From c0ffc138015c12fba7b9406a57de83474490acfd Mon Sep 17 00:00:00 2001
From: SiZiOUS <sizious@gmail.com>
Date: Sat, 23 Dec 2023 19:16:23 +0000
Subject: [PATCH] `mruby-time`: protect against incorrectly defined
 `_POSIX_TIMERS` This update avoids the following error: operator '&&' has no
 right operand (related to _POSIX_TIMERS) See:
 https://stackoverflow.com/questions/48538243/macro-if-statement-returns-error-operator-has-no-right-operand

---
 mrbgems/mruby-time/src/time.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mrbgems/mruby-time/src/time.c b/mrbgems/mruby-time/src/time.c
index 001d46b7c..518fb3d61 100644
--- a/mrbgems/mruby-time/src/time.c
+++ b/mrbgems/mruby-time/src/time.c
@@ -83,6 +83,12 @@ double round(double x) {
 
 /** end of Time class configuration */
 
+/* protection against incorrectly defined _POSIX_TIMERS */
+#if (_POSIX_TIMERS + 0) == 0
+#undef _POSIX_TIMERS
+#define _POSIX_TIMERS 0
+#endif
+
 #if (defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0) && defined(CLOCK_REALTIME)
 # define USE_CLOCK_GETTIME
 #endif