From a881defc09b7439359275b4da489a800ee35edd4 Mon Sep 17 00:00:00 2001
From: Nicolas Graves <ngraves@ngraves.fr>
Date: Mon, 22 Dec 2025 18:03:58 +0100
Subject: [PATCH] gnu: python-pcpp: Switch to pyproject.

* gnu/packages/c.scm (python-pcpp):
[build-system]: Switch to pyproject-build-system.
[arguments]<#:test-backend, #:test-flags>: Set them.
[native-inputs]: Add python-setuptools.
[description]: Improve style.

Change-Id: Ib73ee56a32f3ad92adaff6127f3bfcb5e1d0a801
Signed-off-by: Sharlatan Hellseher <sharlatanus@gmail.com>
---
 gnu/packages/c.scm | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/gnu/packages/c.scm b/gnu/packages/c.scm
index 373f8bc697cc7deab74b3a747853f67f45f1b0f9..e2c168abbbf5735845f0a0c36e840c1e64a75eef 100644
--- a/gnu/packages/c.scm
+++ b/gnu/packages/c.scm
@@ -51,6 +51,7 @@
   #:use-module (guix build-system copy)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system meson)
+  #:use-module (guix build-system pyproject)
   #:use-module (guix build-system python)
   #:use-module (guix store)
   #:use-module (gnu packages)
@@ -72,6 +73,7 @@
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages pcre)
   #:use-module (gnu packages python)
+  #:use-module (gnu packages python-build)
   #:use-module (gnu packages python-xyz)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages gettext)
@@ -466,23 +468,26 @@ language as input.")
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "1rihvlg11nzk70kfzz4i3gi5izcy46w05ismcx04p5j1hlim0brb"))))
-    (build-system python-build-system)
+        (base32 "1rihvlg11nzk70kfzz4i3gi5izcy46w05ismcx04p5j1hlim0brb"))))
+    (build-system pyproject-build-system)
     (arguments
      (list
-      #:phases #~(modify-phases %standard-phases
-                   (add-after 'unpack 'unbundle-ply
-                     (lambda _
-                       (rmdir "pcpp/ply")
-                       (substitute* "setup.py"
-                         (("'pcpp/ply/ply'") "")))))))
-    (native-inputs (list python-pytest))
+      #:test-backend #~'unittest
+      #:test-flags #~(list "discover" "-s" "tests" "-p" "*.py")
+      #:phases
+      #~(modify-phases %standard-phases
+          (add-after 'unpack 'unbundle-ply
+            (lambda _
+              (rmdir "pcpp/ply")
+              (substitute* "setup.py"
+                (("'pcpp/ply/ply'")
+                 "")))))))
+    (native-inputs (list python-setuptools))
     (propagated-inputs (list python-ply))
     (home-page "https://github.com/ned14/pcpp")
     (synopsis "C99 preprocessor written in Python")
-    (description "This package provides a C99 preprocessor written in pure
-Python.")
+    (description
+     "This package provides a C99 preprocessor written in pure Python.")
     (license license:bsd-3)))
 
 (define-public aml