diff --git a/llvm/cmake/config-ix.cmake b/llvm/cmake/config-ix.cmake
index 2952eb774782..ff71ad320218 100644
--- a/llvm/cmake/config-ix.cmake
+++ b/llvm/cmake/config-ix.cmake
@@ -87,7 +87,17 @@ if( NOT PURE_WINDOWS )
   endif()
   check_library_exists(dl dlopen "" HAVE_LIBDL)
   check_library_exists(rt clock_gettime "" HAVE_LIBRT)
-  check_library_exists(pfm pfm_initialize "" HAVE_LIBPFM)
+endif()
+
+# Check for libpfm.
+check_library_exists(pfm pfm_initialize "" HAVE_LIBPFM_INITIALIZE)
+if(HAVE_LIBPFM_INITIALIZE)
+  check_include_file(perfmon/perf_event.h HAVE_PERFMON_PERF_EVENT_H)
+  check_include_file(perfmon/pfmlib.h HAVE_PERFMON_PFMLIB_H)
+  check_include_file(perfmon/pfmlib_perf_event.h HAVE_PERFMON_PFMLIB_PERF_EVENT_H)
+  if(HAVE_PERFMON_PERF_EVENT_H AND HAVE_PERFMON_PFMLIB_H AND HAVE_PERFMON_PFMLIB_PERF_EVENT_H)
+    set(HAVE_LIBPFM 1)
+  endif()
 endif()
 
 if(HAVE_LIBPTHREAD)