From a600a28095d78f3ce5586f0de95cdc0bf9ca3472 Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Thu, 28 Feb 2019 10:17:07 -0800
Subject: [PATCH] configure: Check for <memory_resource> availability.

---
 configure.ac | 1 +
 ircd/json.cc | 1 +
 2 files changed, 2 insertions(+)

diff --git a/configure.ac b/configure.ac
index 6d4264e68..038985302 100644
--- a/configure.ac
+++ b/configure.ac
@@ -661,6 +661,7 @@ RB_CHK_SYSHEADER(string_view, [STRING_VIEW])
 RB_CHK_SYSHEADER(optional, [OPTIONAL])
 RB_CHK_SYSHEADER(new, [NEW])
 RB_CHK_SYSHEADER(regex, [REGEX])
+RB_CHK_SYSHEADER(memory_resource, [MEMORY_RESOURCE])
 
 dnl unix platform
 RB_CHK_SYSHEADER(unistd.h, [UNISTD_H])
diff --git a/ircd/json.cc b/ircd/json.cc
index 8f1c56567..018686450 100644
--- a/ircd/json.cc
+++ b/ircd/json.cc
@@ -488,6 +488,7 @@ ircd::json::merge(stack::object &out,
 {
 	struct val
 	{
+		//TODO: optimize with std::pmr::monotonic_buffer_resource et al
 		std::map<string_view, val, std::less<>> o;
 		std::vector<string_view> a;
 		string_view v;