gnu: Add go-github-com-oschwald-geoip2-golang.

* gnu/packages/syncthing.scm (go-github-com-oschwald-geoip2-golang): New
variable.

gnu/packages/syncthing.scm

@@ -409,6 +409,35 @@ architectures.")
       (home-page "https://github.com/minio/sha256-simd")
       (license asl2.0))))
 
+(define-public go-github-com-oschwald-geoip2-golang
+  (let ((commit "0fd242da7906550802871efe101abfdb1cc550a8")
+        (revision "0"))
+    (package
+      (name "go-github-com-oschwald-geoip2-golang")
+      (version (git-version "0.1.0" revision commit))
+      (source (origin
+                (method git-fetch)
+                (uri (git-reference
+                      (url "https://github.com/oschwald/geoip2-golang")
+                      (commit commit)))
+                (file-name (git-file-name name version))
+                (sha256
+                 (base32
+                  "0kglnix0r5sjkk346ip30l7dwq1gv2g4wjy2cjmgjvb8x778hnww"))))
+      (build-system go-build-system)
+      (propagated-inputs
+       `(("go-github-com-oschwald-maxminddb-golang"
+          ,go-github-com-oschwald-maxminddb-golang)
+         ("go-golang-org-x-sys-unix" ,go-golang-org-x-sys-unix)))
+      (arguments
+       `(#:import-path "github.com/oschwald/geoip2-golang"
+         #:tests? #f)) ; Requires some unpackaged software and test data
+      (synopsis "MaxMind GeoIP2 reader")
+      (description "This packages provides a library for reading MaxMind
+GeoLite2 and GeoIP2 databases in Go.")
+      (home-page "https://github.com/oschwald/geoip2-golang")
+      (license isc))))
+
 (define-public go-github-com-oschwald-maxminddb-golang
   (let ((commit "697da8075d2061aa8ed639346443f5d3e8c80b30")
         (revision "0"))