From e542108f1341448810eb4f1d4512d4e1c77c9811 Mon Sep 17 00:00:00 2001
From: Efraim Flashner <efraim@flashner.co.il>
Date: Mon, 10 Jun 2024 09:20:12 +0300
Subject: [PATCH] transformations: Fix powerpc64le support.

* guix/transformations.scm (tuning-compiler): Adjust the wrapper script
when building for powerpc* architectures to pass the correct flags.

Change-Id: I9d809ac9b707eb8d6afa7b843c95bce29862a752
---
 guix/transformations.scm | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/guix/transformations.scm b/guix/transformations.scm
index f02b9f94d6..582f8a2729 100644
--- a/guix/transformations.scm
+++ b/guix/transformations.scm
@@ -504,8 +504,12 @@ actual compiler."
                             (list "-C" (string-append "target_cpu="
                                                       #$micro-architecture)))
                            (else
-                             (list (string-append "-march="
-                                                  #$micro-architecture))))))))))))
+                             (list
+                               ;; Some architectures take '-mcpu' and not '-march'.
+                               (if (string-prefix? "power" #$micro-architecture)
+                                   (string-append "-mcpu=" #$micro-architecture)
+                                   (string-append "-march="
+                                                  #$micro-architecture)))))))))))))
 
     (define program
       (program-file (string-append "tuning-compiler-wrapper-" micro-architecture)