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bug#37786: 26.3; Emacs crashes when calling function to decode string


From: Allen Li
Subject: bug#37786: 26.3; Emacs crashes when calling function to decode string
Date: Mon, 21 Oct 2019 20:44:09 -0700
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux)

Robert Pluim <rpluim@gmail.com> writes:

>>>>>> On Fri, 18 Oct 2019 18:18:34 -0700, Allen Li <darkfeline@felesatra.moe> 
>>>>>> said:
>     Allen> That gives me the following output:
>
>     Allen> Loading file 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Regular.otf/0
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-It.otf/0 matches new
>     Allen> Loading file 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-It.otf/0
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Light.otf/0 matches new
>     Allen> Loading file 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Light.otf/0
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Bold.otf/0 matches new
>     Allen> Loading file 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Bold.otf/0
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Regular.otf/0 matches 
> existing (2)
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Light.otf/0 matches 
> existing (2)
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Bold.otf/0 matches 
> existing (2)
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Regular.otf/0 matches 
> existing (3)
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Light.otf/0 matches 
> existing (3)
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Bold.otf/0 matches 
> existing (3)
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Regular.otf/0 matches 
> existing (4)
>     Allen> FontFile 
> /usr/share/fonts/adobe-source-code-pro/SourceCodePro-Regular.otf/0 matches 
> existing (4)
>     Allen> FontFile /usr/share/fonts/noto/NotoColorEmoji.ttf/0 matches new
>     Allen> Loading file /usr/share/fonts/noto/NotoColorEmoji.ttf/0
>
>     Allen> and then Emacs hangs at this point.
>
> Hmm, that configuration of emacs should not be loading NotoColorEmoji
> (unless you've somehow arranged for xft-ignore-color-fonts to be
> nil). What's your version of fontconfig (probably from
> /usr/include/fontconfig/fontconfig.h)?

I haven't touched xft-ignore-color-fonts (and it reproduces from emacs -Q)

#define FC_MAJOR        2
#define FC_MINOR        13
#define FC_REVISION     91

>
> (note that building emacs-27 with cairo enabled should solve this:
> that doesnʼt use XFT).
>
> Robert





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