[Buildroot] [PATCH] stella: fix compiler search in configure script
Vlad Zakharov
Vladislav.Zakharov at synopsys.com
Wed Aug 24 16:47:37 UTC 2016
Hi Peter,
This patch was adopted in upstream Stella project:
https://sourceforge.net/p/stella/code/3315/
and will come up in next Stella release.
So it need to be reverted after update to upcoming Stella release.
Thx.
On Wed, 2016-08-17 at 20:15 +0200, Peter Korsgaard wrote:
> >
> > >
> > > >
> > > > >
> > > > > >
> > > > > > "Vlad" == Vlad Zakharov <Vladislav.Zakharov at synopsys.com> writes:
> > In configure script there are some tests that are looking for
> > a suitable compiler. For this purpose script tries to compile
> > and link some C++ code that is hardcoded in the body of script.
>
> > The problem is that only linker flags ($LDFLAGS) are passed to the
> > compiler when the script is compiling test code. Therefore some
> > necessary command line options can be lost and this would lead to
> > errors.
>
> > This exactly happens to ARC:
> > 1. -matomic option is lost as it compiler option,
> > 2. test code compilation fails,
> > 3. the script decides not to use arc-buildroot-linux-uclibc-g++,
> > 4. scipt checks host compiler (x86_64-linux-gnu-g++ in your case),
> > 5. package is being built for x86_64, not for ARC.
>
> > About last 2 steps - I don't know why configure script should try
> > to build stella for host machine. As for me an error should be
> > raised and a build should be stopped. But this is up to stella
> > developers.
>
> > Current patch adds compiler options ($CPPLFAGS) when compiling
>
> You are actually passing CXXFLAGS. Committed with that fixed.
>
> Don't forget to submit the patch upstream!
>
--
Best regards,
Vlad Zakharov <vzakhar at synopsys.com>
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