1 files changed, 32 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/capnproto/default.nix b/nixpkgs/pkgs/development/libraries/capnproto/default.nix
new file mode 100644
index 000000000000..0eaf6eda07a5
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/capnproto/default.nix
@@ -0,0 +1,32 @@
+{ lib, stdenv, fetchFromGitHub, capnproto, cmake }:
+
+stdenv.mkDerivation rec {
+  pname = "capnproto";
+  version = "0.9.0";
+
+  # release tarballs are missing some ekam rules
+  src = fetchFromGitHub {
+    owner = "capnproto";
+    repo = "capnproto";
+    rev = "v${version}";
+    sha256 = "038i40apywn8sg95kwld4mg9p9m08izcw5xj7mwkmshycmqw65na";
+  };
+
+  nativeBuildInputs = [ cmake ]
+    ++ lib.optional (!(stdenv.hostPlatform.isCompatible stdenv.buildPlatform)) capnproto;
+
+  cmakeFlags = lib.optional (!(stdenv.hostPlatform.isCompatible stdenv.buildPlatform)) "-DEXTERNAL_CAPNP";
+
+  meta = with lib; {
+    homepage    = "https://capnproto.org/";
+    description = "Cap'n Proto cerealization protocol";
+    longDescription = ''
+      Cap’n Proto is an insanely fast data interchange format and
+      capability-based RPC system. Think JSON, except binary. Or think Protocol
+      Buffers, except faster.
+    '';
+    license     = licenses.mit;
+    platforms   = platforms.all;
+    maintainers = with maintainers; [ cstrahan ];
+  };
+}