bug#16215: new snapshot available: grep-2.15.15-178ed

[Jim Meyering]

In preparation for upcoming 2.16 bug-fix-only release,
here's a snapshot of the latest.

grep snapshot:
  http://meyering.net/grep/grep-ss.tar.xz      1.3 MB
  http://meyering.net/grep/grep-ss.tar.xz.sig
  http://meyering.net/grep/grep-2.15.15-178ed.tar.xz

NEWS:

** Bug fixes

  Fix gnulib-provided maint.mk so that the release procedure described
  in README-release actually does what we want.  Before that fix, that
  procedure resulted in a grep-2.15 tarball that would lead to a grep
  binary whose --version-reported version number was 2.14.51...

  The fix to make \s and \S work with multi-byte white space broke
  the use of each shortcut whenever followed by a repetition operator.
  For example, \s*, \s+, \s? and \s{3} would all malfunction in a
  multi-byte locale.  [bug introduced in grep-2.15]

  The fix to make grep -P work better with UTF-8 made it possible for
  grep to evoke a larger set of PCRE errors, some of which could trigger
  an abort.  E.g., this would abort:
    printf '\x82'|LC_ALL=en_US.UTF-8 grep -P y
  Now grep handles arbitrary PCRE errors.  [bug introduced in grep-2.15]

  Handle very long lines (2GiB and longer) on systems with a deficient
  read system call.

Commits in grep since v2.15:

Jim Meyering (14):
      maint: post-release administrivia
      maint: avoid automake deprecation warning re ACLOCAL_AMFLAGS
      build: update gnulib submodule to latest
      maint: NEWS: document a release-related bug fix
      grep: fix regression involving \s and \S
      grep: fix regression with -P vs. invalid UTF-8 input
      dfa: avoid undefined behavior of "1 << 31"
      maint: minor cleanup: xmalloc+strcpy -> xmemdup
      tests: port to non-GNU sed
      grep: handle lines longer than INT_MAX on more systems
      maint: indent cpp directives to reflect nesting
      pcre: avoid a nominal leak
      maint: add comments and split some long lines
      tests: avoid FP failure due to exhausted memory

Santiago Ruano Rincón (1):
      pcre: tell grep -P to relax its stance on invalid multibyte chars


Changes in gnulib since v2.15:

* gnulib 974b76b...4c2f17d (4):
  > maint.mk: fix "release" target to build _version
  > maint.mk: get current gnulib revision correctly.
  > install-reloc: Support multi-binary installation.
  > selinux-h: really build without selinux when library is missing