bug#35855: [PATCH] gnu: Add coq-stdpp.

[Ludovic Courtès]

Hi Dan,

I took the liberty to apply the minor changes below and applied the
patch (grep, diffutils, etc. are implicit inputs of ‘gnu-build-system’,
so you don’t need to list them; as for ‘invoke’, it’s now the preferred
way to invoke programs.)

Thank you!

Ludo’.

diff --git a/gnu/packages/coq.scm b/gnu/packages/coq.scm
index 15a7e791f9..6c48af4fc9 100644
--- a/gnu/packages/coq.scm
+++ b/gnu/packages/coq.scm
@@ -551,11 +551,6 @@ kernel.")
               (sha256
                (base32 
"11m7kqxsbxygk41v2wsi3npdzwin9fcnzc1gn0gq0rd57wnqk83i"))))
     (build-system gnu-build-system)
-    (native-inputs
-     `(("grep" ,grep)  ;; need egrep for tests
-       ("gawk" ,gawk)
-       ;; need diff for tests
-       ("diffutils" ,diffutils)))
     (inputs
      `(("coq" ,coq)))
     (arguments
@@ -566,10 +561,10 @@ kernel.")
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              (setenv "COQLIB" (string-append (assoc-ref outputs "out") 
"/lib/coq/"))
-             (zero? (system* "make"
-                             (string-append "COQLIB=" (assoc-ref outputs "out")
-                                            "/lib/coq/")
-                             "install")))))))
+             (invoke "make"
+                     (string-append "COQLIB=" (assoc-ref outputs "out")
+                                    "/lib/coq/")
+                     "install"))))))
     (description "This project contains an extended \"Standard Library\" for
 Coq called coq-std++.  The key features are:
 @itemize