From 77439eb9e8dd2d936a51817daba1768df8d81a78 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Jacke?= <bj@sernet.de>
Date: Tue, 14 Jan 2020 10:27:45 +0100
Subject: [PATCH] waf: check for copy_file_range function and syscall

Signed-off-by: Bjoern Jacke <bjacke@samba.org>
---
 source3/wscript | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/source3/wscript b/source3/wscript
index 62aa3495996d..27662e56a4a1 100644
--- a/source3/wscript
+++ b/source3/wscript
@@ -1310,6 +1310,16 @@ ssize_t err = posix_fadvise(0,0,0x80000,POSIX_FADV_WILLNEED);
                         'SYSCONF%s' % v,
                         msg='Checking whether sysconf(%s) is available' % v)
 
+    if not conf.CHECK_FUNCS('copy_file_range', headers="unistd.h"):
+        conf.CHECK_CODE('''
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+syscall(SYS_copy_file_range,0,NULL,0,NULL,0,0);
+                        ''',
+                        'HAVE_SYSCALL_COPY_FILE_RANGE',
+                        msg='Checking whether we have copy_file_range system call')
+
     conf.CHECK_CODE('''
 #include <sys/syscall.h>
 #include <unistd.h>
-- 
2.17.1