# HG changeset patch
# User Paul Eggert <eggert@cs.ucla.edu>
# Date 1363709327 25200
# Node ID 5a51fb7777a9950502965a043a70bd6ca5e0498b
# Parent  7a2e583edf71c1983f4aa14bab4d646bee4cda7f
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin

Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.

diff -r 7a2e583edf71 -r 5a51fb7777a9 ChangeLog
--- a/ChangeLog	Tue Mar 19 10:47:12 2013 -0700
+++ b/ChangeLog	Tue Mar 19 09:08:47 2013 -0700
@@ -1,3 +1,16 @@
+2013-03-21  Paul Eggert  <eggert@cs.ucla.edu>
+
+	sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
+	Problem reported by Marco Atzeri in
+	<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
+	* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
+	Simply delegate to the system <sys/select.h> in this case too.
+	Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
+	if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
+	be needed on Solaris either.
+	* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
+	Simply delgate to the system <sys/time.h> in this case.
+
 2013-03-19  Karl Berry  <karl@gnu.org>
 
 	* build-aux/gnupload: check for erroneous (with gnupload) use of
diff -r 7a2e583edf71 -r 5a51fb7777a9 lib/sys_select.in.h
--- a/lib/sys_select.in.h	Tue Mar 19 10:47:12 2013 -0700
+++ b/lib/sys_select.in.h	Tue Mar 19 09:08:47 2013 -0700
@@ -21,23 +21,27 @@
 
 /* On OSF/1 and Solaris 2.6, <sys/types.h> and <sys/time.h>
    both include <sys/select.h>.
+   On Cygwin, <sys/time.h> includes <sys/select.h>.
    Simply delegate to the system's header in this case.  */
 #if (@HAVE_SYS_SELECT_H@                                                \
-     && ((defined __osf__ && defined _SYS_TYPES_H_ && defined _OSF_SOURCE) \
+     && ((defined __osf__ && defined _SYS_TYPES_H_                      \
+          && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H         \
+          && defined _OSF_SOURCE)                                       \
          || (defined __sun && defined _SYS_TYPES_H                      \
              && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE)   \
-                 || defined __EXTENSIONS__)))                           \
-     && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H)
+                 || defined __EXTENSIONS__))))
 
 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H
 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
 
 #elif (@HAVE_SYS_SELECT_H@                                              \
-       && ((defined __osf__ && defined _SYS_TIME_H_ && defined _OSF_SOURCE) \
+       && (defined _CYGWIN_SYS_TIME_H                                   \
+           || (defined __osf__ && defined _SYS_TIME_H_                  \
+               && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H    \
+               && defined _OSF_SOURCE)                                  \
            || (defined __sun && defined _SYS_TIME_H                     \
                && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE) \
-                   || defined __EXTENSIONS__)))                         \
-       && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H)
+                   || defined __EXTENSIONS__))))
 
 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H
 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@
diff -r 7a2e583edf71 -r 5a51fb7777a9 lib/sys_time.in.h
--- a/lib/sys_time.in.h	Tue Mar 19 10:47:12 2013 -0700
+++ b/lib/sys_time.in.h	Tue Mar 19 09:08:47 2013 -0700
@@ -24,6 +24,14 @@
 #endif
 @PRAGMA_COLUMNS@
 
+/* On Cygwin, <sys/time.h> includes itself recursively via <sys/select.h>.
+   Simply delegate to the system's header in this case; it is a no-op.
+   Without this extra ifdef, the C++ gettimeofday declaration below
+   would be a forward declaration in gnulib's nested <sys/time.h>.  */
+#ifdef _CYGWIN_SYS_TIME_H
+# @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
+#else
+
 /* The include_next requires a split double-inclusion guard.  */
 #if @HAVE_SYS_TIME_H@
 # @INCLUDE_NEXT@ @NEXT_SYS_TIME_H@
@@ -200,4 +208,5 @@
 #endif
 
 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */
+#endif /* _CYGWIN_SYS_TIME_H */
 #endif /* _@GUARD_PREFIX@_SYS_TIME_H */