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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2012 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages bash)
+ #:use-module (guix licenses)
+ #:use-module (gnu packages ncurses)
+ #:use-module (gnu packages readline)
+ #:use-module (guix packages)
+ #:use-module (guix download)
+ #:use-module (guix utils)
+ #: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"))))))
+ (package
+ (name "bash")
+ (version "4.2")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append
+ "mirror://gnu/bash/bash-" version ".tar.gz"))
+ (sha256
+ (base32
+ "1n5kbblp5ykbz5q8aq88lsif2z0gnvddg9babk33024wxiwi2ym2"))))
+ (build-system gnu-build-system)
+ (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"))
+
+ ;; Bash is reportedly not parallel-safe. See, for instance,
+ ;; <http://patches.openembedded.org/patch/32745/> and
+ ;; <http://git.buildroot.net/buildroot/commit/?h=79e2d802ae7e376a413c02097790493e1f65c3a4>.
+ #:parallel-build? #f
+ #:parallel-tests? #f
+
+ ;; XXX: The tests have a lot of hard-coded paths, so disable them
+ ;; for now.
+ #:tests? #f
+
+ #:phases (alist-cons-after 'install 'post-install
+ ,post-install-phase
+ %standard-phases)))
+ (synopsis "GNU Bourne-Again Shell")
+ (description
+ "Bash is the shell, or command language interpreter, that will appear in
+the GNU operating system. Bash is an sh-compatible shell that incorporates
+useful features from the Korn shell (ksh) and C shell (csh). It is intended
+to conform to the IEEE POSIX P1003.2/ISO 9945.2 Shell and Tools standard. It
+offers functional improvements over sh for both programming and interactive
+use. In addition, most sh scripts can be run by Bash without
+modification.")
+ (license gpl3+)
+ (home-page "http://www.gnu.org/software/bash/"))))
+
+(define-public bash-light
+ ;; A stripped-down Bash for non-interactive use.
+ (package (inherit bash)
+ (name "bash-light")
+ (inputs '()) ; no readline, no curses
+ (arguments
+ (let ((args `(#:modules ((guix build gnu-build-system)
+ (guix build utils)
+ (srfi srfi-1)
+ (srfi srfi-26))
+ ,@(package-arguments bash))))
+ (substitute-keyword-arguments args
+ ((#:configure-flags flags)
+ `(list "--without-bash-malloc"
+ "--disable-readline"
+ "--disable-history"
+ "--disable-help-builtin"
+ "--disable-progcomp"
+ "--disable-net-redirections"
+ "--disable-nls")))))))