[Libclc-dev] Question regarding change to configure.py

[Tom Stellard]

On Wed, Sep 04, 2013 at 10:40:04PM +0100, Jeroen Ketema wrote:
> 
> Hi,
> 
> I've a question regarding commit c2bb4658f (configure: Fix build when clang is installed to a non-standard prefix).
> 
> I wonder if the change made in this commit is actually correct. My setup is as follows:
> 
> * The default compiler on my system is a clang/llvm 3.2 compiler
> 
> * I want to build libclc for a clang/llvm 3.3 compiler (which I built from source)
> 
> * The clang/llvm 3.3 compiler cannot use the default C++ library on my system (using it results in compile errors due to incompatibilities in the header files)
> 
> The change causes prepare-builtins to be built with the same compiler that libclc is being built for (by pointing to the correct llvm-config). However, now prepare-builtins doesn't build any longer, because the clang/llvm 3.3 compiler does not have access to a functioning C++ library. Hence, it seems that prepare-builtins should be built using the same compiler used to build clang/llvm 3.3 and not the clang/llvm 3.3 compiler, or am I mistaken?
> 

You should be able to build prepare-builtins with any compiler even gcc.
Your problem seems to me more like a configuration issue on your system
rather than a bug in the libclc configure script, but then again I don't
quite understand what problem you are having with clang.

-Tom