRIVATE ${PYTHON_LIBRARIES} ${PARTIO_LIBRARY})
 
 set(PYTHON_DEST "${CMAKE_INSTALL_LIBDIR}/python${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}/site-packages" )