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gnu: Add flex-2.6.1.

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* gnu/packages/flex.scm (flex-2.6.1): New variable.
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Leo Famulari 2017-03-07 22:37:58 -05:00
parent 093c6f8bc7
commit aac67f210d
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1 changed files with 17 additions and 0 deletions
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17
gnu/packages/flex.scm
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@ -85,3 +85,20 @@ (define-public flex
executes the corresponding C code.")
(license (non-copyleft "file://COPYING"
"See COPYING in the distribution."))))
;;; Many packages fail to build with flex > 2.6.1, due to this bug in flex:
;;; <https://github.com/westes/flex/issues/162>
;;; We must not use a flex before 2.6.1, due to CVE-2016-6354.
;;; TODO Try using flex > 2.6.3.
(define-public flex-2.6.1
(package
(inherit flex)
(version "2.6.1")
(source (origin
(method url-fetch)
(uri (string-append "https://github.com/westes/flex"
"/releases/download/v" version "/"
"flex-" version ".tar.xz"))
(sha256
(base32
"0gqhk4vkwy4gl9xbpgkljph8c0a5kpijz6wd0p5r9q202qn42yic"))))))