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

[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

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

[Efraim Flashner]

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On Thu, Sep 22, 2022 at 08:21:58AM +0200, itd wrote:
> * 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

I added a comment that ghc-9.0.2 needs >= 8.8 to build and I removed the
extra git input (it was also inherited from 8.10). You might be
interested to know that when staging is eventually merged we've shorted
the bootstrap path slightly by trying to skip a few versions while
building out, so 9.2.x will hopefully also be buildable with 8.10.

Thanks! Patch pushed.

-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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