From 8126e9241491a3082d54381f50c64c905c20c62a Mon Sep 17 00:00:00 2001
From: Syrone Wong <wong.syrone@gmail.com>
Date: Fri, 13 May 2016 22:05:46 +0800
Subject: [PATCH] scripts/ipkg-build: fix deprecated GZIP environment variable
 warning

According to gzip 1.7 release note:

The GZIP environment variable is now obsolescent; gzip now warns if
it is used, and rejects attempts to use dangerous options or operands.
You can use an alias or script instead.

Fix this warning by using pipe instead

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>
---
 scripts/ipkg-build | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/ipkg-build b/scripts/ipkg-build
index 73cd87ceea19..e026c7a157bd 100755
--- a/scripts/ipkg-build
+++ b/scripts/ipkg-build
@@ -15,7 +15,7 @@ FIND="${FIND:-$(which gfind)}"
 TAR="${TAR:-$(which tar)}"
 SVN="$(which svn)"
 GIT="$(which git)"
-export GZIP="-n"
+GZIP="$(which gzip)"
 
 # look up date of last commit
 if [ -d "$TOPDIR/.git" ]; then
@@ -139,20 +139,20 @@ mkdir $tmp_dir
 
 echo $CONTROL > $tmp_dir/tarX
 # Preserve permissions (-p) when creating data.tar.gz as non-root user
-( cd $pkg_dir && $TAR $ogargs -X $tmp_dir/tarX --format=gnu --sort=name -czpf $tmp_dir/data.tar.gz --mtime="$TIMESTAMP" . )
+( cd $pkg_dir && $TAR $ogargs -X $tmp_dir/tarX --format=gnu --sort=name -cpf -  --mtime="$TIMESTAMP" . | $GZIP -n - > $tmp_dir/data.tar.gz )
 
 installed_size=`stat -c "%s" $tmp_dir/data.tar.gz`
 sed -i -e "s/^Installed-Size: .*/Installed-Size: $installed_size/" \
 	$pkg_dir/$CONTROL/control
 
-( cd $pkg_dir/$CONTROL && $TAR $ogargs --format=gnu --sort=name -czf $tmp_dir/control.tar.gz --mtime="$TIMESTAMP" . )
+( cd $pkg_dir/$CONTROL && $TAR $ogargs --format=gnu --sort=name -cf -  --mtime="$TIMESTAMP" . | $GZIP -n - > $tmp_dir/control.tar.gz )
 rm $tmp_dir/tarX
 
 echo "2.0" > $tmp_dir/debian-binary
 
 pkg_file=$dest_dir/${pkg}_${version}_${arch}.ipk
 rm -f $pkg_file
-( cd $tmp_dir && $TAR $ogargs --format=gnu --sort=name -zcf $pkg_file --mtime="$TIMESTAMP" ./debian-binary ./data.tar.gz ./control.tar.gz )
+( cd $tmp_dir && $TAR $ogargs --format=gnu --sort=name -cf -  --mtime="$TIMESTAMP" ./debian-binary ./data.tar.gz ./control.tar.gz | $GZIP -n - > $pkg_file )
 
 rm $tmp_dir/debian-binary $tmp_dir/data.tar.gz $tmp_dir/control.tar.gz
 rmdir $tmp_dir