1 files changed, 9 insertions, 0 deletions

diff --git a/src/conf_post.h b/src/conf_post.h
index febdb8b8bf7..af946082eec 100644
--- a/src/conf_post.h
+++ b/src/conf_post.h
@@ -397,3 +397,12 @@ extern int emacs_setenv_TZ (char const *);
 #else
 # define UNINIT /* empty */
 #endif
+
+/* macOS 10.13 supports futimens, futimesat and utimensat, older
+   versions don't but can appear as though they do.  Disable them
+   entirely to avoid breaking cross-version builds on macOS.  */
+#ifdef DARWIN_OS
+# undef HAVE_FUTIMENS
+# undef HAVE_FUTIMESAT
+# undef HAVE_UTIMENSAT
+#endif