1 files changed, 41 insertions, 0 deletions
diff --git a/pkgs/development/compilers/flutter/engine/constants.nix b/pkgs/development/compilers/flutter/engine/constants.nix
new file mode 100644
index 0000000000000..9b7907fc337f7
--- /dev/null
+++ b/pkgs/development/compilers/flutter/engine/constants.nix
@@ -0,0 +1,41 @@
+{ lib, targetPlatform }:
+rec {
+  os =
+    if targetPlatform.isLinux then
+      "linux"
+    else if targetPlatform.isDarwin then
+      "macos"
+    else if targetPlatform.isWindows then
+      "windows"
+    else
+      throw "Unsupported OS \"${targetPlatform.parsed.kernel.name}\"";
+
+  arch =
+    if targetPlatform.isx86_64 then
+      "amd64"
+    else if targetPlatform.isx86 && targetPlatform.is32bit then
+      "386"
+    else if targetPlatform.isAarch64 then
+      "arm64"
+    else if targetPlatform.isMips && targetPlatform.parsed.cpu.significantByte == "littleEndian" then
+      "mipsle"
+    else if targetPlatform.isMips64 then
+      "mips64${lib.optionalString (targetPlatform.parsed.cpu.significantByte == "littleEndian") "le"}"
+    else if targetPlatform.isPower64 then
+      "ppc64${lib.optionalString (targetPlatform.parsed.cpu.significantByte == "littleEndian") "le"}"
+    else if targetPlatform.isS390x then
+      "s390x"
+    else
+      throw "Unsupported CPU \"${targetPlatform.parsed.cpu.name}\"";
+
+  alt-arch =
+    if targetPlatform.isx86_64 then
+      "x64"
+    else if targetPlatform.isAarch64 then
+      "arm64"
+    else
+      targetPlatform.parsed.cpu.name;
+
+  platform = "${os}-${arch}";
+  alt-platform = "${os}-${alt-arch}";
+}