gnu: automake: Support cross-build.

Automake does not cross-built properly: it lacks the concept of
<tool>-for-build.  It runs the host `autoconf' during build.

* gnu/packages/autotools.scm (automake)[inputs]: Add autoconf, bash-minimal
and perl.  To avoid triggering a rebuild, do this while cross-compiling only.
[arguments]: When cross-building, add `patch-non-shebang-references' phase to
substitute autoconf and perl.
This commit is contained in:
Jan (janneke) Nieuwenhuizen 2020-04-18 19:50:06 +02:00 committed by Jan Nieuwenhuizen
parent b085d43633
commit d64a6d267d
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GPG key ID: F3C1A0D9C1D65273

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@ -293,6 +293,13 @@ (define-public automake
(patches
(search-patches "automake-skip-amhello-tests.patch"))))
(build-system gnu-build-system)
(inputs
;; TODO: remove `if' in the next rebuild cycle.
(if (%current-target-system)
`(("autoconf" ,autoconf-wrapper)
("bash" ,bash-minimal)
("perl" ,perl))
'()))
(native-inputs
`(("autoconf" ,autoconf-wrapper)
("perl" ,perl)))
@ -301,7 +308,7 @@ (define-public automake
(variable "ACLOCAL_PATH")
(files '("share/aclocal")))))
(arguments
'(#:modules ((guix build gnu-build-system)
`(#:modules ((guix build gnu-build-system)
(guix build utils)
(srfi srfi-1)
(srfi srfi-26)
@ -330,6 +337,28 @@ (define-public automake
(string-append "exit 77\n" all "\n")))
#t))
,@(if (%current-target-system)
`((add-after 'install 'patch-non-shebang-references
(lambda* (#:key build inputs outputs #:allow-other-keys)
;; `patch-shebangs' patches shebangs only, and the Perl
;; scripts use a re-exec feature that references the
;; build hosts' perl. Also, AUTOCONF and BASH store
;; references hide in the scripts.
(let ((autoconf (assoc-ref inputs "autoconf"))
(bash (assoc-ref inputs "bash"))
(perl (assoc-ref inputs "perl"))
(out (assoc-ref outputs "out"))
(store-directory (%store-directory)))
(substitute* (find-files (string-append out "/bin"))
(((string-append store-directory "/[^/]*-autoconf-[^/]*"))
autoconf)
(((string-append store-directory "/[^/]*-bash-[^/]*"))
bash)
(((string-append store-directory "/[^/]*-perl-[^/]*"))
perl))
#t))))
'())
;; Files like `install-sh', `mdate.sh', etc. must use
;; #!/bin/sh, otherwise users could leak erroneous shebangs
;; in the wild. See <http://bugs.gnu.org/14201> for an