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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc')
-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc7
1 files changed, 6 insertions, 1 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc
index 50c30e9c7b9..246380a7350 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-glib.cc
@@ -370,7 +370,12 @@ static hb_unicode_funcs_t *static_glib_funcs = nullptr;
static
void free_static_glib_funcs (void)
{
- hb_unicode_funcs_destroy (static_glib_funcs);
+retry:
+ hb_unicode_funcs_t *glib_funcs = (hb_unicode_funcs_t *) hb_atomic_ptr_get (&static_glib_funcs);
+ if (!hb_atomic_ptr_cmpexch (&static_glib_funcs, glib_funcs, nullptr))
+ goto retry;
+
+ hb_unicode_funcs_destroy (glib_funcs);
}
#endif