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-rw-r--r--guix/build/compile.scm29
1 files changed, 26 insertions, 3 deletions
diff --git a/guix/build/compile.scm b/guix/build/compile.scm
index c4dbb6e34c..63f24fa7d4 100644
--- a/guix/build/compile.scm
+++ b/guix/build/compile.scm
@@ -84,9 +84,32 @@
(define (optimization-options file)
"Return the default set of optimizations options for FILE."
- (if (string-contains file "gnu/packages/")
- (optimizations-for-level 1) ;build faster
- (optimizations-for-level 3)))
+ (define (strip-option option lst)
+ (let loop ((lst lst)
+ (result '()))
+ (match lst
+ (()
+ (reverse result))
+ ((kw value rest ...)
+ (if (eq? kw option)
+ (append (reverse result) rest)
+ (loop rest (cons* value kw result)))))))
+
+ (define (override-option option value lst)
+ `(,option ,value ,@(strip-option option lst)))
+
+ (cond ((string-contains file "gnu/packages/")
+ ;; Level 0 is good enough but partial evaluation helps preserve the
+ ;; "macro writer's bill of rights".
+ (override-option #:partial-eval? #t
+ (optimizations-for-level 0)))
+ ((string-contains file "gnu/services/")
+ ;; '-O2 -Ono-letrectify' compiles about ~20% faster than '-O2' for
+ ;; large files like gnu/services/mail.scm.
+ (override-option #:letrectify? #f
+ (optimizations-for-level 2)))
+ (else
+ (optimizations-for-level 3))))
(define (scm->go file)
"Strip the \".scm\" suffix from FILE, and append \".go\"."