[libvirt] [PATCH 1/2] build: update to latest gnulib

[Eric Blake]

In particular, pull in gnulib's fix for the broken AC_HEADER_MAJOR
macro in autoconf.

Signed-off-by: Eric Blake <eblake at redhat.com>
---

* .gnulib a2a3943...a512e04 (42):
  > sys_types: avoid glibc 2.25 warnings about major()
  > mountlist: include sysmacros.h for glibc
  > extensions: port to more ISO C TSes
  > intprops: new macro TYPE_WIDTH
  > extensions: port to recent ISO C TRs
  > update from texinfo
  > update from texinfo
  > dfa: port to Solaris 9
  > autoupdate
  > strverscmp: avoid link failure on OS X
  > dfa: new module, importing grep's DFA matcher
  > getprogname-tests: don't depend on assert-h
  > getprogname-tests: work also when EXEEXT is nonempty
  > getprogname: fix errors in previous change
  > parse-datetime: restrict debug output to input string
  > flexmember: new macro FLEXALIGNOF
  > getprogname: port to systems with __argv (mingw, msvc)
  > flexmember: port better to GCC + valgrind
  > getprogname: port to Solaris 10
  > stdalign: correct mistake in alignof doc
  > getprogname.h: declare with _GL_ATTRIBUTE_PURE, when required
  > main.mk: remove sc_program_name
  > Port tests away from progname
  > Port modules to use getprogname explicitly
  > getprogname: new module
  > autoupdate
  > manywarnings: add -fno-common
  > parse-datetime: Fix typo.
  > intprops: tune INT_NEGATE_OVERFLOW for GCC 5 and 6
  > strverscmp: sync with glibc
  > xalloc-oversized.h: port __builtin_mul_overflow change to GCC 6.2.0
  > intprops.h: port recent changes to GCC 6.2.0
  > intprops.h: use __typeof__ with GCC 7
  > intprops.h, xalloc-oversized.h: work with gcc 7
  > intprops.h: fix missing-backslash problems
  > autoupdate
  > intprops: fix paren typo on old platforms
  > intprops: port to OpenVMS
  > parse-datetime: improve debug implementation
  > c-strcase-tests: port to EBCDIC
  > sigpipe-tests: fix typo
  > canonicalize-lgpl: fix errno after malloca fails

 .gnulib | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.gnulib b/.gnulib
index a2a3943..a512e04 160000
--- a/.gnulib
+++ b/.gnulib
@@ -1 +1 @@
-Subproject commit a2a39436b65f329630df4a93ec4e30aeae403c54
+Subproject commit a512e041120e9012e69afa2f5c3adc196ec4999a
-- 
2.7.4