title: openmp Linker flags in MSVC
body: <p>when I try to compile my project in MSVC2008 with the linker flag (Configuration properties>>Linker>>Command line>> Additional options) set to :
  "/STACK:10000000 /machine:x64 /openmp" 
  it warns me that the /openmp flag is unknown.
  "LINK : warning LNK4044: unrecognized option '/openmp'; ignored"
  I want to know that MSVC automatically links the openmp libs when I added the compiler flag (Configuration properties>>C/C++>>Command line>>Additional options) 
  " /Zm1000 /EHs /MP /openmp /fp:fast" 
  or I should do sth else for getting rid of the warning.</p>