Use FindThreads to check for pthreading

[simgrid.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6e72709..cde287e 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -60,6 +60,9 @@ if(APPLE AND (CMAKE_C_COMPILER_VERSION VERSION_LESS "4.6"))
   set(HAVE_UCONTEXT_H 0)
 endif()
 
+### Check threading support
+set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
+find_package(Threads)
 
 ### Setup Options
 include(${CMAKE_HOME_DIRECTORY}/tools/cmake/Option.cmake)
@@ -252,40 +255,28 @@ else()
   endif()
 endif()
 
-#Boost context 1.61 will break compatibility with our implementation.
-#Warn users about that
-find_package(Boost 1.61 COMPONENTS context)
-
-if(Boost_FOUND AND Boost_CONTEXT_FOUND)
-  message("   WARNING : our implementation of Boost context factory is not compatible with Boost >=1.61 yet.")
-
-  set(Boost_FOUND 1)
-  set(HAVE_BOOST_CONTEXTS 0)
-else()
-# Try again to see if we have libboost-context
-  find_package(Boost 1.42 COMPONENTS context)
-  set(Boost_FOUND 1) # We don't care of whether this component is missing
-
-  if(Boost_FOUND AND Boost_CONTEXT_FOUND)
-    # We should use feature detection for this instead:
-    if (Boost_VERSION LESS 105600)
-      message("Found Boost.Context API v1")
-      set(HAVE_BOOST_CONTEXTS 1)
-    else()
-      message("Found Boost.Context API v2")
-      set(HAVE_BOOST_CONTEXTS 2)
-    endif()
+find_package(Boost COMPONENTS context)
+set(Boost_FOUND 1) # This component is optional
+if(Boost_CONTEXT_FOUND)
+  if (Boost_VERSION LESS 105600)
+    message("Found Boost.Context API v1")
+    set(HAVE_BOOST_CONTEXTS 1)
+  elseif(Boost_VERSION LESS 106100)
+    message("Found Boost.Context API v2")
+    set(HAVE_BOOST_CONTEXTS 2)
   else()
-    message ("   boost        : found.")
-    message ("   boost-context: missing. Install libboost-context-dev for this optional feature.")
+    message("   WARNING : our implementation of Boost context factory is not compatible with Boost >=1.61 yet.")
     set(HAVE_BOOST_CONTEXTS 0)
   endif()
+else()
+  message ("   boost        : found.")
+  message ("   boost-context: missing. Install libboost-context-dev for this optional feature.")
+  set(HAVE_BOOST_CONTEXTS 0)
 endif()
 
 # Checks for header libraries functions.
 CHECK_LIBRARY_EXISTS(rt      clock_gettime           "" HAVE_POSIX_GETTIME)
 
-CHECK_LIBRARY_EXISTS(pthread pthread_create          "" HAVE_PTHREAD)
 if(NOT APPLE) # OS X El Capitan deprecates this function
   CHECK_LIBRARY_EXISTS(pthread sem_init                "" HAVE_SEM_INIT_LIB)
 endif()
@@ -399,7 +390,7 @@ if(HAVE_LIBUNWIND)
   endif()
 else()
   if(enable_model-checking)
-    message(FATAL_ERROR "Please either install the libunwind7-dev package (or equivalent) or turn off the model-checking option of SimGrid.")
+    message(FATAL_ERROR "Please install libunwind-dev libdw-dev libevent-dev if you want to compile the SimGrid model checker.")
   endif()
 endif()
 
@@ -471,7 +462,7 @@ endif()
 ### Initialize of CONTEXT THREADS
 
 set(HAVE_THREAD_CONTEXTS 0)
-if(HAVE_PTHREAD)
+if(CMAKE_USE_PTHREADS_INIT)
   ### Test that we have a way to create semaphores
 
   if(HAVE_SEM_OPEN_LIB)