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authorPaul Eggert <eggert@cs.ucla.edu>2013-03-23 17:49:50 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2013-03-23 17:49:50 -0700
commitf8ce376ec852149b64afa282860ec778a4fec328 (patch)
treef416a25935d27db63863c92ffe08b1ecb40ee8e1 /lib/sys_time.in.h
parent789b5e9a7fa4c94364ddd6da7b22ecb9d1620477 (diff)
downloademacs-f8ce376ec852149b64afa282860ec778a4fec328.tar.gz
Merge from gnulib.
Diffstat (limited to 'lib/sys_time.in.h')
-rw-r--r--lib/sys_time.in.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/sys_time.in.h b/lib/sys_time.in.h
index 656c3f13ad2..3dbf6320667 100644
--- a/lib/sys_time.in.h
+++ b/lib/sys_time.in.h
@@ -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 @@ _GL_WARN_ON_USE (gettimeofday, "gettimeofday is unportable - "
#endif
#endif /* _@GUARD_PREFIX@_SYS_TIME_H */
+#endif /* _CYGWIN_SYS_TIME_H */
#endif /* _@GUARD_PREFIX@_SYS_TIME_H */