From 9a97b8144ded0385d1e73ebb0bc1b66d1f5c461b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Sun, 26 May 2013 22:48:22 +0200
Subject: [PATCH] gnu: bash: Fix cross-compilation.

* gnu/packages/bash.scm (bash): Pass "bash_cv_job_control_missing=no"
  when (%current-target-system) is true.
---
 gnu/packages/bash.scm | 57 +++++++++++++++++++++++++------------------
 1 file changed, 33 insertions(+), 24 deletions(-)

diff --git a/gnu/packages/bash.scm b/gnu/packages/bash.scm
index 7caa26f36c..637c098604 100644
--- a/gnu/packages/bash.scm
+++ b/gnu/packages/bash.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -26,19 +26,29 @@
   #:use-module (guix build-system gnu))
 
 (define-public bash
-  (let ((cppflags (string-join '("-DSYS_BASHRC='\"/etc/bashrc\"'"
-                                 "-DSYS_BASH_LOGOUT='\"/etc/bash_logout\"'"
-                                 "-DDEFAULT_PATH_VALUE='\"/no-such-path\"'"
-                                 "-DSTANDARD_UTILS_PATH='\"/no-such-path\"'"
-                                 "-DNON_INTERACTIVE_LOGIN_SHELLS"
-                                 "-DSSH_SOURCE_BASHRC")
-                               " "))
-        (post-install-phase
-         '(lambda* (#:key outputs #:allow-other-keys)
-            ;; Add a `bash' -> `sh' link.
-            (let ((out (assoc-ref outputs "out")))
-              (with-directory-excursion (string-append out "/bin")
-                (symlink "bash" "sh"))))))
+  (let* ((cppflags (string-join '("-DSYS_BASHRC='\"/etc/bashrc\"'"
+                                  "-DSYS_BASH_LOGOUT='\"/etc/bash_logout\"'"
+                                  "-DDEFAULT_PATH_VALUE='\"/no-such-path\"'"
+                                  "-DSTANDARD_UTILS_PATH='\"/no-such-path\"'"
+                                  "-DNON_INTERACTIVE_LOGIN_SHELLS"
+                                  "-DSSH_SOURCE_BASHRC")
+                                " "))
+         (configure-flags
+          ``("--with-installed-readline"
+             ,,(string-append "CPPFLAGS=" cppflags)
+             ,(string-append
+               "LDFLAGS=-Wl,-rpath -Wl,"
+               (assoc-ref %build-inputs "readline")
+               "/lib"
+               " -Wl,-rpath -Wl,"
+               (assoc-ref %build-inputs "ncurses")
+               "/lib")))
+         (post-install-phase
+          '(lambda* (#:key outputs #:allow-other-keys)
+             ;; Add a `bash' -> `sh' link.
+             (let ((out (assoc-ref outputs "out")))
+               (with-directory-excursion (string-append out "/bin")
+                 (symlink "bash" "sh"))))))
     (package
      (name "bash")
      (version "4.2")
@@ -53,15 +63,12 @@
      (inputs `(("readline" ,readline)
                ("ncurses" ,ncurses)))             ; TODO: add texinfo
      (arguments
-      `(#:configure-flags `("--with-installed-readline"
-                            ,,(string-append "CPPFLAGS=" cppflags)
-                            ,(string-append
-                              "LDFLAGS=-Wl,-rpath -Wl,"
-                              (assoc-ref %build-inputs "readline")
-                              "/lib"
-                              " -Wl,-rpath -Wl,"
-                              (assoc-ref %build-inputs "ncurses")
-                              "/lib"))
+      `(;; When cross-compiling, `configure' incorrectly guesses that job
+        ;; control is missing.
+        #:configure-flags ,(if (%current-target-system)
+                               `(cons* "bash_cv_job_control_missing=no"
+                                       ,configure-flags)
+                               configure-flags)
 
         ;; Bash is reportedly not parallel-safe.  See, for instance,
         ;; <http://patches.openembedded.org/patch/32745/> and
@@ -75,7 +82,9 @@
 
         #:phases (alist-cons-after 'install 'post-install
                                    ,post-install-phase
-                                   %standard-phases)))
+                                   ,(if (%current-target-system)
+                                        '%standard-cross-phases
+                                        '%standard-phases))))
      (synopsis "The GNU Bourne-Again SHell")
      (description
       "Bash is the shell, or command language interpreter, that will appear in