master
mountlist: remove support for IRIX.
Ticket #4965: remove `undelfs` since it's both broken and no longer useful
Reimplement compiler options checking.
buildsys: sync `ax_check_compile_flag.m4` with autoconf archive
Replace [] in AS_HELP_STRING.
buildsys: disable buggy or unhelpful warnings
m4.include/mc-encoding.m4: fix typo.
configure: add --enable-ext2fs-attr/--disable-ext2fs-attr option.
buildsys: move conditions to `m4` file for easier syncronization
Bump minimum GLib requirenment to 2.32.0.
Add some files and code rom Gnulib as preparation to TAR updates.
m4.include/mc-subshell.m4: minor refactoring.
doc: switch links to https://, update or remove dead links
buildsys: fix broken detection for termcap libraries when using slang
Use configure detected or user specified sed in build system
buildsys: make it possible to specify aspell prefix (for macOS)
Ticket #4817: m4.include - add autoconf check for wide/non-wide ncurses
Ticket #3628: ncurses vs ncursesw.
Unify m4 macro names.