[bug-idutils] build/gnulib adjustments

[Jim Meyering]

Mostly infrastructure and build-related improvements:

[PATCH 1/9] tests: disable gnulib's get-rusage-as test
[PATCH 2/9] build: fix man-page-building and cross-check rules
[PATCH 3/9] build: turn off two of gcc's warning options
[PATCH 4/9] build: add const and pure attributes, per gcc
[PATCH 5/9] build: work around new warning/suggestion to use "pure"
[PATCH 6/9] build: update bootstrap from gnulib, and adapt
[PATCH 7/9] maint: make copyright statements more consistent; update
[PATCH 8/9] tests: adapt framework for upcoming automake-1.12
[PATCH 9/9] maint: use gnulib's readme-release module

 README-release            |   85 ---------------
 b/.gitignore              |   33 ++----
 b/bootstrap               |  250 ++++++++++++++++------------------------------
 b/bootstrap.conf          |    3
 b/cfg.mk                  |    3
 b/configure.ac            |    2
 b/gnulib                  |    2
 b/lib/Makefile.am         |   11 ++
 b/libidu/idfile.h         |   14 +-
 b/libidu/idu-hash.c       |    2
 b/libidu/scanners.h       |    3
 b/libidu/walker.c         |   29 ++---
 b/man/Makefile.am         |   30 +----
 b/src/lid.c               |   14 +-
 b/src/mkid.c              |   16 +-
 b/testsuite/CuSkip.pm     |   39 +++++++
 b/testsuite/Makefile.am   |    2
 b/testsuite/check.mk      |   27 ++--
 b/testsuite/files0-from   |    4
 b/testsuite/init.sh       |  117 ++++++++++++++++++++-
 b/testsuite/shell-or-perl |  121 ++++++++++++++++++++++
 bootstrap.conf            |   10 -
 src/mkid.c                |   18 ++-
 23 files changed, 471 insertions(+), 364 deletions(-)