GNU bug report logs - #49025
[PATCH core-updates 00/37] Support cross-compilation with meson

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From: Maxime Devos <maximedevos <at> telenet.be>
To: 49025 <at> debbugs.gnu.org
Cc: othacehe <at> gnu.org, Maxime Devos <maximedevos <at> telenet.be>
Subject: [bug#49025] [PATCH v4 core-updates 22/36] openssl: Extract logic for computing CONFIGURE_TARGET_ARCH.
Date: Sat, 19 Jun 2021 17:04:44 +0200

By computing this value outside the build code, new targets
can be added without causing rebuilds for other targets.

* gnu/packages/tls.scm
  (target->openssl-target): New procedure.
  (openssl)[arguments]<#:phases>{set-cross-compile}: Use it.
---
 gnu/packages/tls.scm | 46 ++++++++++++++++++++++++++------------------
 1 file changed, 27 insertions(+), 19 deletions(-)

diff --git a/gnu/packages/tls.scm b/gnu/packages/tls.scm
index 72a1cd8f0c..1ed43f0ebd 100644
--- a/gnu/packages/tls.scm
+++ b/gnu/packages/tls.scm
@@ -310,6 +310,31 @@ required structures.")
 (define-public guile3.0-gnutls
   (deprecated-package "guile3.0-gnutls" gnutls))
 
+(define (target->openssl-target target)
+  "Return the value to set CONFIGURE_TARGET_ARCH to when cross-compiling
+OpenSSL for TARGET."
+  ;; Keep this code outside the build code,
+  ;; such that new targets can be added
+  ;; without causing rebuilds for other targets.
+  (cond ((string-prefix? "i586" target)
+         "hurd-x86")
+        ((string-prefix? "i686" target)
+         "linux-x86")
+        ((string-prefix? "x86_64" target)
+         "linux-x86_64")
+        ((string-prefix? "mips64el" target)
+         "linux-mips64")
+        ((string-prefix? "arm" target)
+         "linux-armv4")
+        ((string-prefix? "aarch64" target)
+         "linux-aarch64")
+        ((string-prefix? "powerpc64le" target)
+         "linux-ppc64le")
+        ((string-prefix? "powerpc64" target)
+         "linux-ppc64")
+        ((string-prefix? "powerpc" target)
+         "linux-ppc")))
+
 (define-public openssl
   (package
    (name "openssl")
@@ -348,25 +373,8 @@ required structures.")
                (lambda* (#:key target #:allow-other-keys)
                  (setenv "CROSS_COMPILE" (string-append target "-"))
                  (setenv "CONFIGURE_TARGET_ARCH"
-                         (cond
-                           ((string-prefix? "i586" target)
-                            "hurd-x86")
-                           ((string-prefix? "i686" target)
-                            "linux-x86")
-                           ((string-prefix? "x86_64" target)
-                            "linux-x86_64")
-                           ((string-prefix? "mips64el" target)
-                            "linux-mips64")
-                           ((string-prefix? "arm" target)
-                            "linux-armv4")
-                           ((string-prefix? "aarch64" target)
-                            "linux-aarch64")
-                           ((string-prefix? "powerpc64le" target)
-                            "linux-ppc64le")
-                           ((string-prefix? "powerpc64" target)
-                            "linux-ppc64")
-                           ((string-prefix? "powerpc" target)
-                            "linux-ppc"))))))
+                         #$(target->openssl-target
+                            (%current-target-system))))))
              #~())
         (replace 'configure
           (lambda _
-- 
2.32.0

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