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define: DUK_USE_UNDERSCORE_SETJMP
feature_enables: DUK_OPT_UNDERSCORE_SETJMP
feature_no_default: true # provided by platform unless forced
introduced: 1.1.0
removed: 1.5.0
default: false
tags:
- portability
description: >
Use _setjmp/_longjmp for long control transfers. This ensures signal
mask is not saved which can be a lot faster if setjmp/longjmp saves the
signal mask (this varies between platforms). See comments in
DUK_USE_SETJMP.
Removed in Duktape 1.5.0: edit duk_config.h directly.