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Re: [perl #132955] USE_CPLUSPLUS build broken in 5.27 blead and all5.26 stables

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Dave Mitchell
April 23, 2018 13:39
Re: [perl #132955] USE_CPLUSPLUS build broken in 5.27 blead and all5.26 stables
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On Mon, Apr 23, 2018 at 05:59:21AM -0700, Steve Hay via RT wrote:
> On Fri, 20 Apr 2018 17:23:46 -0700, bulk88 wrote:
> > On Thu, 19 Apr 2018 23:08:56 -0700, bulk88 wrote:
> > > I still can't build C++ perl because of PL_nan wrong declaration by
> > > jhi
> > >
> > > . The lvalue cast and C++11 postfix operator space issues were found
> > > by others, not me.
> > 
> > I'm starting to think
> >
> > needs to be reverted outright. PL_nan/PL_inf must be either const and
> > in globvar.sym or perlvars.h and RT inited. There are only 2 kinds of
> > global vars in perl API. PL_nan/PL_inf should match existing
> > infrastructure. Not special casing itself. Something about the jhi
> > vax-netbsd series of commits doesn't make sense. On a C++ build, why
> > does it matter if perl's core symbols are C mangled or C++ mangled by
> > the CC/LD, aslong as its all declared the same way in every .o? How
> > does the rest of globvar.sym global vars work with just EXTCONST (C++
> > sym name) but not "EXTERN_C const" on vax-netbsd platform? Is POSIX.xs
> > compiled in C mode even on a C++ perl or something with EUMM CFLAGS
> > changes? Is anyone but JHI able to compile perl for vax-netbsd?
> I asked Jarkko about that commit. He suggested reverting it, but double checking that the whole thing then still builds also for Linux using g++.
> Is anyone able to do that? (Presumably I could do it on dromedary, but wouldn't really know what I'm doing -- I've not built perl on anything UNIXy for many, many years.)

I'll have a look

All wight. I will give you one more chance. This time, I want to hear
no Wubens. No Weginalds. No Wudolf the wed-nosed weindeers.
    -- Life of Brian

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