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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013 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 libsigsegv)
#:use-module (guix licenses)
#:use-module (guix packages)
#:use-module (guix download)
#:use-module (guix build-system gnu))
(define-public libsigsegv
(package
(name "libsigsegv")
(version "2.10")
(source (origin
(method url-fetch)
(uri (string-append
"mirror://gnu/libsigsegv/libsigsegv-"
version ".tar.gz"))
(sha256
(base32 "16hrs8k3nmc7a8jam5j1fpspd6sdpkamskvsdpcw6m29vnis8q44"))))
(build-system gnu-build-system)
(home-page "http://www.gnu.org/software/libsigsegv/")
(synopsis "Library for handling page faults")
(arguments
;; On MIPS, work around this error:
;;
;; In file included from fault-linux-mips-old.h:18:0,
;; [...]
;; linux-libre-headers-cross-mips64el-linux-gnu-3.3.8/include/asm/sigcontext.h:57:8: error: redefinition of 'struct sigcontext'
(if (string-contains (or (%current-target-system) (%current-system))
"mips64el")
`(#:phases (alist-cons-before
'configure 'patch-mips-old-h
(lambda _
(substitute* "src/fault-linux-mips-old.h"
(("#include <asm/sigcontext\\.h>") "")))
,(if (%current-target-system)
'%standard-cross-phases
'%standard-phases)))
'()))
(description
"GNU libsigsegv is a library for handling page faults in user mode. A page
fault occurs when a program tries to access to a region of memory that is
currently not available. Catching and handling a page fault is a useful
technique for implementing pageable virtual memory, memory-mapped access to
persistent databases, generational garbage collectors, stack overflow
handlers, distributed shared memory, and more.")
(license gpl2+)))
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