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Diffstat (limited to 'malloc')
-rw-r--r--malloc/malloc.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 37249b0c7a..a9541b9630 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1292,7 +1292,10 @@ static void      free_atfork();
 /* sizes, alignments */
 
 #define SIZE_SZ                (sizeof(INTERNAL_SIZE_T))
-#define MALLOC_ALIGNMENT       (SIZE_SZ + SIZE_SZ)
+/* Allow the default to be overwritten on the compiler command line.  */
+#ifndef MALLOC_ALIGNMENT
+# define MALLOC_ALIGNMENT      (SIZE_SZ + SIZE_SZ)
+#endif
 #define MALLOC_ALIGN_MASK      (MALLOC_ALIGNMENT - 1)
 #define MINSIZE                (sizeof(struct malloc_chunk))