From faa36614b9b0444faa25534f55fe3d5959ed3302 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Mon, 9 Dec 2019 10:07:24 +0300
Subject: link to pthreads in CMakeLists.txt

---
 .travis/build.sh           | 1 -
 client/CMakeLists.txt      | 5 +++++
 client/Dockerfile          | 1 -
 server/Dockerfile          | 1 -
 server/main/CMakeLists.txt | 5 +++++
 5 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/.travis/build.sh b/.travis/build.sh
index 021ec97..eeeec17 100755
--- a/.travis/build.sh
+++ b/.travis/build.sh
@@ -14,7 +14,6 @@ main() {
     cd -- "$build_dir"
     cmake                                           \
         -D "CMAKE_BUILD_TYPE=$build_type"           \
-        -D "CMAKE_CXX_STANDARD_LIBRARIES=-lpthread" \
         -D "CMAKE_INSTALL_PREFIX=$install_dir"      \
         -D "BOOST_ROOT=$boost_dir"                  \
         -D "BOOST_LIBRARYDIR=$boost_librarydir"     \
diff --git a/client/CMakeLists.txt b/client/CMakeLists.txt
index 6bebf27..c76eba3 100644
--- a/client/CMakeLists.txt
+++ b/client/CMakeLists.txt
@@ -5,4 +5,9 @@ target_include_directories(client SYSTEM PRIVATE ${Boost_INCLUDE_DIRS})
 target_link_libraries(client PRIVATE ${Boost_LIBRARIES})
 target_compile_definitions(client PRIVATE BOOST_DATE_TIME_NO_LIB BOOST_REGEX_NO_LIB)
 
+set(CMAKE_THREAD_PREFER_PTHREAD ON)
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+target_link_libraries(client PRIVATE Threads::Threads)
+
 install(TARGETS client RUNTIME DESTINATION bin)
diff --git a/client/Dockerfile b/client/Dockerfile
index ab1424b..a2408cf 100644
--- a/client/Dockerfile
+++ b/client/Dockerfile
@@ -22,7 +22,6 @@ WORKDIR /tmp/build
 
 RUN cmake -G "Unix Makefiles"                       \
         -D CMAKE_BUILD_TYPE=RelWithDebInfo          \
-        -D CMAKE_CXX_STANDARD_LIBRARIES="-lpthread" \
         -D ENABLE_TESTS=ON                          \
         /tmp/src &&                                 \
     cmake --build test &&                           \
diff --git a/server/Dockerfile b/server/Dockerfile
index 951937e..cf95119 100644
--- a/server/Dockerfile
+++ b/server/Dockerfile
@@ -22,7 +22,6 @@ WORKDIR /tmp/build
 
 RUN cmake -G "Unix Makefiles"                       \
         -D CMAKE_BUILD_TYPE=Release                 \
-        -D CMAKE_CXX_STANDARD_LIBRARIES="-lpthread" \
         -D ENABLE_TESTS=ON                          \
         /tmp/src &&                                 \
     cmake --build test &&                           \
diff --git a/server/main/CMakeLists.txt b/server/main/CMakeLists.txt
index eefb969..d1d06b0 100644
--- a/server/main/CMakeLists.txt
+++ b/server/main/CMakeLists.txt
@@ -9,6 +9,11 @@ target_include_directories(server SYSTEM PRIVATE ${Boost_INCLUDE_DIRS})
 target_link_libraries(server PRIVATE ${Boost_LIBRARIES})
 target_compile_definitions(server PRIVATE BOOST_DATE_TIME_NO_LIB BOOST_REGEX_NO_LIB)
 
+set(CMAKE_THREAD_PREFER_PTHREAD ON)
+set(THREADS_PREFER_PTHREAD_FLAG ON)
+find_package(Threads REQUIRED)
+target_link_libraries(server PRIVATE Threads::Threads)
+
 if(DEBUG_ASIO)
     target_compile_definitions(server PRIVATE BOOST_ASIO_ENABLE_HANDLER_TRACKING)
 endif()
-- 
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