gnu: Add nanosvg.

* gnu/packages/graphics.scm (nanosvg): New variable.

gnu/packages/graphics.scm

@@ -21,7 +21,7 @@
 ;;; Copyright © 2020 Jakub Kądziołka <kuba@kadziolka.net>
 ;;; Copyright © 2020, 2021 Nicolas Goaziou <mail@nicolasgoaziou.fr>
 ;;; Copyright © 2020 Raghav Gururajan <raghavgururajan@disroot.org>
-;;; Copyright © 2020, 2021, 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
+;;; Copyright © 2020, 2021, 2022, 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;; Copyright © 2020 Gabriel Arazas <foo.dogsquared@gmail.com>
 ;;; Copyright © 2021 Antoine Côté <antoine.cote@posteo.net>
 ;;; Copyright © 2021 Andy Tai <atai@atai.org>
@@ -2496,6 +2496,33 @@ a tetrahedral mesh, isovalue discretization and Lagrangian movement;
 @end itemize")
     (license license:lgpl3+)))
 
+(define-public nanosvg
+  ;; There are no proper versions or releases; use the latest commit.
+  (let ((commit "9da543e8329fdd81b64eb48742d8ccb09377aed1")
+        (revision "0"))
+    (package
+      (name "nanosvg")
+      (version (git-version "0.0.0" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/memononen/nanosvg")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "1pkzv75kavkhrbdd2kvq755jyr0vamgrfr7lc33dq3ipkzmqvs2l"))))
+      (build-system cmake-build-system)
+      (arguments (list #:tests? #f    ;no test suite
+                       #:configure-flags #~(list "-DBUILD_SHARED_LIBS=ON")))
+      (home-page "https://github.com/memononen/nanosvg")
+      (synopsis "Simple SVG parser")
+      (description "NanoSVG is a simple single-header SVG parser.  The output
+of the parser is a list of cubic bezier shapes.  The library suits well for
+anything from rendering scalable icons in an editor application to prototyping
+a game.")
+      (license license:zlib))))
+
 (define-public f3d
   (package
     (name "f3d")