From d17bb114c672e605f57113317fd83e9fd7aac3d8 Mon Sep 17 00:00:00 2001
From: Wolfgang Hommel <wolfgang.hommel@unibw.de>
Date: Sun, 4 Jun 2023 13:21:09 +0200
Subject: [PATCH] Honor fake_monotoic_clock setting in clock_nanosleep,
 addresses #426

---
 src/libfaketime.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libfaketime.c b/src/libfaketime.c
index b83bae4..fc4306d 100644
--- a/src/libfaketime.c
+++ b/src/libfaketime.c
@@ -1358,7 +1358,9 @@ int clock_nanosleep(clockid_t clock_id, int flags, const struct timespec *req, s
       }
       else if (clock_id == CLOCK_MONOTONIC)
       {
-        timespecadd(&ftpl_starttime.mon, &tdiff, &real_req);
+        if (fake_monotonic_clock) {
+          timespecadd(&ftpl_starttime.mon, &tdiff, &real_req);
+        }
       }
       else /* presumably only CLOCK_PROCESS_CPUTIME_ID, leave untouched */
       {