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Document unsupported color Emoji on OpenBSD

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Bug#72268

* etc/PROBLEMS (Runtime problems related to font handling):
Document unsupported color Emoji on OpenBSD.
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Manuel Giraud 2024-07-25 13:57:59 +02:00 • committed by Eli Zaretskii
parent db1f749db5
commit d787817076
1 changed files with 21 additions and 0 deletions
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21
etc/PROBLEMS
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@ -1274,6 +1274,27 @@ Emacs will select some other font instead.
The only workaround is not to choose such font variants as the default The only workaround is not to choose such font variants as the default
font when running Emacs on MS-Windows. font when running Emacs on MS-Windows.
** On OpenBSD, color Emoji are not supported by default.
The system's FreeType library is not built with libpng support, so it
can't display color emoji. This is due to the fact that, on OpenBSD,
libpng is provided through ports and that a base component cannot depend
on that.
However, you can add support for PNG in the system's FreeType library by
following those steps:
1. Install the 'png' package.
2. Read the release(8) man page for how to get Xenocara sources.
3. Patch the file
"/usr/xenocara/lib/freetype/include/freetype/config/ftoption.h"
by uncommenting the "#define FT_CONFIG_OPTION_USE_PNG" line.
4. Patch the file "/usr/xenocara/lib/freetype/Makefile" by
appending "-L/usr/local/lib -lpng" to LDADD and appending
"-I/usr/local/include" to CPPFLAGS.
5. Build and install Xenocara (also, see release(8)).
Note that this support will be gone after each OpenBSD's system upgrade.
* Internationalization problems * Internationalization problems
** M-{ does not work on a Spanish PC keyboard. ** M-{ does not work on a Spanish PC keyboard.