Hi Daniel,
> On 09/21/2017 05:18 PM, Daniel Santos wrote:
>> So libgcc doesn't use a config.in. :(
>
> Scratch that, I forgot that we're using gcc/config.in via auto-host.h.
> So I only have to add this to gcc/configure.ac and it will be available
> for my libgcc header -- this is what I used to sniff out support for the
> .hidden directive.
Please don't go that route: it's totally the wrong direction. There's
work going on to further decouple libgcc from gcc-private headers and
configure results. libgcc already has its own configure tests for
assembler features, and its own config.in. What's wrong with adapting
libitm's avx test in libitm/acinclude.m4 (LIBITM_CHECK_AS_AVX) for
libgcc? Should be trivial...
Rainer
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Rainer Orth, Center for Biotechnology, Bielefeld University
