Sent upstream by email on 2023-12-16.
--- a/mkversion.sh
+++ b/mkversion.sh
@@ -21,9 +21,9 @@
 
 VERSION_H=${1:-version.h}
 NEWFILE=`mktemp -t version.h.XXXXXXXXXX`
-SED=`which gsed 2> /dev/null`
+SED=`command -v gsed 2> /dev/null`
 if [ $? != 0 ]; then
-	SED=`which sed`
+	SED=`command -v sed`
 fi
 
 vinfo=0
@@ -51,7 +51,7 @@ if [ -f .hg_archival.txt ]; then
 		rm $NEWFILE
 	fi
 elif [ -d .hg ]; then
-	HG=${HG:-`which hg`}
+	HG=${HG:-`command -v hg`}
 	if [ "$?" == "0" ]; then
 		# Check if we have modified, removed, added or deleted files.
 		if [ `$HG st -mard | wc -l` != "0" ]; then