Index: cmake/os.cmake
--- cmake/os.cmake.orig
+++ cmake/os.cmake
@@ -6,9 +6,9 @@
 
 find_library(PTHREAD_LIB pthread)
 find_library(RT_LIB rt)
-set(GALERA_SYSTEM_LIBS ${PTHREAD_LIB} ${RT_LIB})
 
 if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+  set(GALERA_SYSTEM_LIBS ${PTHREAD_LIB} ${RT_LIB})
   # Check if linkage with atomic library is needed for 8 byte atomics
   set(ATOMIC_8_TEST_C_SOURCE
      "int main() { long long val; __atomic_fetch_add_8(&val, 1, __ATOMIC_SEQ_CST); return 0;}")