On Mon, Jul 30, 2018 at 9:33 PM, Paul Hargrove <[email protected]> wrote:
> XL for little-endian is essentially a difference beast than prior compilers
> with the XL name.
> So, IBM changed the identification macros.
> See the following two docs for more info:
>
> https://www.ibm.com/support/knowledgecenter/en/SSXVZZ_13.1.6/com.ibm.xlcpp1316.lelinux.doc/compiler_ref/opt_qxlcompatmacros.html
> https://www.ibm.com/support/knowledgecenter/en/SSXVZZ_13.1.6/com.ibm.xlcpp1316.lelinux.doc/compiler_ref/xlmacros.html
>
> TL;DR: You can "bring them back" with -qxlcompatmacros
Thanks Paul.
This is frightening and explains the failure:
C/C++ for Linux for little endian distributions, as both
__clang__ and __gcc__ macros are also defined.
More of those stupid LLVM games where they pretend to be another
compiler and then fail to compile the program. Case in point - the
machinery is defining __GNUC__ but can't compile the program when it
states the configuration.
LLVM has screwed us on nearly every platform we support. I suppose
Solaris is next.
Jeff
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