1 files changed, 6 insertions, 3 deletions
diff --git a/io.c b/io.c
index e0e48ac3bc..11bdc85910 100644
--- a/io.c
+++ b/io.c
@@ -397,9 +397,12 @@ wsplit_p(OpenFile *fptr)
         struct stat buf;
         if (fstat(fileno(f), &buf) == 0 &&
             !(S_ISREG(buf.st_mode) ||
-              S_ISDIR(buf.st_mode)) &&
-            (r = fcntl(fileno(f), F_GETFL)) != -1 &&
-            !(r & O_NONBLOCK)) {
+              S_ISDIR(buf.st_mode))
+#if defined(HAVE_FCNTL) && defined(F_GETFL) && defined(O_NONBLOCK)
+            && (r = fcntl(fileno(f), F_GETFL)) != -1 &&
+            !(r & O_NONBLOCK)
+#endif
+            ) {
             fptr->mode |= FMODE_WSPLIT;
         }
         fptr->mode |= FMODE_WSPLIT_INITIALIZED;