From 7f52becc9a627d64c558b8a6a4210d2cca5cbe0c Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 26 Jun 2023 09:22:21 +0200
Subject: Make sure pkg-bindist can produce .tar.xz on Mac OS

---
 bpkg/system-package-manager-archive.cxx | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/bpkg/system-package-manager-archive.cxx b/bpkg/system-package-manager-archive.cxx
index 2639bb1..311893b 100644
--- a/bpkg/system-package-manager-archive.cxx
+++ b/bpkg/system-package-manager-archive.cxx
@@ -139,7 +139,17 @@ namespace bpkg
       const char* c (nullptr);
 
       if      (e == "tar.gz")  { c = "gzip";  l = "-9"; }
-      else if (e == "tar.xz")  { c = "xz";    l = "-9"; }
+      else if (e == "tar.xz")
+      {
+        // At least as of Mac OS 13 and Xcode 15, there is no standalone xz
+        // utility but tar seem to be capable of producing .tar.xz.
+        //
+#ifdef __APPLE__
+        l = "--options=compression-level=9";
+#else
+        c = "xz";    l = "-9";
+#endif
+      }
 
       if (c != nullptr)
       {
-- 
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