make[1]: Entering directory 'src' egrep: warning: egrep is obsolescent; using grep -E grep: warning: stray \ before # egrep: warning: egrep is obsolescent; using grep -E grep: warning: stray \ before # egrep: warning: egrep is obsolescent; using grep -E grep: warning: stray \ before # egrep: warning: egrep is obsolescent; using grep -E grep: warning: stray \ before # egrep: warning: egrep is obsolescent; using grep -E grep: warning: stray \ before # egrep: warning: egrep is obsolescent; using grep -E grep: warning: stray \ before #
* it seems using [font=monospace]egrep[/font] is depreciated and [font=monospace]grep -E[/font] should be used instead. egrep is used quite often:
$ grep --version grep (GNU grep) 3.11 Copyright (C) 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
Written by Mike Haertel and others; see <https://git.savannah.gnu.org/cgit/grep.git/tree/AUTHORS>.
grep -P uses PCRE2 10.44 2024-06-07 $ which grep alias grep='grep --color=auto' /usr/bin/grep $ rpm -qf /usr/bin/grep grep-3.11-7.fc40.x86_64
[font=monospace]egrep[/font] is still used in quite some [font=monospace]platform*.mk[/font] files and the update_*conf*.sh scripts:
giovanni@Freya:~$ grep --version grep (GNU grep) 3.11 Copyright (C) 2023 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
Written by Mike Haertel and others; see <https://git.savannah.gnu.org/cgit/grep.git/tree/AUTHORS>.
grep -P uses PCRE2 10.42 2022-12-11 giovanni@Freya:~$ which grep /usr/bin/grep