# HG changeset patch
# User Joerg Sonnenberger <joerg@bec.de>
# Date 1719248099 -7200
# Node ID e10b8388f27b97a7f218e30907ca93c74523ea0a
# Parent  21442f87f7fab25437a3ac8fe4687a4277970078
portability: fix build on Solaris-derived systemd

Current Illumos and older Solaris require _XOPEN_SOURCE for
msg_control. O_DIRECTORY doesn't exist on older systems either,
so fallback to O_RDONLY. It's good enough as a repository will
require both R and X permission anyway.

diff -r 21442f87f7fa -r e10b8388f27b contrib/chg/hgclient.c
--- a/contrib/chg/hgclient.c	Wed Jul 03 12:32:57 2024 +0200
+++ b/contrib/chg/hgclient.c	Mon Jun 24 18:54:59 2024 +0200
@@ -7,6 +7,11 @@
  * GNU General Public License version 2 or any later version.
  */
 
+#if defined(__sun) && !defined(_XOPEN_SOURCE)
+/* msg_control is used */
+#define _XOPEN_SOURCE 600
+#endif
+
 #include <arpa/inet.h> /* for ntohl(), htonl() */
 #include <assert.h>
 #include <ctype.h>
@@ -26,6 +31,10 @@
 #include "procutil.h"
 #include "util.h"
 
+#ifndef O_DIRECTORY
+#define O_DIRECTORY O_RDONLY
+#endif
+
 enum {
 	CAP_GETENCODING = 0x0001,
 	CAP_RUNCOMMAND = 0x0002,