OpenTTD-patches/cmake/FindSigaltstack.cmake

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CMake
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include(CheckCXXSourceCompiles)
check_cxx_source_compiles("
#include <signal.h>
#include <stdlib.h>
int main() {
stack_t ss;
ss.ss_sp = calloc(SIGSTKSZ, 1);
ss.ss_size = SIGSTKSZ;
ss.ss_flags = 0;
sigaltstack(&ss, nullptr);
return 0;
}"
SIGALTSTACK
)
if (SIGALTSTACK_FOUND)
add_compile_options(
-DWITH_SIGALTSTACK
)
endif (SIGALTSTACK_FOUND)