From 819741778f6ad75b5b104d2107a8fd9e30d4d4e5 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 30 Nov 2020 13:10:26 +0200
Subject: Canonicalize arm64 to aarch64 in target triplet, similar to
 config.sub

---
 libbutl/target-triplet.cxx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'libbutl/target-triplet.cxx')

diff --git a/libbutl/target-triplet.cxx b/libbutl/target-triplet.cxx
index 17337b3..db71e3c 100644
--- a/libbutl/target-triplet.cxx
+++ b/libbutl/target-triplet.cxx
@@ -48,7 +48,12 @@ namespace butl
     if (f == 0 || f == string::npos)
       bad ("missing cpu");
 
-    cpu.assign (s, 0, f);
+    // Canonicalize CPU.
+    //
+    if (s.compare (0, f, "arm64") == 0)
+      cpu = "aarch64";
+    else
+      cpu.assign (s, 0, f);
 
     // If we have something in between, then the first component after CPU is
     // VENDOR. Unless it is a first component of two-component system, as in
-- 
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