From 22fac72e1a45261c0089904718bd89a72cba3b68 Mon Sep 17 00:00:00 2001
From: freddyrios <70888589+freddyrios@users.noreply.github.com>
Date: Wed, 24 Feb 2021 04:20:12 +0100
Subject: [PATCH] fixes WiringPi/WiringPi#100 (#101)

Replaces a bare wait() with waitpid() to only wait on the just-forked process.
---
 wiringPi/wiringPi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index 85aedf6..b311165 100644
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -2049,7 +2049,7 @@ int wiringPiISR (int pin, int mode, void (*function)(void))
 	return wiringPiFailure (WPI_FATAL, "wiringPiISR: Can't find gpio program\n") ;
     }
     else		// Parent, wait
-      wait (NULL) ;
+      waitpid (pid, NULL, 0) ;
   }
 
 // Now pre-open the /sys/class node - but it may already be open if