+++ title = "`BOOST_OUTCOME_DISABLE_EXECINFO`" description = "If defined, disables the use of the `` header (or the win32 emulation)." +++ If defined, disables the use of the `` header (or the win32 emulation). Some embedded Linux toolchains do not define ``, thus disabling C++ exceptions on those toolchains produces a failure to find this file. Avoid that problem by defining this macro to disable stack backtrace support entirely. *Overridable*: Define before inclusion. *Default*: Defined if `__ANDROID__` is defined, else undefined. *Header*: ``