From e0b1c6a8c14adbb130a239582b0fd8eb840d6a16 Mon Sep 17 00:00:00 2001
From: Jean-Francois Smigielski <jf.smigielski@gmail.com>
Date: Thu, 28 Dec 2017 14:19:54 +0100
Subject: [PATCH 1/2] Fix a missing dependency to the pthread library

---
 CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 360f4e86..0e512c5a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -129,6 +129,7 @@ endif()
 # tests
 include(CTest)
 if(BUILD_TESTING)
+    include(FindThreads)
     file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/tests)
     set(test_files
         tests/chan.c
@@ -155,7 +156,7 @@ if(BUILD_TESTING)
       set_target_properties(test_${test_name} PROPERTIES
         RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/tests
         OUTPUT_NAME ${test_name})
-      target_link_libraries(test_${test_name} dill)
+      target_link_libraries(test_${test_name} dill ${CMAKE_THREAD_LIBS_INIT})
       add_test(test_${test_name} tests/${test_name})
     endforeach()
 endif()

From 1bc4eacfbb861d0d831d49062103a57356196edb Mon Sep 17 00:00:00 2001
From: Jean-Francois Smigielski <jf.smigielski@gmail.com>
Date: Thu, 28 Dec 2017 14:29:27 +0100
Subject: [PATCH 2/2] Detect the threading library with CMake

---
 CMakeLists.txt | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e512c5a..6a89254a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -129,8 +129,8 @@ endif()
 # tests
 include(CTest)
 if(BUILD_TESTING)
-    include(FindThreads)
     file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/tests)
+    # no requirement on pthread
     set(test_files
         tests/chan.c
         tests/choose.c
@@ -147,18 +147,32 @@ if(BUILD_TESTING)
         tests/rbtree.c
         tests/signals.c
         tests/sleep.c
-        tests/tcp.c
-        tests/threads.c
-        tests/threads2.c)
+        tests/tcp.c)
     foreach(test_file IN LISTS test_files)
       get_filename_component(test_name ${test_file} NAME_WE)
       add_executable(test_${test_name} ${test_file})
       set_target_properties(test_${test_name} PROPERTIES
         RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/tests
         OUTPUT_NAME ${test_name})
-      target_link_libraries(test_${test_name} dill ${CMAKE_THREAD_LIBS_INIT})
+      target_link_libraries(test_${test_name} dill)
       add_test(test_${test_name} tests/${test_name})
     endforeach()
+    # requiring pthread
+    include(FindThreads)
+    if (CMAKE_USE_PTHREADS_INIT)
+        set(test_files
+            tests/threads.c
+            tests/threads2.c)
+        foreach(test_file IN LISTS test_files)
+          get_filename_component(test_name ${test_file} NAME_WE)
+          add_executable(test_${test_name} ${test_file})
+          set_target_properties(test_${test_name} PROPERTIES
+            RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/tests
+            OUTPUT_NAME ${test_name})
+          target_link_libraries(test_${test_name} dill ${CMAKE_THREAD_LIBS_INIT})
+          add_test(test_${test_name} tests/${test_name})
+        endforeach()
+    endif()
 endif()
 
 # perf