@@ -250,7 +250,24 @@ (define-public node
(find-files (string-append prefix "/lib/node_modules")
(lambda (file stat)
(executable-file? file))
- #:stat lstat))))))))
+ #:stat lstat)))))
+ (add-after 'install 'install-npmrc
+ ;; Note: programs like node-gyp only receive these values if
+ ;; they are started via `npm` or `npx`.
+ ;; See: https://github.com/nodejs/node-gyp#npm-configuration
+ (lambda* (#:key outputs #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out")))
+ (with-output-to-file
+ ;; Use the config file "primarily for distribution
+ ;; maintainers" rather than "{prefix}/etc/npmrc",
+ ;; especially because node-build-system uses --prefix
+ ;; to install things to their store paths:
+ (string-append out "/lib/node_modules/npm/npmrc")
+ (lambda ()
+ ;; Tell npm (mostly node-gyp) where to find our
+ ;; installed headers so it doesn't try to
+ ;; download them from the internet:
+ (format #t "nodedir=~a\n" out)))))))))
(native-inputs
`(;; Runtime dependencies for binaries used as a bootstrap.
("c-ares" ,c-ares)
@@ -818,4 +835,5 @@ (define-public libnode
`(cons* "--shared" "--without-npm" ,flags))
((#:phases phases '%standard-phases)
`(modify-phases ,phases
+ (delete 'install-npmrc)
(delete 'patch-nested-shebangs)))))))