Re: PostgreSQL cannot be compiled on RISC-V

On Sat, Nov 19, 2016 at 10:08:07PM -0500, Tom Lane wrote:
> "Richard W.M. Jones" <rjones(at)redhat(dot)com> writes:
> > ../../../src/include/storage/s_lock.h:890:2: error: #error PostgreSQL does not have native spinlock support on this platform. To continue the compilation, rerun configure using --disable-spinlocks. However, performance will be poor. Please report this to pgsql-bugs(at)postgresql(dot)org(dot)
>
> Hi Richard,
>
> What's a RISC-V, and can you provide some gcc assembler implementing
> spinlocks for it? See commentary and code for other platforms in
> src/include/storage/s_lock.h.

That attached patch allows PostgreSQL to compile successfully. I'm
still examining the test failures, but I think they are irrelevant to
this.

Please note that you also need to update config/config.{sub,guess} to
the latest versions from upstream
(https://www.gnu.org/software/gettext/manual/html_node/config_002eguess.html)
since your current versions are too old to understand the riscv{32,64}
architectures.

Rich.

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