>From 7ea1a965d466de582659bc4a7f94af7cdfa8992d Mon Sep 17 00:00:00 2001
From: Raghav Gururajan <rg@raghavgururajan.name>
Date: Mon, 4 Jan 2021 23:59:17 -0500
Subject: [PATCH 10/20] gnu: Add range-v3.

* gnu/packages/cpp.scm (range-v3): New variable.
---
 gnu/packages/cpp.scm | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index 8b15533841..491332987b 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -49,6 +49,7 @@
   #:use-module (gnu packages compression)
   #:use-module (gnu packages crypto)
   #:use-module (gnu packages curl)
+  #:use-module (gnu packages documentation)
   #:use-module (gnu packages gcc)
   #:use-module (gnu packages libevent)
   #:use-module (gnu packages libunwind)
@@ -63,6 +64,37 @@
   #:use-module (gnu packages tls)
   #:use-module (gnu packages web))
 
+(define-public range-v3
+  (package
+    (name "range-v3")
+    (version "0.11.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri
+        (git-reference
+         (url "https://github.com/ericniebler/range-v3.git")
+         (commit version)))
+       (file-name
+        (git-file-name name version))
+       (sha256
+        (base32 "18230bg4rq9pmm5f8f65j444jpq56rld4fhmpham8q3vr1c1bdjh"))))
+    (build-system cmake-build-system)
+    (native-inputs
+     `(("doxygen" ,doxygen)
+       ("perl" ,perl)))
+    (inputs
+     `(("boost" ,boost)))
+    (synopsis "Range library for C++14/17/20")
+    (description "Range-v3 is the range library for C++14/17/20.  This code was
+the basis of a formal proposal to add range support to the C++ standard library.")
+    (home-page "https://github.com/ericniebler/range-v3/")
+    (license
+     (list
+      ;; Dual-Licensed
+      license:expat
+      license:ncsa))))
+
 (define-public gsl
   (package
     (name "gsl")
-- 
2.29.2