1 files changed, 28 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/olm/default.nix b/nixpkgs/pkgs/development/libraries/olm/default.nix
new file mode 100644
index 000000000000..dd3f83a0130d
--- /dev/null
+++ b/nixpkgs/pkgs/development/libraries/olm/default.nix
@@ -0,0 +1,28 @@
+{ stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "olm";
+  version = "3.0.0";
+
+  meta = {
+    description = "Implements double cryptographic ratchet and Megolm ratchet";
+    license = stdenv.lib.licenses.asl20;
+    homepage = https://matrix.org/git/olm/about;
+    platforms = with stdenv.lib.platforms; darwin ++ linux;
+  };
+
+  src = fetchurl {
+    url = "https://matrix.org/git/olm/snapshot/${pname}-${version}.tar.gz";
+    sha256 = "1iivxjk458v9lhqgzp0c4k5azligsh9k3rk6irf9ssj29wzgjm2c";
+  };
+
+  doCheck = true;
+  checkTarget = "test";
+
+  # requires optimisation but memory operations are compiled with -O0
+  hardeningDisable = ["fortify"];
+
+  makeFlags = if stdenv.cc.isClang then [ "CC=cc" ] else null;
+
+  installFlags = "PREFIX=$(out)";
+}