[bug#67075] [PATCH] build: zig-build-system: Add CPU option

[Ekaitz Zarraga <ekaitz@elenq.tech>]

From a647a8ee689022cafef4bab05784b32b1c97bee7 Mon Sep 17 00:00:00 2001
Message-ID: <a647a8ee689022cafef4bab05784b32b1c97bee7.1699708101.git.ekaitz@elenq.tech>
From: Ekaitz Zarraga <ekaitz@elenq.tech>
Date: Sat, 11 Nov 2023 14:05:23 +0100
Subject: [PATCH] build: zig-build-system: Add CPU option

Zig packages are optimized by default, adding `-Dcpu=baseline` to the
build command builds them for an standard cpu that should work in every
machine.

This change sets that by default but also allows users to choose their
cpu by the `#:zig-cpu` argument.

* guix/build-system/zig.scm (build): add zig-cpu
* guix/build/zig-build-system.scm (zig-build) add zig-cpu

Change-Id: Ib4b2124179e7b5492e7c77c64e1f8336832032ea
---
 guix/build-system/zig.scm       | 2 ++
 guix/build/zig-build-system.scm | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/guix/build-system/zig.scm b/guix/build-system/zig.scm
index 16b8a712cc..f90e76104e 100644
--- a/guix/build-system/zig.scm
+++ b/guix/build-system/zig.scm
@@ -47,6 +47,7 @@ (define* (zig-build name inputs
                     source
                     (tests? #t)
                     (test-target #f)
+                    (zig-cpu #f)
                     (zig-build-flags ''())
                     (zig-test-flags ''())
                     (zig-release-type #f)
@@ -67,6 +68,7 @@ (define* (zig-build name inputs
                      #:source #+source
                      #:system #$system
                      #:test-target #$test-target
+                     #:zig-cpu #$zig-cpu
                      #:zig-build-flags #$zig-build-flags
                      #:zig-test-flags #$zig-test-flags
                      #:zig-release-type #$zig-release-type
diff --git a/guix/build/zig-build-system.scm b/guix/build/zig-build-system.scm
index d414ebfb17..99a81314d4 100644
--- a/guix/build/zig-build-system.scm
+++ b/guix/build/zig-build-system.scm
@@ -44,6 +44,7 @@ (define* (set-zig-global-cache-dir #:rest args)
   (setenv "ZIG_GLOBAL_CACHE_DIR" global-cache-dir))
 
 (define* (build #:key
+                zig-cpu
                 zig-build-flags
                 zig-release-type       ;; "safe", "fast" or "small" empty for a
                                        ;; debug build"
@@ -59,6 +60,7 @@ (define* (build #:key
                      ,@(if zig-release-type
                          (list (string-append "-Drelease-" zig-release-type))
                          '())
+                     ,(string-append "-Dcpu=" (or zig-cpu "baseline"))
                      ,@zig-build-flags)))
   (format #t "running: ~s~%" call)
   (apply invoke call)))

base-commit: af6105afc67a15a491a0a4fd18a28c9f801a0b94
-- 
2.41.0