From 8c3bd25825dc3b87976e9dc0f9d3f5004680c7ea Mon Sep 17 00:00:00 2001
From: Jeff <ampernand@gmail.com>
Date: Thu, 1 Feb 2018 17:10:47 -0500
Subject: [PATCH] fix on os x

---
 Makefile         | 2 +-
 llarp/buffer.cpp | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index bc0150fb3..b2a5bb5a2 100644
--- a/Makefile
+++ b/Makefile
@@ -42,7 +42,7 @@ ifneq ($(GIT_VERSION),"")
 endif
 
 REQUIRED_CFLAGS = $(LIBUV_FLAGS) $(SODIUM_FLAGS) -I$(REPO)/include -std=c99 $(CFLAGS) $(DEBUG_FLAGS) $(VER_FLAGS) -Wall -fPIC
-REQUIRED_CXXFLAGS = $(LIBUV_FLAGS) $(SODIUM_FLAGS) -I$(REPO)/include -std=c++17 $(CXXFLAGS) $(DEBUG_FLAGS) $(VER_FLAGS) -Wall -fPIC
+REQUIRED_CXXFLAGS = $(LIBUV_FLAGS) $(SODIUM_FLAGS) -I$(REPO)/include -std=c++14 $(CXXFLAGS) $(DEBUG_FLAGS) $(VER_FLAGS) -Wall -fPIC
 LIB_LDFLAGS = -ljemalloc $(SODIUM_LIBS) $(LIBUV_LIBS) -lm -lstdc++
 REQUIRED_LDFLAGS = -L$(REPO) -lllarp 
 TEST_LDFLAGS = $(STATIC_LIB) $(LIB_LDFLAGS)
diff --git a/llarp/buffer.cpp b/llarp/buffer.cpp
index 03611a679..438002377 100644
--- a/llarp/buffer.cpp
+++ b/llarp/buffer.cpp
@@ -4,7 +4,7 @@
 extern "C" {
 
 size_t llarp_buffer_size_left(llarp_buffer_t *buff) {
-  std::ptrdiff_t diff = buff->cur - buff->base;
+  auto diff = buff->cur - buff->base;
   if (diff < 0) {
     return 0;
   } else if (diff > buff->sz)