Mercurial > gnulib
diff build-aux/git-version-gen @ 18311:79b2ca5b5982
git-version-gen: avoid undefined shift
Problem reported by Mosè Giordano in:
http://lists.gnu.org/archive/html/bug-gnulib/2016-05/msg00012.html
* build-aux/git-version-gen: Avoid undefined behavior if invoked
with --prefix or --fallback but without a later argument. While
we're at it, omit unnecessary quotes.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sun, 08 May 2016 11:38:22 -0700 |
parents | 6ee445128d2a |
children | 12df2165ec1c |
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--- a/build-aux/git-version-gen Sun May 08 09:11:48 2016 -0700 +++ b/build-aux/git-version-gen Sun May 08 11:38:22 2016 -0700 @@ -1,6 +1,6 @@ #!/bin/sh # Print a version string. -scriptversion=2016-01-11.22; # UTC +scriptversion=2016-05-08.18; # UTC # Copyright (C) 2007-2016 Free Software Foundation, Inc. # @@ -101,8 +101,8 @@ case $1 in --help) echo "$usage"; exit 0;; --version) echo "$version"; exit 0;; - --prefix) shift; prefix="$1";; - --fallback) shift; fallback="$1";; + --prefix) shift; prefix=${1?};; + --fallback) shift; fallback=${1?};; -*) echo "$0: Unknown option '$1'." >&2 echo "$0: Try '--help' for more information." >&2