40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
diff --git a/gfx/cairo/cairo/src/cairo-xlib-display.c b/gfx/cairo/cairo/src/cairo-xlib-display.c
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--- a/gfx/cairo/cairo/src/cairo-xlib-display.c
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+++ b/gfx/cairo/cairo/src/cairo-xlib-display.c
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@@ -216,6 +216,8 @@ _cairo_xlib_display_get (Display *dpy)
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XExtCodes *codes;
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int major_unused, minor_unused;
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+ static int buggy_repeat_force = -1;
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+
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/* There is an apparent deadlock between this mutex and the
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* mutex for the display, but it's actually safe. For the
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* app to call XCloseDisplay() while any other thread is
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@@ -308,6 +310,26 @@ _cairo_xlib_display_get (Display *dpy)
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if (VendorRelease (dpy) <= 40500000)
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display->buggy_repeat = TRUE;
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}
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+
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+ /* XXX workaround; see https://bugzilla.mozilla.org/show_bug.cgi?id=413583 */
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+ /* If buggy_repeat_force == -1, then initialize.
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+ * - set to -2, meaning "nothing was specified", and we trust the above detection.
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+ * - if MOZ_CAIRO_BUGGY_REPEAT is '0' (exactly), then force buggy repeat off
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+ * - if MOZ_CAIRO_BUGGY_REPEAT is '1' (exactly), then force buggy repeat on
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+ */
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+ if (buggy_repeat_force == -1) {
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+ const char *flag = getenv("MOZ_CAIRO_FORCE_BUGGY_REPEAT");
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+
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+ buggy_repeat_force = -2;
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+
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+ if (flag && flag[0] == '0')
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+ buggy_repeat_force = 0;
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+ else if (flag && flag[0] == '1')
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+ buggy_repeat_force = 1;
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+ }
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+
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+ if (buggy_repeat_force != -2)
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+ display->buggy_repeat = (buggy_repeat_force == 1);
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display->next = _cairo_xlib_display_list;
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_cairo_xlib_display_list = display;
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