From 470e72ee13f00b617d0fac1122552d3df6e5eada Mon Sep 17 00:00:00 2001
From: haochengxia <xhc_1007@163.com>
Date: Sat, 7 Nov 2026 18:43:57 -0600
Subject: [PATCH 1/2] fix(cachesim): define _GNU_SOURCE before the first system
 header

---
 libCacheSim/bin/cachesim/cache_init.h | 3 ---
 libCacheSim/bin/cachesim/main.c       | 2 +-
 libCacheSim/bin/cachesim/sim.c        | 2 ++
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/libCacheSim/bin/cachesim/cache_init.h b/libCacheSim/bin/cachesim/cache_init.h
index dad4424a9..f38f269b1 100644
--- a/libCacheSim/bin/cachesim/cache_init.h
+++ b/libCacheSim/bin/cachesim/cache_init.h
@@ -1,8 +1,5 @@
 
 #include <strings.h>
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/libCacheSim/bin/cachesim/main.c b/libCacheSim/bin/cachesim/main.c
index 636403df8..b95f0d55a 100644
--- a/libCacheSim/bin/cachesim/main.c
+++ b/libCacheSim/bin/cachesim/main.c
@@ -1,4 +1,4 @@
-
+#define _GNU_SOURCE
 
 #ifdef __linux__
 #include <sys/sysinfo.h>
diff --git a/libCacheSim/bin/cachesim/sim.c b/libCacheSim/bin/cachesim/sim.c
index 3a96cd4e1..a85a25b3e 100644
--- a/libCacheSim/bin/cachesim/sim.c
+++ b/libCacheSim/bin/cachesim/sim.c
@@ -1,3 +1,5 @@
+#define _GNU_SOURCE
+
 #include "cache_init.h"
 #include "libCacheSim/cache.h"
 #include "libCacheSim/reader.h"

From 05c9564f2230b0c7d0066d58e289cded950508fe Mon Sep 17 00:00:00 2001
From: haochengxia <xhc_1007@163.com>
Date: Sat, 7 Nov 2026 18:49:36 -0600
Subject: [PATCH 2/2] format code

---
 libCacheSim/bin/cachesim/cache_init.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libCacheSim/bin/cachesim/cache_init.h b/libCacheSim/bin/cachesim/cache_init.h
index f38f269b1..1f366c1cb 100644
--- a/libCacheSim/bin/cachesim/cache_init.h
+++ b/libCacheSim/bin/cachesim/cache_init.h
@@ -1,8 +1,8 @@
 
-#include <strings.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <strings.h>
 
 #include "libCacheSim/cache.h"
 #include "libCacheSim/evictionAlgo.h"