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racket/gui gtk: workaround problem with async IBus input method

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Affects Ubuntu 13.10 and 14.04, especially with multiple processors.

original commit: 3a716b98c0c932465a0e9bd75e9086afd75b32d0
This commit is contained in:
Matthew Flatt 2014-08-29 10:11:25 -06:00
parent 17c089c814
commit d1eb9f9843
1 changed files with 9 additions and 0 deletions
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9
pkgs/gui-pkgs/gui-lib/mred/private/wx/gtk/queue.rkt
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@ -24,6 +24,15 @@
;; ------------------------------------------------------------
;; Gtk initialization
;; When IBus is used for GtkIMContext (see "canvas.rkt"), recent
;; versions may use a asynchronous mode that somehow doesn't
;; cooperate with `g_main_context_query` Specifically, the
;; asynchronous result doesn't wake up a sleeping Racket main
;; thread, and so the effect of a key is delayed. The following
;; enviornment variable is consulted by IBus on startup to
;; disable asynchronous mode.
(putenv "IBUS_ENABLE_SYNC_MODE" "y")
(define-gtk gtk_init_check (_fun (_ptr io _int) (_ptr io _gcpointer) -> _gboolean))
(define-gdk gdk_set_program_class (_fun _string -> _void))