Subject: [PATCH 1/3] gnu: Add python2-langkit.

From: Danny Milosavljevic <[email-masked]>
Date: Wed, 7 Mar 2018 02:05:43 +0100

* gnu/packages/adacore.scm: New file.
---
 gnu/packages/adacore.scm | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 gnu/packages/adacore.scm

diff --git a/gnu/packages/adacore.scm b/gnu/packages/adacore.scm
new file mode 100644
index 000000000..34415db8a
--- /dev/null
+++ b/gnu/packages/adacore.scm
@@ -0,0 +1,43 @@
+(define-module (gnu packages adacore)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix build-system python)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix git-download)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages check)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages python))
+
+(define-public python2-langkit
+  (let ((commit "fe0bc8bf60dbd2937759810df76ac420d99fc15f")
+        (revision "0"))
+    (package
+      (name "python2-langkit")
+      (version (git-version "0.0.0" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/AdaCore/langkit.git")
+                      (commit commit)))
+                (sha256
+                 (base32
+                  "1abqgw2p8pb1pm54my5kkbbixfhc6l0bwajdv1xlzyrh31xki3wx"))
+                (file-name (string-append name "-" version "-checkout"))))
+      (build-system python-build-system)
+      (propagated-inputs
+       `(("python2-docutils" ,python2-docutils)
+         ("python2-enum34" ,python2-enum34)
+         ("python2-funcy" ,python2-funcy)
+         ("python2-mako" ,python2-mako)))
+      (arguments
+       `(#:python ,python-2
+         #:tests? #f))           ; Tests would requite gprbuild (Ada).
+      (synopsis "Semantic analysis tool generator in Python")
+      (description "@code{Langkit} is a tool whose purpose is to make it easy
+to create syntactic and semantic analysis engines. Write a language
+specification in our Python DSL and Langkit will generate for you an
+Ada library with bindings for the C and Python programming languages.")
+      (home-page "https://github.com/AdaCore/langkit/")
+      (license license:gpl3+))))   ; and gcc runtime library exception