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| author | Bruno Victal <mirai@makinata.eu> | 2023-05-06 15:19:40 +0100 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2023-05-06 18:07:37 +0200 |
| commit | 8ffe52df47353a3ae31375c0666aa6122bf4cf0b (patch) | |
| tree | e0001e02c08cbf22b5a34c5f0723c753ba3275c0 /doc | |
| parent | aaa0e7b3f8339463b9168d1953aa0da35612d444 (diff) | |
doc: Use G-Expressions for package definition example.
* doc/guix.texi (Build Phases): Use G-Expressions for example.
Co-authored-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/guix.texi | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 55221a10c3..e4b664aba9 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -10140,23 +10140,31 @@ phase before the @code{build} phase, called ;; other fields omitted (build-system gnu-build-system) (arguments - '(#:phases (modify-phases %standard-phases - (delete 'configure) - (add-before 'build 'set-prefix-in-makefile - (lambda* (#:key outputs #:allow-other-keys) - ;; Modify the makefile so that its - ;; 'PREFIX' variable points to "out". - (let ((out (assoc-ref outputs "out"))) - (substitute* "Makefile" - (("PREFIX =.*") - (string-append "PREFIX = " - out "\n"))))))))))) + (list + #:phases + #~(modify-phases %standard-phases + (delete 'configure) + (add-before 'build 'set-prefix-in-makefile + (lambda* (#:key inputs #:allow-other-keys) + ;; Modify the makefile so that its + ;; 'PREFIX' variable points to #$output and + ;; 'XMLLINT' points to the correct path. + (substitute* "Makefile" + (("PREFIX =.*") + (string-append "PREFIX = " #$output "\n")) + (("XMLLINT =.*") + (string-append "XMLLINT = " + (search-input-file inputs "/bin/xmllint") + "\n")))))))))) @end lisp The new phase that is inserted is written as an anonymous procedure, -introduced with @code{lambda*}; it honors the @code{outputs} parameter -we have seen before. @xref{Build Utilities}, for more about the helpers -used by this phase, and for more examples of @code{modify-phases}. +introduced with @code{lambda*}; it looks for the @file{xmllint} +executable under a @file{/bin} directory among the package's inputs +(@pxref{package Reference}). It also honors the @code{outputs} parameter +we have seen before. @xref{Build Utilities}, for more about +the helpers used by this phase, and for more examples of +@code{modify-phases}. @cindex code staging @cindex staging, of code |