diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index c2064dd..31c5a94 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -100,11 +100,9 @@
 endif (WIN32)
 
 find_library(RT_LIBRARY rt)
-if (RT_LIBRARY)
-    set(CMAKE_REQUIRED_LIBRARIES ${RT_LIBRARY})
-endif (RT_LIBRARY)
-
-set(CMOCKA_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "cmocka required system libraries")
+if (RT_LIBRARY AND NOT LINUX)
+    set(CMOCKA_REQUIRED_LIBRARIES ${RT_LIBRARY} CACHE INTERNAL "cmocka required system libraries")
+endif ()
 
 # OPTIONS
 check_c_source_compiles("
@@ -124,9 +122,10 @@
 endif(WIN32)
 
 if (HAVE_TIME_H AND HAVE_STRUCT_TIMESPEC AND HAVE_CLOCK_GETTIME)
-    set(CMAKE_REQUIRED_LIBRARIES ${RT_LIBRARY})
+    if (RT_LIBRARY)
+        set(CMAKE_REQUIRED_LIBRARIES ${RT_LIBRARY})
+    endif()
 
-    message(STATUS "CMAKE_REQUIRED_INCLUDES=${CMAKE_REQUIRED_INCLUDES} CMAKE_REQUIRED_LIBRARIES=${CMAKE_REQUIRED_LIBRARIES}")
     check_c_source_compiles("
 #include <time.h>
 
@@ -137,7 +136,10 @@
 
     return 0;
 }" HAVE_CLOCK_GETTIME_REALTIME)
+
+    # reset cmake requirements
     set(CMAKE_REQUIRED_INCLUDES)
+    set(CMAKE_REQUIRED_LIBRARIES)
 endif ()
 
 # ENDIAN