Problems with compositing-enabled metacity in gnome enviroment

[Darren Hoo]

Hi,

   with /apps/metacity/general/compositing_manager set to true
and (setf (frame-parameter nil 'alpha) 94), once  Emacs  is minimized
it can no longer be restored. This is the commit that introduces the bug:

Author: Stefan Monnier <address@hidden>  2010-12-19 13:43:42
Committer: Stefan Monnier <address@hidden>  2010-12-19 13:43:42
Parent: e92a45321e9a32e78cd4233d0a030f435ffa487f (Add missing
ChangeLog entry for r102680.)
Branches: master, remotes/origin/lexbind-new, remotes/origin/master,
remotes/origin/window-pub
Follows: EMACS_PRETEST_23_2_91
Precedes:

    Minor clean up to silence some gcc warnings.
    * src/window.c (Fset_window_buffer):
    * src/xterm.c (x_set_frame_alpha): Restructure code to silence
    compiler warning.
    (handle_one_xevent): Remove unused var `p'.
    (do_ewmh_fullscreen): Remove unused var `lval'.
    (xembed_set_info): Remove unused var `atom'.
    * src/textprop.c (Fremove_list_of_text_properties): Add braces to silence
    compiler warning.
    * src/fontset.c (fontset_id_valid_p, dump_fontset):
    * src/ftfont.c (ftfont_drive_otf): Modernize k&r declaration.
    * src/eval.c (Feval, Ffuncall): Avoid unneeded gotos.
    * src/dispnew.c (update_frame, update_frame_1): Compile the `do_pause'
    label only when it's used.
    * src/image.c (x_create_bitmap_from_xpm_data):
    * src/dispextern.h (x_create_bitmap_from_xpm_data): Use const char** like
    its callers.
    * src/coding.c (detect_coding_utf_16): Remove unused vars `src_base' and
    `consumed_chars'.
    (DECODE_EMACS_MULE_21_COMPOSITION): Remove unused var `charbuf_base'.
    (decode_coding_emacs_mule): Remove unused label `retry'.
    (detect_eol): Add parens to silence compiler warning.
    * src/alloc.c (bytes_used_when_reconsidered): Move to the #ifdef where
    it's used to silence the compiler.
    (make_number): Modernize k&r declaration.
    (mark_char_table): Add parens to silence compiler warning.