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-rw-r--r--src/alloc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/alloc.c b/src/alloc.c
index 948b87851a7..bcec8ea4560 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -266,7 +266,7 @@ Lisp_Object Vmemory_full;
remapping on more recent systems because this is less important
nowadays than in the days of small memories and timesharing. */
-EMACS_INT pure[PURESIZE / sizeof (EMACS_INT)] = {1,};
+EMACS_INT pure[(PURESIZE + sizeof (EMACS_INT) - 1) / sizeof (EMACS_INT)] = {1,};
#define PUREBEG (char *) pure
#else /* HAVE_SHM */