08/08: guix: pyproject-build-system: Default configure-flags to empty dictionary.

[guix-commits]

lbraun pushed a commit to branch pyproject-toml
in repository guix.

commit b3726639df72aa3943d8e403e3c2b9a6cde05421
Author: Lars-Dominik Braun <lars@6xq.net>
AuthorDate: Sun Jul 30 13:36:37 2023 +0200

    guix: pyproject-build-system: Default configure-flags to empty dictionary.
    
    PEP 517 specifies it should be a dictionary and thus meson-python cannot
    handle an empty list.
    
    Fixes: <https://issues.guix.gnu.org/62781>
---
 gnu/packages/build-tools.scm    | 10 ++--------
 gnu/packages/python-science.scm |  5 -----
 guix/build-system/pyproject.scm |  2 +-
 3 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/gnu/packages/build-tools.scm b/gnu/packages/build-tools.scm
index a365cca849..09a8a175e8 100644
--- a/gnu/packages/build-tools.scm
+++ b/gnu/packages/build-tools.scm
@@ -355,10 +355,7 @@ resembles Python.")
                 "1hpjw9qj6ff8ixjs0pz7qysc8v57jxgaf5n1p6bqm9bh3mc3wnrx"))))
     (build-system pyproject-build-system)
     (arguments
-     ;; The project is configured to use itself to build ('mesonpy') and fails;
-     ;; use another PEP 517 build system.
-     (list #:build-backend "setuptools.build_meta"
-           #:test-flags #~(list "tests"
+     (list #:test-flags #~(list "tests"
                                 ;; The test_pep518 tries to install
                                 ;; dependencies from the network using pip.
                                 "-k" "not test_pep518")))
@@ -370,10 +367,7 @@ resembles Python.")
            python-tomli
            python-wheel))
     (native-inputs
-     (list python-pypa-build
-           python-wheel
-
-           ;; For tests.
+     (list ;; For tests.
            git-minimal/pinned
            patchelf
            pkg-config
diff --git a/gnu/packages/python-science.scm b/gnu/packages/python-science.scm
index 538a3c2f0e..47890389b5 100644
--- a/gnu/packages/python-science.scm
+++ b/gnu/packages/python-science.scm
@@ -93,11 +93,6 @@
     (build-system pyproject-build-system)
     (arguments
      (list
-      ;; FIXME: The default 'mesonpy' build system doesn't seem to work with
-      ;; our pyproject-build-system, errors with: AttributeError: 'list'
-      ;; object has no attribute 'items' (see:
-      ;; https://issues.guix.gnu.org/62781).
-      #:build-backend "setuptools.build_meta"
       #:phases
       #~(modify-phases %standard-phases
           (replace 'check
diff --git a/guix/build-system/pyproject.scm b/guix/build-system/pyproject.scm
index 585117cbf0..c0e089eac7 100644
--- a/guix/build-system/pyproject.scm
+++ b/guix/build-system/pyproject.scm
@@ -93,7 +93,7 @@
 (define* (pyproject-build name inputs
                           #:key source
                           (tests? #t)
-                          (configure-flags ''())
+                          (configure-flags ''(@))
                           (backend-path #f)
                           (build-backend #f)
                           (test-backend #f)