GNU bug report logs - #67859
[PATCH] gnu: libsigsegv: Fix x86_64 cross-compilation.

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From: Leo Nikkilä <hello <at> lnikki.la>
To: 67859 <at> debbugs.gnu.org
Cc: Leo Nikkilä <hello <at> lnikki.la>
Subject: [bug#67859] [PATCH] gnu: libsigsegv: Fix x86_64 cross-compilation.
Date: Sun, 17 Dec 2023 00:57:28 +0200

* gnu/packages/libsigsegv.scm (libsigsegv): Set `#:phases' for x86_64.
---
 gnu/packages/libsigsegv.scm | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/libsigsegv.scm b/gnu/packages/libsigsegv.scm
index ebbdd2ad90..39c76cd462 100644
--- a/gnu/packages/libsigsegv.scm
+++ b/gnu/packages/libsigsegv.scm
@@ -1,6 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2012, 2013, 2018 Ludovic Courtès <ludo <at> gnu.org>
 ;;; Copyright © 2017 Efraim Flashner <efraim <at> flashner.co.il>
+;;; Copyright © 2023 Leo Nikkilä <hello <at> lnikki.la>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -41,6 +42,21 @@ (define-public libsigsegv
     `(;; The shared library isn't built by default but some packages need it.
       #:configure-flags '("--enable-shared")
 
+      ;; When cross-compiling for x86_64, work around this error:
+      ;;
+      ;; In file included from fault-linux-x86_64-old.h:17,
+      ;;    [...]
+      ;; linux-libre-headers-cross-x86_64-linux-gnu-5.15.49/include/asm/sigcontext.h:317:8: error: redefinition of ‘struct sigcontext’
+      ,@(if (string-contains (or (%current-target-system)
+                                 (%current-system))
+                             "x86_64")
+            `(#:phases (modify-phases %standard-phases
+                         (add-before 'configure 'patch-x86_64-old-h
+                           (lambda _
+                             (substitute* "src/fault-linux-x86_64-old.h"
+                               (("#include <asm/sigcontext\\.h>") ""))))))
+            '())
+
       ;; On MIPS, work around this error:
       ;;
       ;; In file included from fault-linux-mips-old.h:18:0,
@@ -52,8 +68,7 @@ (define-public libsigsegv
                          (add-before 'configure 'patch-mips-old-h
                            (lambda _
                              (substitute* "src/fault-linux-mips-old.h"
-                               (("#include <asm/sigcontext\\.h>") ""))
-                             #t))))
+                               (("#include <asm/sigcontext\\.h>") ""))))))
             '())))
    (description
     "GNU libsigsegv is a library to handle page faults, which occur when a
-- 
2.41.0

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