diff --git a/lib/asyn-thread.c b/lib/asyn-thread.c
index c3edf72033..177cfc0c7d 100644
--- a/lib/asyn-thread.c
+++ b/lib/asyn-thread.c
@@ -170,7 +170,7 @@ void destroy_thread_sync_data(struct thread_sync_data *tsd)
    * close one end of the socket pair (may be done in resolver thread);
    * the other end (for reading) is always closed in the parent thread.
    */
-#ifndef HAVE_EVENTFD
+#ifndef USE_EVENTFD
   if(tsd->sock_pair[1] != CURL_SOCKET_BAD) {
     wakeup_close(tsd->sock_pair[1]);
   }
@@ -293,7 +293,7 @@ CURL_STDCALL getaddrinfo_thread(void *arg)
   else {
 #ifndef CURL_DISABLE_SOCKETPAIR
     if(tsd->sock_pair[1] != CURL_SOCKET_BAD) {
-#ifdef HAVE_EVENTFD
+#ifdef USE_EVENTFD
       const uint64_t buf[1] = { 1 };
 #else
       const char buf[1] = { 1 };
diff --git a/lib/curl_setup.h b/lib/curl_setup.h
index ff63d3d72f..c5433c02a4 100644
--- a/lib/curl_setup.h
+++ b/lib/curl_setup.h
@@ -455,6 +455,11 @@
 #  define __NO_NET_API
 #endif
 
+/* Whether to use eventfd() */
+#if defined(HAVE_EVENTFD) && defined(HAVE_SYS_EVENTFD_H)
+#define USE_EVENTFD
+#endif
+
 #include <stdio.h>
 #include <assert.h>
 
diff --git a/lib/multi.c b/lib/multi.c
index 09afe804c0..858704beba 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -1408,7 +1408,7 @@ CURLMcode curl_multi_wakeup(CURLM *m)
      and before cleanup */
   if(multi->wakeup_pair[1] != CURL_SOCKET_BAD) {
     while(1) {
-#ifdef HAVE_EVENTFD
+#ifdef USE_EVENTFD
       /* eventfd has a stringent rule of requiring the 8-byte buffer when
          calling write(2) on it */
       const uint64_t buf[1] = { 1 };
@@ -2748,7 +2748,7 @@ CURLMcode curl_multi_cleanup(CURLM *m)
 #else
 #ifdef ENABLE_WAKEUP
     wakeup_close(multi->wakeup_pair[0]);
-#ifndef HAVE_EVENTFD
+#ifndef USE_EVENTFD
     wakeup_close(multi->wakeup_pair[1]);
 #endif
 #endif
diff --git a/lib/socketpair.c b/lib/socketpair.c
index 85fb7a826c..e4ca2cffa0 100644
--- a/lib/socketpair.c
+++ b/lib/socketpair.c
@@ -27,10 +27,9 @@
 #include "urldata.h"
 #include "rand.h"
 
-#ifdef HAVE_EVENTFD
-#ifdef HAVE_SYS_EVENTFD_H
+#ifdef USE_EVENTFD
+
 #include <sys/eventfd.h>
-#endif
 
 int Curl_eventfd(curl_socket_t socks[2], bool nonblocking)
 {
@@ -42,7 +41,9 @@ int Curl_eventfd(curl_socket_t socks[2], bool nonblocking)
   socks[0] = socks[1] = efd;
   return 0;
 }
+
 #elif defined(HAVE_PIPE)
+
 #ifdef HAVE_FCNTL
 #include <fcntl.h>
 #endif
@@ -72,8 +73,8 @@ int Curl_pipe(curl_socket_t socks[2], bool nonblocking)
 
   return 0;
 }
-#endif
 
+#endif /* USE_EVENTFD */
 
 #ifndef CURL_DISABLE_SOCKETPAIR
 #ifdef HAVE_SOCKETPAIR
diff --git a/lib/socketpair.h b/lib/socketpair.h
index da0d08b767..5541899445 100644
--- a/lib/socketpair.h
+++ b/lib/socketpair.h
@@ -26,7 +26,7 @@
 
 #include "curl_setup.h"
 
-#ifdef HAVE_EVENTFD
+#ifdef USE_EVENTFD
 
 #define wakeup_write  write
 #define wakeup_read   read
@@ -46,7 +46,7 @@ int Curl_eventfd(curl_socket_t socks[2], bool nonblocking);
 #include <curl/curl.h>
 int Curl_pipe(curl_socket_t socks[2], bool nonblocking);
 
-#else /* !HAVE_EVENTFD && !HAVE_PIPE */
+#else /* !USE_EVENTFD && !HAVE_PIPE */
 
 #define wakeup_write     swrite
 #define wakeup_read      sread
@@ -69,7 +69,7 @@ int Curl_pipe(curl_socket_t socks[2], bool nonblocking);
 #define wakeup_create(p,nb)\
 Curl_socketpair(SOCKETPAIR_FAMILY, SOCKETPAIR_TYPE, 0, p, nb)
 
-#endif /* HAVE_EVENTFD */
+#endif /* USE_EVENTFD */
 
 #ifndef CURL_DISABLE_SOCKETPAIR
 #include <curl/curl.h>