Clang and windows headers

[Yaakov (Cygwin/X)]

On Thu, 10 Jan 2013 17:20:25 +0100, Angelo Graziosi wrote:
> Trying to compile a C++ source file including windows.h header with 
> clang++, fails with
> 
>    #error Must define a target architecture

Thanks for the report.  Clang defines _X86_ only for MinGW targets, not
taking into account that we also need to work with w32api headers.  I
would say that its fortunate that this should be easy to patch, until...

> Indeed now ROOT uses clang tools to build (GCC is used to bootstrap 
> ROOT's patched version of CLANG...). Nevertheless the same errors occurs 
> using Cygwin's CLANG as the above simple test case shows...

You have *got* to be kidding me.  Forking an entire compiler within a
source package just for building that package?  I'll admit I didn't see
that coming.

Anyways, I'll fix this shortly.


Yaakov

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