[bug#58000] [PATCH] gnu: Add ghc-9.0.

[itd]

* gnu/packages/haskell.scm (ghc-9.0): New variable.
---
Hi,

this patch introduces GHC 9.0.2.  (More recent than the latest GHC in Guix and
prerequisite to build newer GHC releases, to my understanding.)
Please consider applying it.  Thanks!

Regards
itd

 gnu/packages/haskell.scm | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index effc6eeb1b..0afa4d1ce9 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -1011,6 +1011,41 @@ (define-public ghc-8.10
 
 (define-public ghc-8 ghc-8.10)
 
+(define-public ghc-9.0
+  (package
+    (inherit ghc-8.10)
+    (name "ghc-next")
+    (version "9.0.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "https://www.haskell.org/ghc/dist/"; version
+                                  "/ghc-" version "-src.tar.xz"))
+              (sha256
+               (base32
+                "15wii8can2r3dcl6jjmd50h2jvn7rlmn05zb74d2scj6cfwl43hl"))))
+    (native-inputs `(("ghc-bootstrap" ,ghc-8.10)
+                     ("ghc-testsuite"
+                      ,(origin
+                         (method url-fetch)
+                         (uri (string-append
+                               "https://www.haskell.org/ghc/dist/";
+                               version "/ghc-" version "-testsuite.tar.xz"))
+                         (sha256
+                          (base32
+                           
"1m5fzhr4gjn9ni8gxx7ag3fkbw1rspjzgv39mnfb0nkm5mw70v3s"))))
+                     ("git" ,git-minimal/fixed) ;invoked during tests
+                     ,@(filter (match-lambda
+                                 (("ghc-bootstrap" . _) #f)
+                                 (("ghc-testsuite" . _) #f)
+                                 (_ #t))
+                               (package-native-inputs ghc-8.10))))
+    (native-search-paths
+     (list (search-path-specification
+            (variable "GHC_PACKAGE_PATH")
+            (files (list (string-append "lib/ghc-" version)))
+            (file-pattern ".*\\.conf\\.d$")
+            (file-type 'directory))))))
+
 (define-public ghc ghc-8)
 
 ;;; haskell.scm ends here

base-commit: 04cad8e29ed85be838921c7fa05f7c5bce94b6d1
-- 
2.37.3