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Handle dynamic stack size on GLIBC > 2.33 #2317

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Handle dynamic stack size on GLIBC > 2.33 #2317

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8 changes: 7 additions & 1 deletion extras/catch_amalgamated.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3750,8 +3750,14 @@ namespace Catch {
};

// 32kb for the alternate stack seems to be sufficient. However, this value
// is experimentally determined, so that's not guaranteed.
// is experimentally determines, so that's not guaranteed.
#if defined(_SC_SIGSTKSZ_SOURCE) || defined(_GNU_SOURCE)
// on glibc > 2.33 this is no longer constant, see
// https://sourceware.org/git/?p=glibc.git;a=blob;f=NEWS;h=85e84fe53699fe9e392edffa993612ce08b2954a;hb=HEAD
static constexpr std::size_t sigStackSize = 32768;
#else
static constexpr std::size_t sigStackSize = 32768 >= MINSIGSTKSZ ? 32768 : MINSIGSTKSZ;
#endif

static SignalDefs signalDefs[] = {
{ SIGINT, "SIGINT - Terminal interrupt signal" },
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