gnu: Add argagg.

* gnu/packages/cpp.scm (argagg): New variable.

Co-authored-by: jgart <jgart@dismail.de>
Co-authored-by: Julien Lepiller <julien@lepiller.eu>
Co-authored-by: Disseminate Dissent <disseminatedissent@protonmail.com>
Signed-off-by: Nicolas Goaziou <mail@nicolasgoaziou.fr>

gnu/packages/cpp.scm

@@ -81,6 +81,45 @@
   #:use-module (gnu packages web)
   #:use-module (gnu packages xml))
 
+(define-public argagg
+  (let ((commit "79e4adfa2c6e2bfbe63da05cc668eb9ad5596748") (revision "0"))
+    (package
+      (name "argagg")
+      (version (git-version "0.4.6" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/vietjtnguyen/argagg")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "1flkgh524lq3024p7ld5lg743s1v7qnbmgv77578rzmn2rjzr77n"))))
+      (build-system cmake-build-system)
+      (outputs '("out" "doc"))
+      (arguments
+       `(#:phases (modify-phases %standard-phases
+                    (add-after 'install 'move-doc
+                      (lambda* (#:key outputs #:allow-other-keys)
+                        (let* ((name ,(package-name argagg)) (out (assoc-ref
+                                                                   outputs
+                                                                   "out"))
+                               (doc (assoc-ref outputs "doc")))
+                          (mkdir-p (string-append doc "/share/doc"))
+                          (rename-file
+                           (string-append out "/share/doc/" name)
+                           (string-append doc "/share/doc/" name))))))))
+      (native-inputs (list doxygen))
+      (home-page "https://github.com/vietjtnguyen/argagg")
+      (synopsis "C++11 command line argument parser")
+      (description
+       "ArgAgg is yet another C++ command line argument/option
+parser.  It was written as a simple and idiomatic alternative to other
+frameworks like getopt, Boost program options, TCLAP, and others.  The goal is
+to achieve the majority of argument parsing needs in a simple manner with an
+easy to use API.")
+      (license license:expat))))
+
 (define-public asmjit
   (let ((commit "4ec760a3d1f69e32ba460ecd2513f29b8428700b")
         (revision "0"))