[bug#62438] [PATCH] gnu: llvm: fix riscv64 cross-compile.

[Z572]

* gnu/packages/llvm.scm: (llvm-15 llvm-14 llvm-12): fix riscv64 cross-compile
[arguments]: <#:configure>: when target is riscv64, set 
-DLLVM_TARGET_ARCH=RISCV64.
---
 gnu/packages/llvm.scm | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm
index e5bf9f5cae..f8691414d8 100644
--- a/gnu/packages/llvm.scm
+++ b/gnu/packages/llvm.scm
@@ -26,6 +26,7 @@
 ;;; Copyright ?? 2022 John Kehayias <john.kehayias@protonmail.com>
 ;;; Copyright ?? 2022 Cl??ment Lassieur <clement@lassieur.org>
 ;;; Copyright ?? 2022 Zhu Zihao <all_but_last@163.com>
+;;; Copyright ?? 2023 Zheng Junjie <873216071@qq.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -598,7 +599,9 @@ (define-public llvm-15
                    #$(string-append "-DLLVM_DEFAULT_TARGET_TRIPLE="
                                     (%current-target-system))
                    #$(string-append "-DLLVM_TARGET_ARCH="
-                                    (system->llvm-target))
+                                    (if (target-riscv64?)
+                                        "RISCV64"
+                                        (system->llvm-target)))
                    #$(string-append "-DLLVM_TARGETS_TO_BUILD="
                                     (system->llvm-target)))
                 '())
@@ -658,7 +661,9 @@ (define-public llvm-14
                    #$(string-append "-DLLVM_DEFAULT_TARGET_TRIPLE="
                                     (%current-target-system))
                    #$(string-append "-DLLVM_TARGET_ARCH="
-                                    (system->llvm-target))
+                                    (if (target-riscv64?)
+                                        "RISCV64"
+                                        (system->llvm-target)))
                    #$(string-append "-DLLVM_TARGETS_TO_BUILD="
                                     (system->llvm-target)))
                 '())
@@ -910,7 +915,9 @@ (define-public llvm-12
                       #$(string-append "-DLLVM_DEFAULT_TARGET_TRIPLE="
                                        (%current-target-system))
                       #$(string-append "-DLLVM_TARGET_ARCH="
-                                       (system->llvm-target))
+                                       (if (target-riscv64?)
+                                           "RISCV64"
+                                           (system->llvm-target)))
                       #$(string-append "-DLLVM_TARGETS_TO_BUILD="
                                        (system->llvm-target)))
                    #~())
-- 
2.39.2