From cf2a8755db2c77df490fd29a5bcc5afa139a7a2b Mon Sep 17 00:00:00 2001
From: Sughosha <Sughosha@proton.me>
Date: Fri, 16 Jun 2023 15:02:45 +0000
Subject: gnu: Add optional-lite.

* gnu/packages/cpp.scm (optional-lite): New variable.
---
 gnu/packages/cpp.scm | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'gnu/packages/cpp.scm')

diff --git a/gnu/packages/cpp.scm b/gnu/packages/cpp.scm
index 5402e333f5..72f04b25a0 100644
--- a/gnu/packages/cpp.scm
+++ b/gnu/packages/cpp.scm
@@ -2376,6 +2376,29 @@ (define-public sajson-for-gemmi
        ((#:tests? _ #f) #f)))
     (properties '((hidden? . #t)))))
 
+(define-public optional-lite
+  (package
+    (name "optional-lite")
+    (version "3.5.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/martinmoene/optional-lite")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+                (base32
+                 "0jpsm94kp1504yk9s2km86zv8xrszz30qanmhz2ljmvsdblz2l47"))))
+    (build-system cmake-build-system)
+    (home-page "https://github.com/martinmoene/optional-lite")
+    (synopsis "Nullable object for C++98, C++11 and later")
+    (description
+     "Optional lite is a single-file header-only library to represent optional
+(nullable) objects and pass them by value.  The library aims to provide a
+C++17-like optional for use with C++98 and later.  If available,
+@code{std::optional} is used.")
+    (license license:boost1.0)))
+
 (define-public optionparser
   (package
     (name "optionparser")
-- 
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