commit 84dc82d7e8757e9f77fbe9586bd2670e805777d9
author kxxt <rsworktech@gmail.com> Sat Oct 01 00:15:39 2022 +0000
committer Gopher Robot <gobot@golang.org> Thu Oct 06 21:19:17 2022 +0000
tree c3ff4b76777661359c9a35ecf5d13f74e8a73e7f
parent f11e5e49a4ec85883999349b0dc6373df034397b

all: use grep -E/-F instead of fgrep/egrep

egrep and fgrep are obsolescent now.

This PR updates all egrep and fgrep commands to grep -E and grep -F.
Running egrep/fgrep command with grep v3.8 will output the following warning to stderr:
egrep: warning: egrep is obsolescent; using grep -E

see also:
https://www.phoronix.com/news/GNU-Grep-3.8-Stop-egrep-fgrep
https://lists.gnu.org/archive/html/info-gnu/2022-09/msg00001.html

Change-Id: I0c6b6a039063d6aee94e8500971001996d4e498c
GitHub-Last-Rev: 1eee6147666503d274b244a65daa58cded466704
GitHub-Pull-Request: golang/sys#137
Reviewed-on: https://go-review.googlesource.com/c/sys/+/432835
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>

plan9/mkerrors.sh

diff --git a/plan9/mkerrors.sh b/plan9/mkerrors.sh
index 85309c4..526d04a 100755
--- a/plan9/mkerrors.sh
+++ b/plan9/mkerrors.sh
@@ -126,7 +126,7 @@
 signals=$(
 	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
 	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
+	grep -v 'SIGSTKSIZE\|SIGSTKSZ\|SIGRT' |
 	sort
 )
 
@@ -136,7 +136,7 @@
 	sort >_error.grep
 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
 	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
+	grep -v 'SIGSTKSIZE\|SIGSTKSZ\|SIGRT' |
 	sort >_signal.grep
 
 echo '// mkerrors.sh' "$@"

unix/mkerrors.sh

diff --git a/unix/mkerrors.sh b/unix/mkerrors.sh
index 2ab44aa..7456d9d 100755
--- a/unix/mkerrors.sh
+++ b/unix/mkerrors.sh
@@ -642,7 +642,7 @@
 signals=$(
 	echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
 	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	grep -v 'SIGSTKSIZE\|SIGSTKSZ\|SIGRT\|SIGMAX64' |
 	sort
 )
 
@@ -652,7 +652,7 @@
 	sort >_error.grep
 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
 	awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
-	egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
+	grep -v 'SIGSTKSIZE\|SIGSTKSZ\|SIGRT\|SIGMAX64' |
 	sort >_signal.grep
 
 echo '// mkerrors.sh' "$@"