1 files changed, 58 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..3308ce1
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,58 @@
+{
+  description = "A very basic flake";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-21.05";
+  };
+
+  outputs =
+    { self
+    , nixpkgs
+    }:
+    let
+      supportedSystems = [ "x86_64-linux" ];
+      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
+
+      nixpkgsFor = forAllSystems (system:
+        import nixpkgs { inherit system; }
+      );
+
+    in
+    {
+      devShell = forAllSystems
+        (system:
+          let
+            pkgs = nixpkgsFor."${system}";
+          in
+          with pkgs;
+          mkShell {
+            nativeBuildInputs = [ gcc ];
+          });
+
+      apps = forAllSystems
+        (system:
+          let
+            pkgs = nixpkgsFor."${system}";
+            execs = with builtins; map toString [ 1 2 ];
+            mkApp = name: with pkgs; stdenv.mkDerivation {
+              name = "${name}";
+              src = ./src;
+              buildInputs = [ gcc ];
+              unpackPhase = ''
+                true
+              '';
+              buildPhase = ''
+                gcc -o main $src/${name}/main.c -fopenmp
+              '';
+              installPhase = ''
+                install -Dm755 main $out/bin/main
+              '';
+            };
+          in
+          with pkgs;
+          lib.genAttrs execs (p: {
+            type = "app";
+            program = "${mkApp p}/bin/main";
+          }));
+    };
+}