title: Issue finding and linking Psapi library to executable using cmake
body: <p>I am trying to link the psapi library to a project with cmake, nothing complex. Here's my cmake-file:</p>
  
  <pre><code>cmake_minimum_required(VERSION 2.8)
  project(BenchmarkTests)
  
  add_definitions(-DPSAPI_VERSION=1)
  
  if (WIN32)
      FILE(GLOB win32_head
          Timer.h
          win_Memory.h
          win_Processor.h
          BenchmarkTests.h)
      FILE(GLOB win32_source *.cpp)
  
      SET(win32_test ${win32_head} ${win32_source})
  
      SET(LIBDIR_NAME "C:/Program Files (x86)/Windows Kits/8.1/Lib/winv6.3/um/x64/")
      SET(LIBDIR $ENV{${LIBDIR_NAME}})
      SET(LIBNAME "Psapi.Lib")
      find_library (Psapi ${LIBNAME} {LIBDIR})
  
      ADD_EXECUTABLE(bmTests ${win32_test})
      TARGET_LINK_LIBRARIES(bmTests Psapi)
  
      SOURCE_GROUP("win32" FILES ${win32_test})
  endif() 
  </code></pre>
  
  <p>There are no other "Psapi.Lib" files on my computer except for in ".../um/x86", but my system is 64-bit so I want the x64, no? Anyhow the output in CMake GUI for Psapi field is "Psapi-NOTFOUND" and in VS2013 all of the functions in Psapi.h recieve syntax errors. I guess since they can't link to the library. Am I forgetting something vital in my cmake file? Any suggested fix or alternative method is welcome, thanks in advance.</p>
  
  <p>I get the same result when I try the below instead of find_library(...)</p>
  
  <pre><code>add_library(Psapi STATIC IMPORTED)
  set_property(TARGET Psapi PROPERTY IMPORTED_LOCATION "C:/Program Files (x86)/Windows Kits/8.1/Lib/winv6.3/um/x64/Psapi.Lib")
  </code></pre>