Sync with gnulib

This incorporates:
2016-03-22 gitlog-to-changelog: suppress ignored chatter
2016-03-21 sys_select: port to new Cygwin
* build-aux/gitlog-to-changelog, doc/misc/texinfo.tex:
* lib/sys_select.in.h: Copy from gnulib.

1 files changed, 6 insertions, 4 deletions

diff --git a/lib/sys_select.in.h b/lib/sys_select.in.h
index a557e04ab5d..9a2622f9789 100644
--- a/lib/sys_select.in.h
+++ b/lib/sys_select.in.h
@@ -81,8 +81,9 @@
    of 'struct timeval', and no definition of this type.
    Also, Mac OS X, AIX, HP-UX, IRIX, Solaris, Interix declare select()
    in <sys/time.h>.
-   But avoid namespace pollution on glibc systems.  */
-# ifndef __GLIBC__
+   But avoid namespace pollution on glibc systems and "unknown type
+   name" problems on Cygwin.  */
+# if !(defined __GLIBC__ || defined __CYGWIN__)
 #  include <sys/time.h>
 # endif
 
@@ -100,10 +101,11 @@
 #endif
 
 /* Get definition of 'sigset_t'.
-   But avoid namespace pollution on glibc systems.
+   But avoid namespace pollution on glibc systems and "unknown type
+   name" problems on Cygwin.
    Do this after the include_next (for the sake of OpenBSD 5.0) but before
    the split double-inclusion guard (for the sake of Solaris).  */
-#if !(defined __GLIBC__ && !defined __UCLIBC__)
+#if !((defined __GLIBC__ || defined __CYGWIN__) && !defined __UCLIBC__)
 # include <signal.h>
 #endif