compiler (in)-compatibilities

[Lionel Elie Mamane]

Yes, I know. I will not fix firebird's code, they will hopefully do it
"soon". I can add some work-around compiler flags, though.

I found out about GCC_VERSION and am now using that to conditionally
enable the work-around compiler flags.

On Wed, Aug 17, 2016 at 07:28:19PM +0200, Luc Castermans wrote:
> actually case 1 is wrong code. Compiler is correct and code should be
> corrected.
> 
> regards,
> 
> Luc
> 
> Op 17 aug. 2016 19:18 schreef "Lionel Elie Mamane" <lionel at mamane.lu>:
> 
> > Hi,
> >
> > Short version: do we have a way to include compiler flags only with
> > some compiler version?
> >
> > Long version: So, firebird currently is incompatible with GCC 6. AFAIK
> > there are two breaker issues:
> >
> > 1) compiled code aborts in free() because it free()s an address that
> >    was not malloc()ed
> >
> > 2) code that does not compile
> >
> >
> > Issue 1 is fixed by adding
> >  -fno-sized-deallocation -fno-delete-null-pointer-checks
> > to CXXFLAGS.
> >
> > Issue 2 is fixed by backporting an upstream commit from their master
> > branch.
> >
> > Number 2 I can do, no problem. But number 1 I feel I shouldn't do
> > unconditionally, because another compiler than GCC 6 probably will not
> > know these flags? Any advice there?
> >
> > --
> > Lionel
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> >