Fix MingW build

[alexxy/gromacs.git] / cmake / ThreadMPI.cmake

diff --git a/cmake/ThreadMPI.cmake b/cmake/ThreadMPI.cmake
index d039dba5afd39972591a42db46a18341fcc4fa8f..76e4d37b052a50379452a570b257208026c8e2de 100644 (file)
--- a/cmake/ThreadMPI.cmake
+++ b/cmake/ThreadMPI.cmake
@@ -62,15 +62,16 @@ MACRO(TMPI_TEST_ATOMICS INCDIR)
 
 ENDMACRO(TMPI_TEST_ATOMICS VARIABLE)
 
+try_compile(HAVE_PROCESSOR_NUMBER ${CMAKE_BINARY_DIR} "${CMAKE_SOURCE_DIR}/cmake/TestWinProcNum.c")
 
 include(FindThreads)
-if (CMAKE_USE_PTHREADS_INIT)
+if (CMAKE_USE_WIN32_THREADS_INIT AND HAVE_PROCESSOR_NUMBER)
+    set(THREAD_WINDOWS 1)
+    set(THREAD_LIB)
+elseif (CMAKE_USE_PTHREADS_INIT)
     check_include_files(pthread.h    HAVE_PTHREAD_H)
     set(THREAD_PTHREADS 1)
     set(THREAD_LIB ${CMAKE_THREAD_LIBS_INIT})
-elseif (CMAKE_USE_WIN32_THREADS_INIT)
-    set(THREAD_WINDOWS 1)
-    set(THREAD_LIB)
 else()
     message(FATAL_ERROR "Thread support required")
 endif ()