[bug#72813] [PATCH] gnu: packages: Fix git system configuration.

[Lilah Tascheter via Guix-patches <guix-patches@gnu.org>]

Git's system config path is, by default, relative to the install prefix.
Fix this to use the usual system path.

System config is is pretty much the only way to change git config for
system services.

* gnu/packages/version-control.scm (git/fixed): New variable.
  (git)[replacement]: Graft with git/fixed.

Change-Id: I44ae667baee6c9389a8f81da743d67d1a63070ed
---
 gnu/packages/version-control.scm | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
index 42bd4a5744..efb91da8af 100644
--- a/gnu/packages/version-control.scm
+++ b/gnu/packages/version-control.scm
@@ -251,6 +251,7 @@ (define-public git
             (sha256
              (base32
               "1nws1vjgj54sv32wxl1h3n1jkcpabqv7a605hhafsby0n5zfigsi"))))
+   (replacement git/fixed)
    (build-system gnu-build-system)
    (native-inputs
     `(("native-perl" ,perl)
@@ -629,6 +630,14 @@ (define-public git
     (license license:gpl2)
     (home-page "https://git-scm.com/")))
 
+(define git/fixed
+  (package
+    (inherit git)
+    (arguments
+      (substitute-keyword-arguments (package-arguments git)
+        ((#:configure-flags flags #~'())
+         #~(cons "--with-gitconfig=/etc/gitconfig" #$flags))))))
+
 (define-public git-minimal
   ;; The size of the closure of 'git-minimal' is two thirds that of 'git'.
   ;; Its test suite runs slightly faster and most importantly it doesn't

base-commit: 9e57f3bcd4b3c4c8936358d3160f0d4f996204ce
-- 
2.45.2