Re: Lemon crashing on Solaris? (was Re: [Wireshark-commits] buildbot failure in Wireshark (development) on Solaris-10-SPARC)

[Guy Harris <guy () alum mit edu>]

On Nov 24, 2013, at 2:21 PM, Guy Harris <guy () alum mit edu> wrote:

> However, the Sun^WOracle C compiler might also accept some of those flags, and it might generate code that causes a 
> SIGABRT on SPARC:

That might be -ftrapv, which appears to me to be mutually-exclusive with -fwrapv; -ftrapv says "trap on signed integer 
overflow" and -fwrapv means "wrap around on signed integer overflow", and I don't think you can do both, other than 
"trap and, if somebody returns from the trap handler, wrap around".

I suspect most code we're using expects wraparound, either explicitly or implicitly.

I don't think the MIT CSAIL paper was saying "use all the GCC flags we mentioned", especially given that using both 
-ftrapv and -fwrapv doesn't seem to make sense.

I've removed -ftrapv; we'll see what that does.

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