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#!/bin/sh
# Poor man's placeholder for help2man invocation on systems lacking perl;
# it generates a dummy man page stating that a proper one could not be
# generated, and redirecting the user back to either the info
# documentation or the '--help' output.
set -e; set -u
fatal_ ()
{
printf '%s: %s\n' "$0" "$*" >&2
exit 1
}
basename_ ()
{
printf '%s\n' "$1" | sed 's,.*/,,'
}
output=
source="GNU coreutils"
while test $# -gt 0; do
case $1 in
# Help2man options we recognize and handle.
--output=*) output=`expr x"$1" : x'--output=\(.*\)'`;;
--output) shift; output=$1;;
--source=*) source=`expr x"$1" : x'--source=\(.*\)'`;;
--source) shift; source=$1;;
# Recognize (as no-op) other help2man options that might be used
# in the makefile.
--include=*);;
--include) shift;;
--info-page=*);;
-*) fatal_ "invalid or unrecognized help2man option '$1'";;
--) shift; break;;
*) break;;
esac
shift
done
test $# -gt 0 || fatal_ "missing argument"
test $# -le 1 || fatal_ "too many non-option arguments"
baseout=`basename_ "$output"`
sed 's/^/WARNING: /' >&2 <<END
Cannot create proper '$baseout' man page, since perl is missing or
inadequate on this system. Creating a stub man page instead.
END
progname=`basename_ "$1"`
year=`LC_ALL=C date +%Y`
bs='\'
cat >"$output" <<END
.TH "$progname" 1 "$year" "$source" "User Commands"
.SH NAME
$progname $bs- a $source program
.SH DESCRIPTION
.B OOOPS!
Due to the lack of perl on the build system, we were
unable to create a proper manual page for
.B $progname.
For concise option descriptions, run
.IP
.B env $progname --help
.PP
The full documentation for
.B $progname
is maintained as a Texinfo manual, which should be accessible
on your system via the command
.IP
.B info coreutils $bs(aq$progname invocation$bs(aq
END
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