We provide our own PYTHONEXECDIR value and so we need to prevent its overwrite.

--- hplip-3.25.6/configure.in.orig
+++ hplip-3.25.6/configure.in
@@ -657,15 +657,6 @@
          AC_MSG_ERROR([Failed to determine the Python include directory. Please check your Python installation.], 6)
       fi
    fi
-   PYTHONEXECDIR=`$PYTHON -c "from distutils.sysconfig import get_python_lib; print (get_python_lib(1));" 2>/dev/null || echo "not found"`
-   if test "$PYTHONEXECDIR" = "not found"; then
-      AC_MSG_WARN([Failed to determine the Python executable directory. Retry using sysconfig module.])
-      PYTHONEXECDIR=`$PYTHON -c "import sysconfig; print(sysconfig.get_path('platlib'))" 2>/dev/null || echo "not found"`
-      if test "$PYTHONEXECDIR" = "not found"; then
-         AC_MSG_ERROR([Failed to determine the Python executable directory. Please check your Python installation.], 6)
-      fi
-   fi
-   AC_MSG_RESULT("using python executable directory $PYTHONEXECDIR ....  python${PYTHON_VERSION}/Python.h")
    AC_MSG_RESULT("using python include directory $PYTHONINCLUDEDIR ....  python${PYTHON_VERSION}/Python.h")
    AC_ARG_VAR(PYTHONINCLUDEDIR, [path to Python.h C header file])
    AC_ARG_VAR(PYTHONEXECDIR, [path to Python executable directory])