CMake: cofigure failure (Windows)

[Yu Jin]

Am So., 15. Nov. 2020 um 22:47 Uhr schrieb Kornel Benko <kornel at lyx.org>:

> Am Sun, 15 Nov 2020 22:01:16 +0100
> schrieb Yu Jin <yu_jin at lyx.org>:
>
> > Am So., 15. Nov. 2020 um 21:28 Uhr schrieb Kornel Benko <kornel at lyx.org
> >:
> >
> > > Am Sun, 15 Nov 2020 20:16:49 +0100
> > > schrieb Yu Jin <yu_jin at lyx.org>:
> > >
> > > > Am So., 15. Nov. 2020 um 20:15 Uhr schrieb Yu Jin <yu_jin at lyx.org>:
> > > > > I agree with CMAKE_PREFIX_PATH. I think that GNUWIN32_DIR was a
> good
> > > way
> > > > > of handling that (I assume it was that way), because the
> dependencies
> > > are
> > > > > needed anyway to run LyX and/or build the installer and we offer
> them
> > > for
> > > > > download. May I ask why it got removed?
> > > > > I mean it actually makes sense to add path to Perl to the
> pathprefix,
> > > but
> > > > > it is an individual setting if the Windows PATH variable does not
> > > contain
> > > > > it. So I would need to make that setting in CMake anyway, so why
> not
> > > just
> > > > > point it directly to GNUWIN32_DIR instead of Perl?
> > > > >
> > > > Sorry, I meant "I agree with the CMAKE_PREFIX_PATH part".
> > >
> > > I don't understand. The GNUWIN32_DIR is set at CMakeLists.txt:9 (as it
> was
> > > before), I
> > > didn't remove this setting.
> > >
> >
> > Oh, I see. Well CMake used to give an error saying "GNUWIN32_DIR" not
> found
> > if it was not explicitly specified in the CMake GUI. Now it is completely
> > missing in the GUI and setting it manually does not change anything. I
> > meant to ask about this change.
> > But I just compared 2.3.x with master real quick, I think this find Perl
> > thing is new, am I right?
>
> No, it is not new, only at different place. See (in 2.3.x)
> development/checkurls/CMakeLists.txt:8
>
> > Because I can't find anything related to Perl in
> > 2.3.x. I guess we should fix it like we do with Python:
> >
> > if(GNUWIN32_DIR)
> >    list(APPEND CMAKE_PROGRAM_PATH "${GNUWIN32_DIR}/Python" )
> > endif()
> >
> > For that we would need to restore the thing where CMake asks about
> > GNUWIN32_DIR, because now, even if I specify it manually, I guess it will
> > be overwritten at line 9. I don't know exactly how it was before, but
> this
> > line does not exist 2.3.x.
>
> git blame gives the answer:
> 78a361778f2 (Thibaut Cuvelier       2020-08-29 22:58:23 +0200    9)
> set(GNUWIN32_DIR
> D:/LyX/lyx-unstable/lyx-windows-deps-msvc2017)
>

Ok then, I guess I can try to make a patch, I just don't understand one
thing. In 2.3.x when I initially run configure, it gives me an error that
the GNUWIN32_DIR is missing, but it displays all the other options in the
CMake GUI too. In master (if I delete the line 9) currently it only
displays just a few options (I attached 2 screenshots), so I would need to
specify GNUWIN32_DIR and then hit configure, then I will get another error
and only then I see the other options. i mean I need to hit configure 2
times instead of 1. In master it used to be the way it is in 2.3.x too not
long ago, but it is not anymore. It is just a QOL change, but I want to ask
if it is possible to restore the old behavior.
-- 
    Eugene
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