BUILD: memprof: make the old caller pointer a const in get_prof_bin()
It's a const void* in the target, we can't use a void* in the caller,
this causes a build warning with clang.
diff --git a/src/activity.c b/src/activity.c
index 2080fd6..179ff1f 100644
--- a/src/activity.c
+++ b/src/activity.c
@@ -187,7 +187,7 @@
static struct memprof_stats *memprof_get_bin(const void *ra)
{
int retries = 16; // up to 16 consecutive entries may be tested.
- void *old;
+ const void *old;
unsigned int bin;
bin = memprof_hash_ptr(ra);