Arena allocator for grpc
diff --git a/config.m4 b/config.m4
index 90536e5..f43a031 100644
--- a/config.m4
+++ b/config.m4
@@ -39,6 +39,7 @@
     src/core/lib/profiling/basic_timers.c \
     src/core/lib/profiling/stap_timers.c \
     src/core/lib/support/alloc.c \
+    src/core/lib/support/arena.c \
     src/core/lib/support/avl.c \
     src/core/lib/support/backoff.c \
     src/core/lib/support/cmdline.c \