Major update to the xzgrep and other scripts based on

the latest versions found from gzip CVS repository.

configure will try to find a POSIX shell to be used by
the scripts. This should ease portability on systems
which have pre-POSIX /bin/sh.

xzgrep and xzdiff support .xz, .lzma, .gz, and .bz2 files.
xzmore and xzless support only .xz and .lzma files.

The name of the xz executable used in these scripts is
now correct even if --program-transform-name has been used.

1 files changed, 0 insertions, 67 deletions

diff --git a/src/scripts/xzdiff b/src/scripts/xzdiff
deleted file mode 100755
index 50179bb9..00000000
--- a/src/scripts/xzdiff
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/bin/sh
-# sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh
-
-# xzcmp and xzdiff are used to invoke the cmp or the diff pro-
-# gram  on compressed files.  All options specified are passed
-# directly to cmp or diff.  If only 1 file is specified,  then
-# the files compared  are file1 and an uncompressed file1.xz.
-# If two files are specified, then they are  uncompressed  and
-# fed  to  cmp  or  diff.  The exit status from cmp or diff is
-# preserved.
-
-prog=`echo $0 | sed 's|.*/||'`
-case "$prog" in
-  *cmp) comp=${CMP-cmp}   ;;
-  *)    comp=${DIFF-diff} ;;
-esac
-
-OPTIONS=
-FILES=
-for ARG
-do
-    case "$ARG" in
-    -*)	OPTIONS="$OPTIONS $ARG";;
-     *)	if test -f "$ARG"; then
-            FILES="$FILES $ARG"
-        else
-            echo "${prog}: $ARG not found or not a regular file"
-	    exit 2
-        fi ;;
-    esac
-done
-if test -z "$FILES"; then
-	echo "Usage: $prog [${comp}_options] file [file]"
-	exit 2
-fi
-set $FILES
-if test $# -eq 1; then
-	FILE=`echo "$1" | sed 's/[-.][almtxz]*$//'`
-	xz -dc "$1" | $comp $OPTIONS - "$FILE"
-
-elif test $# -eq 2; then
-	case "$1" in
-        *[-.]xz | *.txz | *[-.]lzma | *.tlz)
-                case "$2" in
-	        *[-.]xz | *.txz | *[-.]lzma | *.tlz)
-			F=`echo "$2" | sed 's|.*/||;s|[-.][almtxz]*||'`
-			TF=`/usr/bin/mktemp ${TMPDIR:-/tmp}/"$F".XXXXXXXXXX` || exit 1
-			trap 'rm -f "$TF"; exit 2' EXIT HUP INT PIPE TERM
-			xz -dc -- "$2" > "$TF" || exit
-                        xz -dc -- "$1" | $comp $OPTIONS - "$TF"
-                        STAT="$?"
-			rm -f "$TF" || STAT=2
-			trap EXIT HUP INT PIPE TERM
-			exit $STAT;;
-
-                *)      xz -dc -- "$1" | $comp $OPTIONS - "$2";;
-                esac;;
-        *)      case "$2" in
-	        *[-.]xz | *.txz | *[-.]lzma | *.tlz)
-                        xz -dc -- "$2" | $comp $OPTIONS "$1" -;;
-                *)      $comp $OPTIONS "$1" "$2";;
-                esac;;
-	esac
-else
-	echo "Usage: $prog [${comp}_options] file [file]"
-	exit 2
-fi