From e3a597378ebfc69e044e5c0317a337bd46a593bf Mon Sep 17 00:00:00 2001
From: David CARLIER <devnexen@gmail.com>
Date: Wed, 3 Feb 2021 19:44:34 +0000
Subject: [PATCH] mariabackup utility, binary path implementation for Mac.

implements in a native way get_exepath which gives reliably the full
path.
---
 extra/mariabackup/xtrabackup.cc | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/extra/mariabackup/xtrabackup.cc b/extra/mariabackup/xtrabackup.cc
index 49a774ba576..f02520787e6 100644
--- a/extra/mariabackup/xtrabackup.cc
+++ b/extra/mariabackup/xtrabackup.cc
@@ -61,6 +61,10 @@ Street, Fifth Floor, Boston, MA 02110-1335 USA
 #include <sys/resource.h>
 #endif
 
+#ifdef __APPLE__
+# include "libproc.h"
+#endif
+
 
 #include <btr0sea.h>
 #include <dict0priv.h>
@@ -6913,6 +6917,12 @@ static int get_exepath(char *buf, size_t size, const char *argv0)
   ssize_t ret = readlink("/proc/self/exe", buf, size-1);
   if(ret > 0)
     return 0;
+#elif defined(__APPLE__)
+  size_t ret = proc_pidpath(getpid(), buf, static_cast<uint32_t>(size));
+  if (ret > 0) {
+    buf[ret] = 0;
+    return 0;
+  }
 #endif
 
   return my_realpath(buf, argv0, 0);