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gnu: xxhash: Detect vector instructions at run time.

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* gnu/packages/digest.scm (xxhash)[arguments]: Set DISPATCH=1 make flag
on x86.
This commit is contained in:
Tobias Geerinckx-Rice 2020-06-29 15:44:07 +02:00
parent 8db9300454
commit 1d25cfbaf4
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1 changed files with 7 additions and 1 deletions
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8
gnu/packages/digest.scm
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@ -21,7 +21,8 @@
#:use-module (guix packages) #:use-module (guix packages)
#:use-module (guix git-download) #:use-module (guix git-download)
#:use-module (guix build-system gnu) #:use-module (guix build-system gnu)
#:use-module (guix utils)) #:use-module (guix utils)
#:use-module (ice-9 match))
(define-public xxhash (define-public xxhash
(package (package
@ -40,6 +41,11 @@
(arguments (arguments
`(#:make-flags `(#:make-flags
(list ,(string-append "CC=" (cc-for-target)) (list ,(string-append "CC=" (cc-for-target))
,(match (or (%current-target-system)
(%current-system))
;; Detect vector instruction set at run time.
((or "i686-linux" "x86_64-linux") "DISPATCH=1")
(_ "DISPATCH=0"))
"XXH_FORCE_MEMORY_ACCESS=1" ; improved performance with GCC "XXH_FORCE_MEMORY_ACCESS=1" ; improved performance with GCC
(string-append "prefix=" (assoc-ref %outputs "out"))) (string-append "prefix=" (assoc-ref %outputs "out")))
#:phases #:phases