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gnu: make-bootstrap: Memoize GCC variant.

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This reduces the number of nodes in "guix graph guile-static-stripped"
from 165 to 150.  Likewise, the hit rate in the 'add-data-to-store'
cache for "guix build guile-static-stripped -nd" goes from 24% to 12%.

* gnu/packages/make-bootstrap.scm (gcc-for-bootstrap): New procedure.
(package-with-relocatable-glibc): Use it.
This commit is contained in:
Ludovic Courtès 2019-11-09 22:22:39 +01:00
parent 2a4309de43
commit 0c72a719ef
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GPG key ID: 090B11993D9AEBB5
1 changed files with 34 additions and 28 deletions
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62
gnu/packages/make-bootstrap.scm
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@ -88,6 +88,39 @@ (define glibc-for-bootstrap
;; contain store file names, so the CRC changes at every rebuild.)
(outputs (delete "debug" (package-outputs base))))))
(define gcc-for-bootstrap
(mlambdaq (glibc)
"Return a variant of GCC that uses the bootstrap variant of GLIBC."
(package
(inherit gcc)
(outputs '("out")) ;all in one so libgcc_s is easily found
(native-search-paths
;; Set CPLUS_INCLUDE_PATH so GCC is able to find the libc
;; C++ headers.
(cons (search-path-specification
(variable "CPLUS_INCLUDE_PATH")
(files '("include")))
(package-native-search-paths gcc)))
(inputs
`( ;; Distinguish the name so we can refer to it below.
("bootstrap-libc" ,(glibc-for-bootstrap glibc))
("libc:static" ,(glibc-for-bootstrap glibc) "static")
,@(package-inputs gcc)))
(arguments
(substitute-keyword-arguments (package-arguments gcc)
((#:phases phases)
`(modify-phases ,phases
(add-before 'configure 'treat-glibc-as-system-header
(lambda* (#:key inputs #:allow-other-keys)
(let ((libc (assoc-ref inputs "bootstrap-libc")))
;; GCCs build processes requires that the libc
;; we're building against is on the system header
;; search path.
(for-each (lambda (var)
(setenv var (string-append libc "/include")))
'("C_INCLUDE_PATH" "CPLUS_INCLUDE_PATH"))
#t))))))))))
(define (package-with-relocatable-glibc p)
"Return a variant of P that uses the libc as defined by
`glibc-for-bootstrap'."
@ -127,34 +160,7 @@ (define (native-inputs)
,@(%final-inputs)))
`(("libc" ,(glibc-for-bootstrap glibc))
("libc:static" ,(glibc-for-bootstrap glibc) "static")
("gcc" ,(package (inherit gcc)
(outputs '("out")) ;all in one so libgcc_s is easily found
(native-search-paths
;; Set CPLUS_INCLUDE_PATH so GCC is able to find the libc
;; C++ headers.
(cons (search-path-specification
(variable "CPLUS_INCLUDE_PATH")
(files '("include")))
(package-native-search-paths gcc)))
(inputs
`(;; Distinguish the name so we can refer to it below.
("bootstrap-libc" ,(glibc-for-bootstrap glibc))
("libc:static" ,(glibc-for-bootstrap glibc) "static")
,@(package-inputs gcc)))
(arguments
(substitute-keyword-arguments (package-arguments gcc)
((#:phases phases)
`(modify-phases ,phases
(add-before 'configure 'treat-glibc-as-system-header
(lambda* (#:key inputs #:allow-other-keys)
(let ((libc (assoc-ref inputs "bootstrap-libc")))
;; GCCs build processes requires that the libc
;; we're building against is on the system header
;; search path.
(for-each (lambda (var)
(setenv var (string-append libc "/include")))
'("C_INCLUDE_PATH" "CPLUS_INCLUDE_PATH"))
#t)))))))))
("gcc" ,(gcc-for-bootstrap glibc))
,@(fold alist-delete (%final-inputs) '("libc" "gcc")))))
(package-with-explicit-inputs p inputs