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[Emacs-diffs] emacs-26 fec6308: Fix build on macOS (bug#28571)
From: |
Alan Third |
Subject: |
[Emacs-diffs] emacs-26 fec6308: Fix build on macOS (bug#28571) |
Date: |
Thu, 28 Sep 2017 14:05:26 -0400 (EDT) |
branch: emacs-26
commit fec63089d53d2196b0348086aeed70277fbc02c0
Author: Alan Third <address@hidden>
Commit: Alan Third <address@hidden>
Fix build on macOS (bug#28571)
* src/conf_post.h (HAVE_FUTIMENS, HAVE_FUTIMESAT, HAVE_UTIMENSAT)
[DARWIN_OS]: Undefine.
---
src/conf_post.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/conf_post.h b/src/conf_post.h
index febdb8b..af94608 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
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