From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Linus Groh <mail@linusgroh.de>
Date: Sun, 27 Oct 2024 02:13:48 +0000
Subject: [PATCH] Replace lockf(fd, F_LOCK, 0) with flock(fd, LOCK_EX)

We don't have the former implemented.
---
 lib/jobs-unix.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/jobs-unix.cc b/lib/jobs-unix.cc
index 9912ab52c451bb7eacd8a40f5d9cadbbbb49260e..03de0b59ea8d8b95930b10df9550e28fe3b37d0c 100644
--- a/lib/jobs-unix.cc
+++ b/lib/jobs-unix.cc
@@ -14,9 +14,9 @@
 #include <fcntl.h>
 #include <pwd.h>
 #include <stdlib.h>
+#include <sys/file.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <unistd.h>
 
 namespace mold {
 
@@ -37,7 +37,7 @@ void acquire_global_lock() {
   if (fd == -1)
     return;
 
-  if (lockf(fd, F_LOCK, 0) == -1)
+  if (flock(fd, LOCK_EX) == -1)
     return;
   lock_fd = fd;
 }