zero@oberon ~/dev/e17/e17/libs/ewl $ ewl_test --ewl-backtrace "text editor"

***** Ewl Developer Warning ***** :
 To find where this is occurring set a breakpoint
 for the function ewl_print_warning.
        This program is calling:

        ewl_container_parent_of();

        With the paramter:

        c

        as the wrong type. ((null)) instead of (widget).
        Please fix your program.

***** Backtrace *****
/usr/local/lib/libewl.so.0(ewl_backtrace+0x69) [0xb7f5ce79]
/usr/local/lib/libewl.so.0(ewl_container_parent_of+0x326) [0xb7f2e1d6]
/usr/local/lib/libewl.so.0(ewl_embed_mouse_move_feed+0xea) [0xb7f3673a]
/usr/local/lib/libewl.so.0(ewl_ev_x_mouse_move+0x63) [0xb7f41913]
/usr/local/lib/libecore.so.1(_ecore_event_call+0x21d) [0xb79fa5ed]
/usr/local/lib/libecore.so.1 [0xb79fe9fe]
/usr/local/lib/libecore.so.1(ecore_main_loop_begin+0x4c) [0xb79fe01c]
/usr/local/lib/libewl.so.0(ewl_main+0x32) [0xb7f59ac2]
ewl_test [0x804c6b2]
/lib/libc.so.6(__libc_start_main+0xa5) [0xb7763555]

***** Ewl Developer Warning ***** :
 To find where this is occurring set a breakpoint
 for the function ewl_print_warning.
        This program is calling:

        ewl_callback_call();

        With the paramter:

        w

        as the wrong type. ((null)) instead of (widget).
        Please fix your program.

***** Backtrace *****
/usr/local/lib/libewl.so.0(ewl_backtrace+0x69) [0xb7f5ce79]
/usr/local/lib/libewl.so.0(ewl_callback_call+0x120) [0xb7f1e1b0]
/usr/local/lib/libewl.so.0(ewl_embed_mouse_move_feed+0x125) [0xb7f36775]
/usr/local/lib/libewl.so.0(ewl_ev_x_mouse_move+0x63) [0xb7f41913]
/usr/local/lib/libecore.so.1(_ecore_event_call+0x21d) [0xb79fa5ed]
/usr/local/lib/libecore.so.1 [0xb79fe9fe]
/usr/local/lib/libecore.so.1(ecore_main_loop_begin+0x4c) [0xb79fe01c]
/usr/local/lib/libewl.so.0(ewl_main+0x32) [0xb7f59ac2]
ewl_test [0x804c6b2]
/lib/libc.so.6(__libc_start_main+0xa5) [0xb7763555]

***** Ewl Developer Warning ***** :
 To find where this is occurring set a breakpoint
 for the function ewl_print_warning.
        This program is calling:

        ewl_callback_call_with_event_data();

        With the paramter:

        w

        as the wrong type. ((null)) instead of (widget).
        Please fix your program.

***** Backtrace *****
/usr/local/lib/libewl.so.0(ewl_backtrace+0x69) [0xb7f5ce79]
/usr/local/lib/libewl.so.0(ewl_callback_call_with_event_data+0x321) [0xb7f1e581]
/usr/local/lib/libewl.so.0(ewl_callback_call+0x6b) [0xb7f1e0fb]
/usr/local/lib/libewl.so.0(ewl_embed_mouse_move_feed+0x125) [0xb7f36775]
/usr/local/lib/libewl.so.0(ewl_ev_x_mouse_move+0x63) [0xb7f41913]
/usr/local/lib/libecore.so.1(_ecore_event_call+0x21d) [0xb79fa5ed]
/usr/local/lib/libecore.so.1 [0xb79fe9fe]
/usr/local/lib/libecore.so.1(ecore_main_loop_begin+0x4c) [0xb79fe01c]
/usr/local/lib/libewl.so.0(ewl_main+0x32) [0xb7f59ac2]
ewl_test [0x804c6b2]