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Diffstat (limited to 'libc/stdlib/malloc/heap.h')
-rw-r--r--libc/stdlib/malloc/heap.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/libc/stdlib/malloc/heap.h b/libc/stdlib/malloc/heap.h
index 3dab65396..0210d9098 100644
--- a/libc/stdlib/malloc/heap.h
+++ b/libc/stdlib/malloc/heap.h
@@ -136,8 +136,8 @@ extern void __heap_check (struct heap *heap, const char *str);
#ifdef HEAP_USE_LOCKING
-# define __heap_lock(heap) pthread_mutex_lock (&(heap)->lock)
-# define __heap_unlock(heap) pthread_mutex_unlock (&(heap)->lock)
+# define __heap_lock(heap) __pthread_mutex_lock (&(heap)->lock)
+# define __heap_unlock(heap) __pthread_mutex_unlock (&(heap)->lock)
#else /* !__UCLIBC_HAS_THREADS__ */
/* Without threads, mutex operations are a nop. */
# define __heap_lock(heap) (void)0