diff --git a/configure.ac b/configure.ac
index c85c0c38cc5..7152f2aa960 100644
--- a/configure.ac
+++ b/configure.ac
@@ -79,6 +79,8 @@ LIBS=$OLD_LIBS
 
 AC_CHECK_LIB(json-c, json_object_new_object, AC_DEFINE_UNQUOTED(HAVE_JSON_C, 1, [The JSON-C library is present]))
 
+AC_CHECK_LIB(pthread, pthread_setaffinity_np, AC_DEFINE_UNQUOTED(HAVE_PTHREAD_SETAFFINITY_NP, 1, [libc has pthread_setaffinity_np]))
+
 AC_CONFIG_FILES([Makefile src/lib/Makefile example/Makefile libndpi.pc])
 AC_CONFIG_HEADERS(config.h)
 AC_SUBST(GIT_RELEASE)
@@ -86,5 +88,6 @@ AC_SUBST(SVN_DATE)
 AC_SUBST(JSON_C_LIB)
 AC_SUBST(PCAP_INC)
 AC_SUBST(PCAP_LIB)
+AC_SUBST(HAVE_PTHREAD_SETAFFINITY_NP)
 
 AC_OUTPUT
diff --git a/example/ndpiReader.c b/example/ndpiReader.c
index 558d204ed26..d7293f6260b 100644
--- a/example/ndpiReader.c
+++ b/example/ndpiReader.c
@@ -1662,7 +1662,7 @@ static void runPcapLoop(u_int16_t thread_id) {
 void *processing_thread(void *_thread_id) {
   long thread_id = (long) _thread_id;
 
-#ifdef linux
+#if defined(linux) && defined(HAVE_PTHREAD_SETAFFINITY_NP)
   if(core_affinity[thread_id] >= 0) {
     cpu_set_t cpuset;
     CPU_ZERO(&cpuset);