Re: [RFC] building postgres with meson -v8

On 12.05.22 21:30, Andres Freund wrote:
> On 2022-05-11 12:18:58 +0200, Peter Eisentraut wrote:
>> I fixed the Perl detection issue in my macOS environment that I had reported
>> a while ago.
> 
> Hm. I wonder if it's right to check with is_file() - perhaps there are
> platforms that have split off the include directory?

The existing code uses "test -f", so using is_file() would keep it 
working the same way.

>> After that, these configure options don't have an equivalent yet:
>>
>> --disable-rpath
>> --enable-profiling
>> --disable-thread-safety
>> --with-libedit-preferred
>>
>> The first three overlap with meson built-in functionality, so we would need
>> to check whether the desired functionality is available somehow.
> 
> Which builtin functionality does --enable-profiling overlap with? There's a
> coverage option, perhaps you were thinking of that?

I saw an option about "profile guided optimization" (b_pgo), which seems 
possibly related.

> I don't think we should add --disable-thread-safety, platforms without it also
> aren't going to support ninja / meson... IIRC Thomas was planning to submit a
> patch getting rid of it independently...

sure

>>  From 049b34b6a8dd949f0eb7987cad65f6682a6ec786 Mon Sep 17 00:00:00 2001
>> From: Peter Eisentraut <peter@eisentraut.org>
>> Date: Wed, 11 May 2022 09:06:13 +0200
>> Subject: [PATCH 3/9] meson: prereq: Refactor dtrace postprocessing make rules
>>
>> Move the dtrace postprocessing sed commands into a separate file so
>> that it can be shared by meson.  Also split the rule into two for
>> proper dependency declaration.
> 
> Hm. Using sed may be problematic on windows...

This code is only used when dtrace is enabled, which probably doesn't 
apply on Windows.