[PATCH] build: update to latest gnulib

[Eric Blake]

* gnulib: Update to latest.
* bootstrap.conf (gnulib_modules): Add xgetgroups.
---

Okay to push?

* gnulib a81348d...d6d01fd (70):
  > tests: drop unused link dependency
  > hash, mgetgroups: drop xalloc dependency
  > xalloc-oversized: new module
  > utimecmp: drop dependency on xmalloc
  > getcwd: fix mingw bugs
  > Typo in comment.
  > mkstemps: Ensure declaration on MacOS X 10.5.
  > mkstemp: More documentation.
  > mkstemp: Tweak configure message when cross-compiling.
  > clean-temp: Clarify what it does.
  > fchdir: avoid extra chdir and fix test
  > filenamecat-lgpl: fix licence
  > linkat, renameat: add missing dependency
  > tests: reduce dependencies
  > save-cwd: reduce default dependency
  > getcwd: enhance tests
  > getcwd-lgpl: new module
  > getcwd: tweak comments
  > mkstemp: replace if system version uses wrong permissions
  > passfd: avoid compiler warning
  > Change gnulib-tool to support NetBSD's join
  > mkstemp: mention clean-temp module
  > inttypes: also provide default values for 32-bit tests
  > strtoumax: remove dependency on strtoimax
  > inttypes-incomplete: new module
  > inttypes: omit now-redundant strtoimax and strtoumax work
  > strtoimax, strtoumax: simplify, port to HP-UX 11.00 64-bit
  > gnumakefile: Replace TAB with SPCs.
  > strtol, strtoul: Mark modules as obsolete.
  > strtod: Remove check for strtod, unless supporting old platforms.
  > strcase: Make module obsolete.
  > dup2: Remove check for dup2, unless supporting old obsolete platforms.
  > strnlen: Avoid memchr related link error on old obsolete platforms.
  > Revert "use _GL_ATTRIBUTE_CONST and _GL_ATTRIBUTE_PURE"
  > maint.mk: makefile_at_at_check extend and clean up
  > use _GL_ATTRIBUTE_CONST and _GL_ATTRIBUTE_PURE
  > strtoul: remove dependency on strtol
  > strtoull: remove dependency on strtoul
  > strtoll: remove dependency on strtol
  > inttypes: Move some configure check to module 'imaxdiv'.
  > inttypes: Move some configure check to module 'imaxabs'.
  > inttypes: Remove configure tests that are not needed since 2009-12-31.
  > * modules/strnlen (Depends-on): Remove memchr.
  > strtol: remove dependency on wchar
  > passfd: fix test regression on Linux
  > passfd: speed up configure and drop unused code
  > passfd: allow compilation on mingw
  > sys_uio: new module
  > useless-if-before-free: avoid false-positive
  > doc: update users.txt.
  > ioctl: Remove link dependency on native Windows.
  > Move the support of O_NONBLOCK in open() to the 'open' module.
  > nonblocking tests: Tweak comment.
  > pipe2: Simplify code.
  > nonblocking: Add comment.
  > nonblocking: Add tests for sockets.
  > nonblocking: Add tests for pipes.
  > autoupdate
  > gettext: Clarify the needed programmer actions.
  > strchrnul: Tweak last commit.
  > strchrnul: work around cygwin bug
  > Don't require lib/stdio-write.c when only module 'stdio' is used.
  > Support non-blocking pipe I/O in read() on native Windows.
  > Support non-blocking pipe I/O in write() on native Windows.
  > wchar: Ensure that wchar_t gets defined on uClibc.
  > safe-write, full-read: Avoid unnecessary compilation units.
  > Support non-blocking pipe I/O and SIGPIPE in pwrite().
  > Support non-blocking pipe I/O in write() on native Windows.
  > autoupdate
  > autoupdate

 bootstrap.conf |    1 +
 gnulib         |    2 +-
 2 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/bootstrap.conf b/bootstrap.conf
index 5633e13..6ff11a4 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -241,6 +241,7 @@ gnulib_modules="
   xalloc
   xfreopen
   xgetcwd
+  xgetgroups
   xgethostname
   xmemcoll
   xnanosleep
diff --git a/gnulib b/gnulib
index a81348d..d6d01fd 160000
--- a/gnulib
+++ b/gnulib
@@ -1 +1 @@
-Subproject commit a81348d2e136b0f2de110b49a5d0dfa5d7d76f71
+Subproject commit d6d01fdde58da00d0d839711097e3acb83f61754
-- 
1.7.4.4