Guix build fails for clasp@2.6.0-50-g09bd88a

[logoraz]

Describe the bug
Following build prescription in clasp.scm results missing dependency error, namely schubfach.hpp.

Expected behavior
Build proceeds successfully as previously observed for 2.6.0-32-g01cf28c..

Actual behavior
Build fails due to apparent missing dependency schubfach.hpp:

../src/core/float_to_digits.cc:36:10: fatal error: '../schubfach/schubfach.hpp' file not found
   36 | #include "../schubfach/schubfach.hpp"
        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

1 error generated.

Code at issue & Potential solution

Added path for schubfach.hpp to clasp.scm file which resolved issue and resulted in a successful build for clasp@2.6.0-50-g09bd88a, see code snippet below:

(define clasp-cl
  (let* ((source-dir (dirname (dirname (current-filename))))
         (version (git-checkout-description source-dir))
         (external-dirs               ; dirs containing nested Git repos
          (list (string-append source-dir "/src/lisp/kernel/contrib")
                (string-append source-dir "/dependencies")
                (string-append source-dir "/extensions")))
         (git-dirs
          (apply append
                 (list (string-append source-dir "/src/bdwgc")
                       ;; added the below path for schubfach which resolved issue of missing dependency
                       (string-append source-dir "/src/schubfach")
                       ;;
                       (string-append source-dir "/src/libatomic_ops")
                       (string-append source-dir "/src/lisp/modules/asdf"))
                 (map-in-order scandir-absolute external-dirs)))
         (descend-dirs (append git-dirs external-dirs))
         (predicates (map-in-order git-predicate (cons source-dir git-dirs))))...

Context

• Fails for clasp@2.6.0-50-g09bd88a
• Operating System: Guix SD