array: mark the array to grow as volatile
This works around strict aliasing rules letting some versions of
GCC (particularly on RHEL 6) thinking that they can skip updating the
size of the array when calculating the next element's offset.
diff --git a/src/array.h b/src/array.h
index f8a4872..af9eafa 100644
--- a/src/array.h
+++ b/src/array.h
@@ -44,7 +44,7 @@
/* use a generic array for growth so this can return the new item */
GIT_INLINE(void *) git_array_grow(void *_a, size_t item_size)
{
- git_array_generic_t *a = _a;
+ volatile git_array_generic_t *a = _a;
uint32_t new_size = (a->size < 8) ? 8 : a->asize * 3 / 2;
char *new_array = git__realloc(a->ptr, new_size * item_size);
if (!new_array) {
