From: Shreenidhi Shedi <sshedi@vmware.com>
Date: Mon, 9 Aug 2021 04:55:35 +0000 (+0530)
Subject: fix(install): improve gettid definition
X-Git-Tag: 056~115
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ef0f848a67fdd0a0dab135acbd1cd7fa0179a95c;p=thirdparty%2Fdracut.git

fix(install): improve gettid definition

Signed-off-by: Shreenidhi Shedi <sshedi@vmware.com>
---

diff --git a/src/install/util.c b/src/install/util.c
index bd17fe7f5..5721de89e 100644
--- a/src/install/util.c
+++ b/src/install/util.c
@@ -24,14 +24,17 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <sys/types.h>
-#include <sys/syscall.h>
 
 #include "util.h"
 
-static inline pid_t gettid(void)
-{
-        return (pid_t) syscall(SYS_gettid);
-}
+#if __GLIBC_PREREQ(2, 30) == 0
+#include <sys/syscall.h>
+#ifndef SYS_gettid
+#error "SYS_gettid unavailable on this system"
+#endif
+
+#define gettid()    ((pid_t) syscall(SYS_gettid))
+#endif /*__GLIBC_PREREQ */
 
 size_t page_size(void)
 {