Placed the if in the wrong place.

modules/highgui/CMakeLists.txt

@@ -380,8 +380,6 @@ if(BUILD_TESTS)
 
   add_executable(${the_target} ${test_srcs} ${test_hdrs})
 
-endif(BUILD_TESTS)
-
   if(PCHSupport_FOUND AND USE_PRECOMPILED_HEADERS)
       set(pch_header ${CMAKE_CURRENT_SOURCE_DIR}/test/test_precomp.hpp)
       if(${CMAKE_GENERATOR} MATCHES "Visual*" OR ${CMAKE_GENERATOR} MATCHES "Xcode*")
@@ -416,3 +414,4 @@ add_test(${the_target} "${LOC}")
   if(WIN32)
       install(TARGETS ${the_target} RUNTIME DESTINATION bin COMPONENT main)
   endif()
+endif(BUILD_TESTS)