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-rw-r--r--linux-user/mmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 6ce41677af..07ce051576 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -34,7 +34,7 @@
//#define DEBUG_MMAP
#if defined(CONFIG_USE_NPTL)
-pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t mmap_mutex = PTHREAD_MUTEX_INITIALIZER;
static int __thread mmap_lock_count;
void mmap_lock(void)