• Denis Feklushkin (19/19) Jul 18 2020 Hi!
• GoaLitiuM (10/13) Jul 19 2020 I did briefly try to fix D support in Meson for a while, but in
• Rogni (4/7) Jul 21 2020 it's about this bug ? (import dependency from dub if dependency
• GoaLitiuM (12/20) Jul 21 2020 No. Meson builds every D module file separately instead of

Denis Feklushkin <feklushkin.denis gmail.com> writes:

Hi!

In my hobby work on porting druntime to another architectures I 
actively use Meson build system. It allows to build huge 
heterogenous projects very conveniently without losing of control 
over fine-tuning.

But at present there are a lot of D-related issues in the Meson. 
In most cases this issues do not appear (many of us use meson 
with D every day without problems), but when you start using 
Meson to its fullest then issues become irritate require lot of 
hard tricks to get around them.

Support of individual languages ​​is not an biggest goal of Meson 
authors, as I understand. In my experience they are rather to fix 
and add functionality that applies to all supported languages ​, 
but not for some one rarely used. As a result, Meson contains 
serious errors related to D that no one tried to fix.

I wanted to appeal to those who were lucky enough to know both 
Python and D: please try to fix D-related functionality of Meson.

Thanks!

https://github.com/mesonbuild/meson/issues?q=is%3Aopen+is%3Aissue+label%3A%22D+language%22

GoaLitiuM <goalitium dforums.mail.kapsi.fi> writes:

On Saturday, 18 July 2020 at 15:34:14 UTC, Denis Feklushkin wrote:
 I wanted to appeal to those who were lucky enough to know both 
 Python and D: please try to fix D-related functionality of 
 Meson.

I did briefly try to fix D support in Meson for a while, but in 
the end, the lack of tracking module dependencies caused too much 
issues during development, so I just gave up and fell back to 
using DUB. Doing full rebuilds also was not an option for me 
because it would take too much time to compile compared to build 
times with DUB.

I might reconsider contributing for better D support once 
Makefile support (https://github.com/dlang/dmd/pull/11357 or 
https://github.com/dlang/dmd/pull/6961) gets accepted.

Rogni <maktrefa gmail.com> writes:

On Sunday, 19 July 2020 at 16:01:35 UTC, GoaLitiuM wrote:
 I did briefly try to fix D support in Meson for a while, but in 
 the end, the lack of tracking module dependencies caused too 
 much issues during development

it's about this bug ? (import dependency from dub if dependency 
has other dependencies)
https://github.com/mesonbuild/meson/issues/6586

GoaLitiuM <goalitium dforums.mail.kapsi.fi> writes:

On Tuesday, 21 July 2020 at 10:09:23 UTC, Rogni wrote:
 On Sunday, 19 July 2020 at 16:01:35 UTC, GoaLitiuM wrote:
 I did briefly try to fix D support in Meson for a while, but 
 in the end, the lack of tracking module dependencies caused 
 too much issues during development

 it's about this bug ? (import dependency from dub if dependency 
 has other dependencies)
 https://github.com/mesonbuild/meson/issues/6586

No. Meson builds every D module file separately instead of 
building the whole project at once (similar to DUB's 
--build-mode=singleFile switch). When a module which another 
module depends on (imports) gets changed, both modules needs to 
be rebuilt before linking. Meson/ninja has currently no 
information about the dependency graph for situations like these 
so it will only issue rebuild on the changed files only, which 
will lead to bugs and crashes in some cases. The standard way of 
getting this information is through Makefile deps files, but D 
compilers opted for non-standard JSON format for some reason, 
which is not supported pretty much anywhere.