diff -up hplip-3.20.9/configure.in.configure-python hplip-3.20.9/configure.in

--- hplip-3.20.9/configure.in.configure-python	2020-09-23 07:24:27.000000000 +0200

+++ hplip-3.20.9/configure.in	2020-10-02 07:27:09.082331431 +0200

@@ -604,17 +604,29 @@ if test "$class_driver" = "no" && test "

    fi

 fi

-SAVE_CPPFLAGS="$CPPFLAGS"

-CFLAGS=`python-config --includes`

-if [ $? -eq 0 ] 

-then

-   echo $FLAGS

-else

-CFLAGS=`python3-config --includes`

-   if [ $? -eq 0 ]

-   then

-   echo $FLAGS

-   fi

+AC_PATH_PROG(python3_config_path, python3-config, [AC_MSG_ERROR([python3-config not installed], 6)])

+

+PYTHON_INCLUDES=`$python3_config_path --includes`

+if test "X$PYTHON_INCLUDES" = "X" ; then

+  AC_MSG_ERROR([Cannot get Python includes via python3-config], 6)

+fi

+

+PYTHON_LIBS=`$python3_config_path --libs`

+if test "X$PYTHON_LIBS" = "X" ; then

+  AC_MSG_ERROR([Cannot get Python libs via python3-config], 6)

+fi

+

+SAVE_CFLAGS=$CFLAGS

+SAVE_LIBS=$LIBS

+

+CFLAGS="$CFLAGS $PYTHON_INCLUDES"

+LIBS="$LIBS $PYTHON_LIBS"

+

+AC_TRY_LINK(,[ ], AC_MSG_RESULT(yes); python_includes="ok", AC_MSG_ERROR([no: PYTHON DISABLED], 6))

+

+if test "X$python_includes" != "Xok" ; then

+  CFLAGS="$SAVE_CFLAGS"

+  LIBS="$SAVE_LIBS"

 fi

 #CFLAGS=`(python-config --includes)`

@@ -631,7 +643,6 @@ if test "$class_driver" = "no" && test "

    AS_IF([test "x$FOUND_HEADER" != "xyes"],

           [AC_MSG_ERROR([cannot find python-devel support], 6)])

 fi

-CFLAGS="$save_CFLAGS"

 if test "$hpijs_only_build" = "no" && test "$scan_build" = "yes" && test "$hpcups_only_build" = "no"; then

    AC_CHECK_LIB([sane], [sane_open], [LIBS="$LIBS"], [AC_MSG_ERROR([cannot find sane-backends-devel support (or --disable-scan-build)], 12)])