diff options
Diffstat (limited to 'guix')
| -rw-r--r-- | guix/build/gnu-build-system.scm | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/guix/build/gnu-build-system.scm b/guix/build/gnu-build-system.scm index 112b34cd4d..2b7d1c180e 100644 --- a/guix/build/gnu-build-system.scm +++ b/guix/build/gnu-build-system.scm @@ -128,11 +128,18 @@ (string-append srcdir "/configure") flags)))) +(define %parallel-job-count + ;; String to be passed next to GNU Make's `-j' argument. + (match (getenv "NIX_BUILD_CORES") + (#f "1") + ("0" (number->string (current-processor-count))) + (x x))) + (define* (build #:key (make-flags '()) (parallel-build? #t) #:allow-other-keys) (zero? (apply system* "make" `(,@(if parallel-build? - `("-j" ,(getenv "NIX_BUILD_CORES")) + `("-j" ,%parallel-job-count) '()) ,@make-flags)))) @@ -142,7 +149,7 @@ (if tests? (zero? (apply system* "make" test-target `(,@(if parallel-tests? - `("-j" ,(getenv "NIX_BUILD_CORES")) + `("-j" ,%parallel-job-count) '()) ,@make-flags))) (begin |