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[libvirt] [PATCH] build: avoid strerror_r pitfalls

In particular, this guarantees that virStrerror always gives a
useful result.

* .gnulib: Update to latest, for (lots of) strerror_r fixes.

This patch removes the need for Daniel's proposal:

Now gnulib guarantees that strerror_r will never leave garbage
in the buffer.

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

* .gnulib 2c25c9e...f4c4af0 (67):
  > docs: document recently fixed glibc printf bug
  > closein-tests: convert to init.sh
  > yesno-tests: convert to init.sh
  > atexit-tests: ensure reliable exit status
  > strerror_r-posix: Respect rules for use of AC_LIBOBJ.
  > strerror_r: fix missing header
  > strerror_r: fix AIX test failures
  > strerror_r: fix Solaris test failures
  > strerror_r: enforce POSIX recommendations
  > test-perror2.c: avoid warning about unused variable
  > perror: avoid spurious test failure on HP-UX
  > tests: fix logic bug in init.sh
  > utimensat: do not reference an out-of-scope buffer
  > opendir-safer.c: don't clobber errno; don't close negative FD
  > update from texinfo
  > Fix recent ChangeLog entry.
  > idcache: Fix module description.
  > gnulib-tool: fix portability problem with MacOS sed
  > hash: Simplify autoconf macro.
  > getugroups: Fix module description.
  > linkat: Simplify autoconf macro.
  > linkat, renameat: Update dependencies.
  > maint.mk: more tight_scope improvements
  > maint.mk: generalize/improve the tight-scope rule
  > verify: fix bug when gnulib <assert.h> is also included
  > * doc/intprops.texi: fix typo in copyright date
  > xgetcwd: Simplify autoconf macro.
  > New module 'mktime-internal'.
  > timegm: Correct mktime replacement statements.
  > timegm: Simplify autoconf macro.
  > clock-time: change to LGPLv2+.
  > strerror_r: Fix comments.
  > relocatable-prog-wrapper: Fix possible link error.
  > relocatable-prog-wrapper: Assume strerror() exists.
  > select: Simplify replacement idiom.
  > mkdir-p: Simplify autoconf macro.
  > Fix some mistakes in ChangeLog entries.
  > strerror_r: avoid clobbering strerror on cygwin
  > mkdtemp: Use gnulib naming conventions.
  > strerror_r: avoid corrupting errno on Solaris
  > strerror_r: avoid compiler warning
  > strerror_r: simplify AIX code.
  > test-perror: avoid spurious failure on FreeBSD
  > strerror_r-posix: Remove unused dependencies.
  > intprops: remove assumption about A|B representation
  > perror: work around FreeBSD bug
  > test-perror: check for strerror interactions
  > test-perror: rewrite to use init script
  > maint: replace misused "a" with "an"
  > maint: correct misuse of "a" and "an"
  > intprops-tests: work around HP-UX 11.23 cc bug with constants
  > intprops: work around IRIX 6.5 cc bug with 0u - 0u + -1
  > intprops-tests: revert unsigned part of previous change
  > strerror_r: Work around strerror_r() change in Cygwin 1.7.8.
  > strerror_r: guarantee unchanged errno
  > strerror_r: Reorder #if blocks.
  > perror: Avoid clobbering the strerror buffer when possible.
  > strerror_r: fix on newer cygwin
  > strerror_r: Avoid clobbering the strerror buffer when possible.
  > strerror_r: Fix test failure on mingw.
  > strerror: relax test for Solaris
  > strerror: enforce POSIX ruling on strerror(0)
  > intprop-tests: port to older and more-pedantic compilers
  > intprops: work around C compiler bugs
  > intprops: TYPE_IS_INTEGER, TYPE_SIGNED not integer constant exprs
  > strerror_r: Avoid clobbering the strerror buffer when possible.
  > fnmatch: avoid compiler warning

diff --git a/.gnulib b/.gnulib
index 2c25c9e..f4c4af0 160000
--- a/.gnulib
+++ b/.gnulib
@@ -1 +1 @@
-Subproject commit 2c25c9ebe8db1415bfde25f0a451767332c8cf59
+Subproject commit f4c4af09bcf3f0497dc3347ecc0a0b3c9ee1ff63

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