Re: ‘void free(void*)’ called on unallocated object ‘yyssa’ [-Wfree-nonheap-object]

[Christoph Grüninger]

Hi Akim,
thank you for having a look and extracting the relevant code. GCC 11 is 
wrong (together with myself); I am going to open a GCC 11 bug tonight. 
Let us hope they will fix is before their release in April or March, 
then Paul don't need to figure out how to work around this in Bison.

> > 2. Re-generated the file cmCommandArgumentParser.y with
> >      bison --yacc --name-prefix=cmCommandArgument_yy 
> > --defines=cmCommandArgumentParserTokens.h -ocmCommandArgumentParser.cxx 
> > cmCommandArgumentParser.y
>
> It makes little sense to use --yacc while using Bison features.  Why
> would you do that?  Bison generates warnings for Bison features used
> in Yacc mode.

I just followed the how-to from CMake. I will update it accordingly.

> > 3. I removed the lines 1717 and 1745 as the label yyerrlab1 must be defined.
>
> Could you please clarify what you are doing here, and why?

The lines contained an #if 0 / #endif that hid the label "yyerrlab1:" 
from the compiler. When compiling it the compiler complained that in 
line 1362 "goto yyerrlab1;" used an undefined label. That's also 
described in the first line of the .y file.
Could handle this differently?

Bye
Christoph

--
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Lebe wie im Paradies, womit hab' ich das verdient?
Die Wahrheit ist: Hab' ich nicht, ich bin nur reicher beschenkt
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