From: Ulrich Müller <ulm@gentoo.org>
Date: Wed, 12 Feb 2020 02:08:37 +0000 (+0100)
Subject: mount-boot.eclass: Make awk expression work with mawk.
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=53c9011002e037ee2b8d97a5ee5657be6f4dd275;p=gentoo.git

mount-boot.eclass: Make awk expression work with mawk.

gensub() is a GNUism and doesn't exist in all awk variants. Use a loop
instead.

Tested with gawk, nawk, mawk, and busybox awk.

Closes: https://bugs.gentoo.org/709322
Signed-off-by: Ulrich Müller <ulm@gentoo.org>
---

diff --git a/eclass/mount-boot.eclass b/eclass/mount-boot.eclass
index c5c6b69b063e..00b367793252 100644
--- a/eclass/mount-boot.eclass
+++ b/eclass/mount-boot.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2019 Gentoo Authors
+# Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: mount-boot.eclass
@@ -62,8 +62,8 @@ mount-boot_check_status() {
 		return
 	fi
 
-	local procstate=$(awk '$2 == "/boot" \
-		{ print gensub(/^(.*,)?(ro|rw)(,.*)?$/, "\\2", 1, $4); exit }' \
+	local procstate=$(awk '$2 == "/boot" { split($4, a, ","); \
+		for (i in a) if (a[i] ~ /^r[ow]$/) { print a[i]; break }; exit }' \
 		/proc/mounts || die "awk failed")
 
 	if [[ -z ${procstate} ]] ; then