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-rw-r--r--src/malloc/expand_heap.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/malloc/expand_heap.c b/src/malloc/expand_heap.c
index d8c0be74..e6a3d7a0 100644
--- a/src/malloc/expand_heap.c
+++ b/src/malloc/expand_heap.c
@@ -4,6 +4,7 @@
 #include <sys/mman.h>
 #include "libc.h"
 #include "syscall.h"
+#include "malloc_impl.h"
 
 /* This function returns true if the interval [old,new]
  * intersects the 'len'-sized interval below &libc.auxv
@@ -27,8 +28,6 @@ static int traverses_stack_p(uintptr_t old, uintptr_t new)
 	return 0;
 }
 
-void *__mmap(void *, size_t, int, int, int, off_t);
-
 /* Expand the heap in-place if brk can be used, or otherwise via mmap,
  * using an exponential lower bound on growth by mmap to make
  * fragmentation asymptotically irrelevant. The size argument is both