patch 7.4.1276
Problem: Warning for not using return value of fcntl().
Solution: Explicitly ignore the return value.
diff --git a/src/memfile.c b/src/memfile.c
index 4db84df..56719ee 100644
--- a/src/memfile.c
+++ b/src/memfile.c
@@ -1312,7 +1312,7 @@
#ifdef HAVE_FD_CLOEXEC
int fdflags = fcntl(mfp->mf_fd, F_GETFD);
if (fdflags >= 0 && (fdflags & FD_CLOEXEC) == 0)
- fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC);
+ (void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC);
#endif
#if defined(HAVE_SELINUX) || defined(HAVE_SMACK)
mch_copy_sec(fname, mfp->mf_fname);