[Buildroot] [PATCH] stella: fix compiler search in configure script
Peter Korsgaard
peter at korsgaard.com
Wed Aug 17 18:15:01 UTC 2016
>>>>> "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!
--
Venlig hilsen,
Peter Korsgaard
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