gnu: js-mathjax: Avoid "Too many open files" error while building.
* gnu/packages/javascript.scm (js-mathjax)[arguments]: Add call to 'close-pipe'. Previously builds would sometimes fail with EMFILE (this was non-deterministic as it depends on GC activity.)
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@ -117,7 +117,11 @@
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(let ((minified (open-pipe* OPEN_READ "uglify-js" file)))
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(call-with-output-file installed
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(lambda (port)
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(dump-port minified port)))))
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(dump-port minified port)))
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(let ((exit (close-pipe minified)))
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(unless (zero? exit)
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(error "dear, uglify-js failed" exit)))))
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(else
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(install-file file (dirname installed))))))
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(find-files "."))
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