Merge pull request #59 from spickartz/sp/fix-gcc-7.1

add missing includes

Author: Simon Pickartz

.travis.yml

@@ -34,6 +34,16 @@ matrix:
       env:
           - COMPILERCXX=g++-6
           - COMPILERC=gcc-6
+    - compiler: gcc
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-7
+      env:
+          - COMPILERCXX=g++-7
+          - COMPILERC=gcc-7
     - compiler: clang
       env:
           - COMPILERC=clang

include/fast-lib/mqtt_communicator.hpp

@@ -15,6 +15,7 @@
 
 #include <chrono>
 #include <condition_variable>
+#include <functional>
 #include <memory>
 #include <mutex>
 #include <string>

vendor/spdlog/include/spdlog/spdlog.h

@@ -8,6 +8,8 @@
 
 #pragma once
 
+#include <functional>
+
 #include "tweakme.h"
 #include "common.h"
 #include "logger.h"