CMake: Use pthread library when requested and available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71116 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/cmake/modules/AddLLVM.cmake b/cmake/modules/AddLLVM.cmake
index 13ecc37f7feb9d8a52086603546bf7088d8b2954..62d9f3195bb35f6cbe7f6d4124ae660b0e6cc612 100755 (executable)
--- a/cmake/modules/AddLLVM.cmake
+++ b/cmake/modules/AddLLVM.cmake
@@ -34,6 +34,9 @@ macro(add_llvm_executable name)
       target_link_libraries(${name} imagehlp psapi)
     elseif( CMAKE_HOST_UNIX )
       target_link_libraries(${name} dl)
+      if( LLVM_ENABLE_THREADS AND HAVE_LIBPTHREAD )
+       target_link_libraries(${name} pthread)
+      endif()
     endif( MINGW )
   endif( MSVC )
 endmacro(add_llvm_executable name)