From dea21ec4ce182bc5061bbc82e2f3ac59b4423412 Mon Sep 17 00:00:00 2001
From: Jonathan Yong <10walls@gmail.com>
Date: Tue, 8 Sep 2020 15:21:56 +0200
Subject: [PATCH 09/11] Cygwin: g++ time

---
 libstdc++-v3/acinclude.m4 | 3 +++
 libstdc++-v3/configure    | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 1c0a4c13052..2f348df1986 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -1418,7 +1418,10 @@ AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME], [
 
     case "${target_os}" in
       cygwin*)
+        ac_has_clock_monotonic=yes
+        ac_has_clock_realtime=yes
         ac_has_nanosleep=yes
+        ac_has_sched_yield=yes
         ;;
       darwin*)
         ac_has_nanosleep=yes
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 326a279c54f..7a461b53c88 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -20519,7 +20519,10 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 
     case "${target_os}" in
       cygwin*)
+        ac_has_clock_monotonic=yes
+        ac_has_clock_realtime=yes
         ac_has_nanosleep=yes
+        ac_has_sched_yield=yes
         ;;
       darwin*)
         ac_has_nanosleep=yes
-- 
2.31.1