Add alpha blending support to surfaces
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 5fbaa11..8ea9925 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -33,6 +33,9 @@
 endif()
 add_executable(fbperf ${FBPERF_SOURCES})
 target_link_libraries(fbperf test_util rfb ${FLTK_LIBRARIES} ${GETTEXT_LIBRARIES})
+if(WIN32)
+  target_link_libraries(fbperf msimg32)
+endif()
 if(APPLE)
   target_link_libraries(fbperf "-framework Cocoa" "-framework Carbon")
 endif()