* Add volatile to sync svotval.h with otvmod.c
diff --git a/include/freetype/internal/services/svotval.h b/include/freetype/internal/services/svotval.h
index 88da778..fa95ca4 100644
--- a/include/freetype/internal/services/svotval.h
+++ b/include/freetype/internal/services/svotval.h
@@ -29,7 +29,7 @@ FT_BEGIN_HEADER
typedef FT_Error
- (*otv_validate_func)( FT_Face face,
+ (*otv_validate_func)( FT_Face volatile face,
FT_UInt ot_flags,
FT_Bytes *base,
FT_Bytes *gdef,