Make the absence of perf-cppflags give a good default build.

Defaults are now:
- thread-safe with GCC/Clang
- Debugging not enabled (enable with -UNDEBUG)

1 files changed, 1 insertions, 0 deletions

diff --git a/upb/table.c b/upb/table.c
index e0cac64..3fd4b0f 100644
--- a/upb/table.c
+++ b/upb/table.c
@@ -112,6 +112,7 @@ static bool lookup(const upb_table *t, upb_tabkey key, upb_value *v,
 // The given key must not already exist in the table.
 static void insert(upb_table *t, upb_tabkey key, upb_value val,
                    hashfunc_t *hash, eqlfunc_t *eql) {
+  UPB_UNUSED(eql);
   assert(findentry(t, key, hash, eql) == NULL);
   assert(val.ctype == t->ctype);
   t->count++;