[bug#64708] [PATCH 5/8] gnu: commencement: mig-boot0: Update to 1.8+git20230520.

[Janneke Nieuwenhuizen]

* gnu/packages/commencement.scm (mig-boot0): Remove redundant
outer let.
[name]: New field, give proper name.
[version]: New field
[source]: Update to 1.8+git20230520, using git-fetch-from-tarball.
[native-inputs]: Add autoconf-boot0, automake-boot0.
[inputs]: Add gnumach-headers-boot0.
---
 gnu/packages/commencement.scm | 42 ++++++++++++++++++++++++++---------
 1 file changed, 31 insertions(+), 11 deletions(-)

diff --git a/gnu/packages/commencement.scm b/gnu/packages/commencement.scm
index b15a71feb3..05a6badea0 100644
--- a/gnu/packages/commencement.scm
+++ b/gnu/packages/commencement.scm
@@ -2696,17 +2696,37 @@ (define gnumach-headers-boot0
                    (("long_natural_t") "unsigned long")))))))))))
 
 (define mig-boot0
-  (let* ((mig (package
-                 (inherit (package-with-bootstrap-guile mig))
-                 (native-inputs `(("bison" ,bison-boot0)
-                                  ("flex" ,flex-boot0)))
-                 (inputs `(("flex" ,flex-boot0)))
-                 (arguments
-                  ;; TODO: On next rebuild cycle, reuse phases from 'mig'.
-                  `(#:configure-flags
-                    `(,(string-append "LDFLAGS=-Wl,-rpath="
-                                      (assoc-ref %build-inputs "flex") 
"/lib/")))))))
-    (with-boot0 mig)))
+  (with-boot0
+   (package
+     (inherit mig)
+     (name "mig-boot0")
+     (version "1.8+git20230520")
+     (source
+      (origin
+        (method
+         (git-fetch-from-tarball
+          (origin
+            (method url-fetch)
+            (uri (string-append
+                  "https://git.savannah.gnu.org/cgit/hurd/mig.git/snapshot/";
+                  "mig-" version ".tar.gz"))
+            (sha256
+             (base32 
"1l1vfm4wap5yxylv91wssgpy7fnq22wp3akgd5nv995kychfa9jy")))))
+        (uri (git-reference
+              (url "https://git.savannah.gnu.org/git/hurd/mig.git";)
+              (commit version)))
+        (file-name (git-file-name name version))
+        (sha256
+         (base32 "10r0fdjqjzqsy6ajb21rifvhw0wpjvrw6a1zdyliqlzqny5k0qlz"))))
+     (native-inputs (list autoconf-boot0 automake-boot0 bison-boot0 flex-boot0
+                          gnumach-headers-boot0))
+     (inputs (list flex-boot0 gnumach-headers-boot0))
+     (arguments
+      (list
+       #:configure-flags
+       #~(list (string-append "LDFLAGS=-Wl,-rpath="
+                              #$(this-package-native-input "flex")
+                              "/lib/")))))))
 
 (define hurd-version-boot0 "0.9-229-ga1efcee8")
 (define hurd-source-boot0
-- 
2.40.1