[Bug]: xcalc fails to launch: No font found

[b2jammer]

Problem description

Xcalc fails to launch because it can't find a usable font:

Warning: Cannot convert string "8x13" to type FontStruct
Warning: Unable to load any usable ISO8859 font
Warning: Unable to load any usable ISO8859 font
Warning: Missing charsets in String to FontSet conversion
Error: Aborting: no font found

What steps will reproduce the bug?

From a clean Termux install:

pkg update && pkg upgrade -y
pkg install -y x11-repo
pkg install -y termux-x11-nightly xorg-xcalc xbitmaps
termux-x11 -ac :0 &
sleep 3
export DISPLAY=:0
xcalc

What is the expected behavior?

xcalc launches and is displayed on the termux-x11 X server.

System information

Termux Variables:
TERMUX_API_VERSION=0.50.1
TERMUX_APK_RELEASE=F_DROID
TERMUX_APP_PACKAGE_MANAGER=apt
TERMUX_APP_PID=27983
TERMUX_IS_DEBUGGABLE_BUILD=0
TERMUX_MAIN_PACKAGE_FORMAT=debian
TERMUX_VERSION=0.118.1
TERMUX__USER_ID=0
Packages CPU architecture:
aarch64
Subscribed repositories:
# sources.list
deb https://plug-mirror.rcac.purdue.edu/termux/termux-main stable main
# x11-repo (sources.list.d/x11.list)
deb https://packages-cf.termux.dev/apt/termux-x11/ x11 main
Updatable packages:
All packages up to date
termux-tools version:
1.44.3
Android version:
14
Kernel build information:
Linux localhost 5.10.198-android12-9-28575149-abS901USQS6EXG8 #1 SMP PREEMPT Tue Jul 23 06:07:24 UTC 2024 aarch64 Android
Device manufacturer:
samsung
Device model:
SM-S901U
LD Variables:
LD_LIBRARY_PATH=
LD_PRELOAD=/data/data/com.termux/files/usr/lib/libtermux-exec.so
Installed termux plugins:
com.termux.x11 versionCode:15
com.termux.styling versionCode:1000
com.termux.api versionCode:51

[2096779623]

It will search for fonts in $PREFIX/share/fonts . You only need to install one of the following packages:

xorg-fonts-100dpi
xorg-fonts-75dpi

[b2jammer]

xorg-fonts-75dpi was already installed as a dependency of xorg-xcalc. I ran pkg install xorg-fonts-100dpi then tried xcalc again, but still got the same error.

I've attached the file tree for $PREFIX/share/fonts in case there's something missing:

pkg install -y tree
tree $PREFIX/share/fonts > font_list.txt

font_list.txt

[2096779623]

xorg-fonts-75dpi was already installed as a dependency of xorg-xcalc. I ran pkg install xorg-fonts-100dpi then tried xcalc again, but still got the same error.

I've attached the file tree for $PREFIX/share/fonts in case there's something missing:

pkg install -y tree
tree $PREFIX/share/fonts > font_list.txt

font_list.txt

Try installing ttf-dejavu .

[b2jammer]

Try installing ttf-dejavu .

Also automatically installed. Here's what I have installed so far: apt list --installed > packages.txt

packages.txt

[FlipnotypicalRodent32]

I was able to reproduce it, too.
However, not only is xcalc affected. It appears that xmessage (also from X.org packages) fails to load as well.

This can be seen by trying to click the About button in fluxbox, which tries to execute (fluxbox -v; fluxbox -info | sed 1d) | xmessage -file - -center and will cause a similar but short error to appear on a terminal (I’ve launched fluxbox from a kitty session to make it visible).