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