Test failures due to Unrecognized command line option '-t' about nng HOT 9 CLOSED

UPD. Well, it fails with gcc-12.2.0 as well, so the issue is not caused by an outdated GCC.

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Apparently it simply does not exist: https://gcc.gnu.org/onlinedocs/gcc/Option-Summary.html#Option-Summary

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I don't think we're passing -t to gcc.

Rather this looks like a CMake / CTest problem?

Can you describe how you configured this? What version of CMake are you using? How did you execute these tests?

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Ah, this looks like the code from cmake/NNGHelpers.cmake -- that -t is not appropriate anymore.

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I think I missed this because these days I run all my tests using Ninja, and somehow this is overlooked.

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Wait... -t -v works for me.

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Aha!

The problem is your environment lacks POSIX timekeeping, and is not Windows.

Building for Snow Leopard is the root of the problem. I could fix this if I was really so inclined -- by removing the -t (which isn't strictly necessary but it does give us some help during the test runs -- I like to see the timing in test runs), but honestly the net benefits here fall far short of the functionality I'd lose. I'm simply not very interested in supporting such an old version of macOS.

I don't have a system that will run it, and I don't have easy access to a copy of Snow Leopard even if I did.

Sorry... I highly recommend moving to something that isn't 15 years old.

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Newer versions of macOS closed many of the core problems with timekeeping and synchronization (Pthreads are abysmal on older versions of Darwin, as they are "fair share" and you have to take a context switch even when acquiring or releasing an uncontended mutex.)

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@gdamore Thank you for detailed reply. Just to be sure, it works with GCC being the compiler, not Clang?
-time is supported on 10.5 and 10.6, if it is the same, I can get time stats when building on it.

P.S. It is impossible to run anything newer than 10.6 on PowerPC machines, since, sadly, Apple dropped the arch support in some of the mid-way builds of 10.6 and completely removed PPC code in 10.7.

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