On the core-updates branch, since commit 5f3f70391809f8791c55c05bd1646bc58508fa2c, bootstrapping fails early for armhf-linux and aarch64 when trying to build pkg-config (for python-boot0). That can be easily worked around with this patch:
diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index d28296449d..183536d0b4 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -1866,6 +1866,7 @@ the bootstrap environment."
(inherit python-minimal)
(inputs
`(("expat" ,expat-sans-tests))) ;remove OpenSSL, zlib, etc.
+ (native-inputs '()) ;and pkg-config
(arguments
(substitute-keyword-arguments (package-arguments
python-minimal)
But then Python fails at the configure stage because pthreads is not working with the bootstrap compiler on those platforms. I'm not sure what to do about it. I tried using 'python-on-guile' with this patch:
diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm
index f26145cb0b..747ec7c594 100644
--- a/gnu/packages/base.scm
+++ b/gnu/packages/base.scm
@@ -816,6 +816,33 @@ with the Linux kernel.")
(license lgpl2.0+)
(home-page "https://www.gnu.org/software/libc/";)))
+(define-public glibc-sans-python
+ (package
+ (inherit glibc)
+ (name "glibc-with-guile-python")
+ (arguments
+ (substitute-keyword-arguments (package-arguments glibc)
+ ((#:phases phases)
+ `(modify-phases ,phases
+ (add-after 'unpack 'patch-configure
+ (lambda _
+ ;; Relax Python version check.
+ (substitute* "configure"
+ (("\\$critic_missing python") "")
+ (("\\$PYTHON_PROG -B") "$PYTHON_PROG"))
+ #t))))))
+ (native-inputs `(("texinfo" ,texinfo)
+ ("perl" ,perl)
+ ("bison" ,bison)
+ ("gettext" ,gettext-minimal)
+ ("python" ,(@ (gnu packages guile-xyz) python-on-guile))
+ ,@(if (hurd-target?)
+ `(("mig" ,mig)
+ ("perl" ,perl))
+ '())))))
+
+
+
;; Below are old libc versions, which we use mostly to build locale data in
;; the old format (which the new libc cannot cope with.)
But the interpreter fails with 'unbound variable: this' upon running glibcs Python scripts. Until python-on-guile is complete enough to run the glibc scripts, I think we'll have to insert an older version of glibc into the bootstrap graph, so that Python can be built with pthreads on all platforms. WDYT?
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