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[Patch] Fix old 'tail +' syntax in gzexe.in

From: Matthew Burgess
Subject: [Patch] Fix old 'tail +' syntax in gzexe.in
Date: Sun, 26 Nov 2006 19:58:45 +0000
User-agent: Thunderbird (X11/20061117)

Hi Paul,

The ChangeLog mentions 'Don't assume "tail +22" works; POSIX removed this.'.

A simple grep shows the following two occurrences of the old syntax still exist though:

gzexe.in:if tail +$skip "$0" | "BINDIR"/gzip -cd > "$gztmp"; then
gzexe.in:    if $tail +$skip "$i" | gzip -cd > $tmp; then

The attached patch fixes that, and also changes the first instance to call $tail rather than the hard coded 'tail'.


diff -Naur gzip-1.3.6.orig/gzexe.in gzip-1.3.6/gzexe.in
--- gzip-1.3.6.orig/gzexe.in    2006-11-20 08:40:33.000000000 +0000
+++ gzip-1.3.6/gzexe.in 2006-11-26 19:55:08.000000000 +0000
@@ -139,7 +139,7 @@
 then gztmp=`tempfile -p gztmp` || exit
 else gztmp=/tmp/gztmp$$
-if tail +$skip "$0" | "BINDIR"/gzip -cd > "$gztmp"; then
+if $tail -n +$skip "$0" | "BINDIR"/gzip -cd > "$gztmp"; then
   umask $umask
   /bin/chmod 700 "$gztmp"
   prog=`echo "$gztmp" | /bin/sed 's|[^/]*$||'; echo $0 | /bin/sed 's|.*/||'`
@@ -169,7 +169,7 @@
     if sed -e 1d -e 2q "$i" | grep "^skip=[0-9][0-9]*$" >/dev/null; then
       eval `sed -e 1d -e 2q "$i"`
-    if $tail +$skip "$i" | gzip -cd > $tmp; then
+    if $tail -n +$skip "$i" | gzip -cd > $tmp; then
       echo ${x}: $i probably not in gzexe format, file unchanged.

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