GNU bug report logs - #49569
[PATCH] gnu: Add make-single-arch-llvm procedure.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Efraim Flashner <efraim <at> flashner.co.il>
Subject: bug#49569: closed (Re: bug#49569: [PATCH] gnu: Add
 make-single-arch-llvm procedure.)
Date: Mon, 30 Jan 2023 18:13:01 +0000

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Your bug report

#49569: [PATCH] gnu: Add make-single-arch-llvm procedure.

which was filed against the guix-patches package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 49569 <at> debbugs.gnu.org.

-- 
49569: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=49569
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Efraim Flashner <efraim <at> flashner.co.il>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 49569-done <at> debbugs.gnu.org
Subject: Re: bug#49569: [PATCH] gnu: Add make-single-arch-llvm procedure.
Date: Mon, 30 Jan 2023 20:12:33 +0200

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I think we can drop this with llvm-for-mesa in core-updates.

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Efraim Flashner   <efraim <at> flashner.co.il>   אפרים פלשנר
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From: Efraim Flashner <efraim <at> flashner.co.il>
To: guix-patches <at> gnu.org
Cc: Efraim Flashner <efraim <at> flashner.co.il>
Subject: [PATCH] gnu: Add make-single-arch-llvm procedure.
Date: Thu, 15 Jul 2021 13:04:52 +0300

* gnu/packages/llvm.scm (make-single-arch-llvm): New procedure.
(llvm-native-12, llvm-native): New variables.
---

Using this copy of llvm for packages like mesa will reduce the closure
of those packages. I don't suppose it would work as well for compilers
like rust which use LLVM for compiling and targeting different
architectures.

This drops the size of llvm-12 from 167M to 111M.

 gnu/packages/llvm.scm | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm
index 575c63c713..35cecdfd84 100644
--- a/gnu/packages/llvm.scm
+++ b/gnu/packages/llvm.scm
@@ -1347,3 +1347,27 @@ LLVM."))))
 (define-public ocaml-llvm-9 (make-ocaml-llvm llvm-9))
 (define-public ocaml-llvm-10 (make-ocaml-llvm llvm-10))
 (define-public ocaml-llvm-11 (make-ocaml-llvm llvm-11))
+
+(define* (make-single-arch-llvm llvm #:optional (system (or (%current-target-system)
+                                                            (%current-system))))
+  (package
+    (inherit llvm)
+    (name (string-append "llvm-for-" (string-downcase
+                                       (system->llvm-target system))))
+    (arguments
+     (substitute-keyword-arguments (package-arguments llvm)
+       ((#:configure-flags cf)
+        `(cons* ,(string-append "-DLLVM_TARGETS_TO_BUILD="
+                                (system->llvm-target system))
+                ,cf))))
+    (synopsis "Compiler with support for a single architecture")))
+
+(define-public llvm-native-12
+  (package
+    (inherit (make-single-arch-llvm llvm-12))
+    (name "llvm-native")))
+
+(define-public llvm-native
+  (package
+    (inherit (make-single-arch-llvm llvm))
+    (name "llvm-native")))

base-commit: 17c8fedc256406047c7a1e8317bc52641c621286
-- 
2.32.0

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