From 9c9ba2f1a17792938f1a83eabebc441908888a5e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E9=80=9A=E6=B4=B2?= <zhangsongcui3371@sina.com>
Date: Mon, 10 Jul 2023 18:10:59 +0800
Subject: [PATCH] CI (Linux): fix build on musl

---
 src/common/processing_linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/processing_linux.c b/src/common/processing_linux.c
index 1cd1ce3bd..105f725bd 100644
--- a/src/common/processing_linux.c
+++ b/src/common/processing_linux.c
@@ -21,7 +21,7 @@ int waitpid_timeout(pid_t pid, int* status)
     if (FF_WAIT_TIMEOUT <= 0)
         return waitpid(pid, status, 0);
 
-    #ifdef __linux__
+    #if defined(__linux__) && defined(SYS_pidfd_open) // musl don't define SYS_pidfd_open
 
     FF_AUTO_CLOSE_FD int pidfd = (int) syscall(SYS_pidfd_open, pid, 0);
     if (pidfd >= 0)