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bug#39082: Inconsolata v3.000 has too wide spacing


From: Andrea Greselin
Subject: bug#39082: Inconsolata v3.000 has too wide spacing
Date: Mon, 13 Jan 2020 17:56:20 +0100

I've never built Emacs before (nor any other non-trivial program for that matter). If you can instruct me on doing that I will try, otherwise I don't have time to learn by myself now, I'm sorry.

Andrea

On Mon, 13 Jan 2020 at 17:43, Robert Pluim <address@hidden> wrote:
>>>>> On Mon, 13 Jan 2020 18:18:50 +0200, Eli Zaretskii <address@hidden> said:

    >> From: Robert Pluim <address@hidden>
    >> Cc: Andrea Greselin <address@hidden>,  address@hidden
    >> Date: Mon, 13 Jan 2020 10:27:32 +0100
    >>
    Eli> So the question now becomes how come we get such a large value.  Looks
    Eli> like we somehow use the space-width value instead of the character
    Eli> glyph's width, not sure why.  I guess stepping through the code I've
    Eli> shown from xdisp.c is still necessary to understand this.
    >>
    >> I can reproduce this, but I donʼt know how much effort we should spend
    >> getting to the bottom of it: a Cairo-enabled build (ie !XFT) does not
    >> have this problem.

    Eli> So I guess this is some kind of Xft bug?  In that case, I think it
    Eli> would be enough to describe the Cairo workaround in etc/PROBLEMS, and
    Eli> close the bug with that.

Itʼs either a bug or a limitation in the Xft interface. I see the
width of characters coming back from XftGlyphExtents as 26, with all
the other metrics as 0, so I donʼt think thereʼs much we can do.

Andrea, does building emacs-27 configure '--with-cairo' fix this for
you?

Robert

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