Add pthread to cmakelists

.ci/boost.sh

@@ -6,7 +6,7 @@ sudo wget -O boost_1_66_0.tar.gz http://sourceforge.net/projects/boost/files/boo
 sudo tar xzf boost_1_66_0.tar.gz
 
 cd boost_1_66_0/
-sudo ./bootstrap.sh --with-libraries=random,thread,system,chrono,date_time,atomic --prefix=/usr/local
+sudo ./bootstrap.sh --with-libraries=random,thread,system --prefix=/usr/local
 sudo ./b2 -d0 variant=debug link=shared
 sudo ./b2 -d0 install 
 

CMakeLists.txt

@@ -36,6 +36,10 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
     endif()
 endif()
 
+if(NOT APPLE AND NOT MSVC)
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
+endif()
+
 set(Boost_USE_STATIC_LIBS OFF)
 set(Boost_USE_MULTITHREADED ON)
 find_package(Boost 1.66 REQUIRED)