libedit

• musl defines __STDC_ISO_10646__ in stdc-predef.h which gets included by gcc by default (unlike clang)
• readline/history.h and readline/tilde.h can be symlinked to editline/readline.h
• Prefer symlinks to libedit.so instead of linker scripts INPUT(-ledit)
• macos uses libedit as its default line editing and history library

References

• https://github.com/chimera-linux/cports/blob/master/main/libedit
• https://github.com/chimera-linux/libedit-chimera
• https://github.com/CTSRD-CHERI/cheribsd/blob/master/bin/sh/dot.shrc
• https://github.com/ralish/dotfiles/blob/main/editline/.editrc
• https://github.com/sabotage-linux/sabotage/blob/master/pkg/libedit
• https://github.com/wikimedia/mediawiki-vagrant/blob/master/puppet/modules/misc/files/editrc
• https://man.openbsd.org/editline.7
• https://unix.stackexchange.com/questions/548708/editrc-changing-keybindings-in-etc-editrc