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-rw-r--r--gnu/packages/boost.scm4
1 files changed, 3 insertions, 1 deletions
diff --git a/gnu/packages/boost.scm b/gnu/packages/boost.scm
index ccc1f0664f..ab31fa8c5c 100644
--- a/gnu/packages/boost.scm
+++ b/gnu/packages/boost.scm
@@ -90,7 +90,9 @@
(replace
'build
(lambda* (#:key outputs make-flags #:allow-other-keys)
- (zero? (apply system* "./b2" make-flags))))
+ (zero? (apply system* "./b2"
+ (format #f "-j~a" (parallel-job-count))
+ make-flags))))
(replace
'install
(lambda* (#:key outputs make-flags #:allow-other-keys)