--- poppler-21.08.0.old/test/CMakeLists.txt
+++ poppler-21.08.0/test/CMakeLists.txt
@@ -1,16 +1,3 @@
-
-if (HAVE_NANOSLEEP OR LIB_RT_HAS_NANOSLEEP)
-  set (perf_test_SRCS
-    perf-test.cc
-    perf-test-preview-dummy.cc
-  )
-  add_executable(perf-test ${perf_test_SRCS})
-  target_link_libraries(perf-test poppler)
-  if (LIB_RT_HAS_NANOSLEEP)
-    target_link_libraries(perf-test rt)
-  endif ()
-endif ()
-
 if (GTK_FOUND)
 
   include_directories(