run sysconf-requiring test on systems that support it

[Alexandre Oliva]

On Mar 24, 2021, Uros Bizjak <ubizjak@gmail.com> wrote:
> On Mar 24, 2021, Uros Bizjak <ubizjak@gmail.com> wrote:

>> There are several other tests in gcc.target/i386 directory that call sysconf:

Ooh, indeed, thanks, good catch.

The reason I didn't catch them was that the full test results analysis
that got me started at it was in a gcc-10 branch, that doesn't have
those other tests.  In the trunk, I only ran regression testing for the
patch, so I didn't notice that there were other fails, before and after,
for the same reasons.

> Other than above, can you please introduce
> check_effectve_target_sysconf to lib/target-supports.exp (similar to
> existing check_effective_target_mmap) and use it instead of target
> selectors?

I'll take care of that, and of the fails I'd missed.  Thanks!

> The testsuite is moving away from target checks to feature tests, so
> bonus points if you also convert existing testcases to a new feature
> test.

*nod*

-- 
Alexandre Oliva, happy hacker  https://FSFLA.org/blogs/lxo/
   Free Software Activist         GNU Toolchain Engineer
        Vim, Vi, Voltei pro Emacs -- GNUlius Caesar