flake.nix

@@ -25,6 +25,10 @@
             src = ./.;
             version = "0.1.3";
             nativeBuildInputs = with pkgs; [ cmake ];
+            buildPhase = ''
+              cmake -DCMAKE_BUILD_TYPE=Release .
+              cmake --build .
+            '';
             installPhase = ''
               mkdir -p $out/bin
               cp ./bootstrap $out/bin

specs/clang/template/CMakeLists.txt

@@ -1,13 +1,6 @@
 cmake_minimum_required(VERSION 3.15)
 project("<NAME>" VERSION 0.1.0)
 
-# The default CMAKE_BUILD_TYPE is undefined, i.e. toolchain specific. Enforcing
-# a default makes builds work more consistently.
-if (NOT CMAKE_BUILD_TYPE)
-  message("CMAKE_BUILD_TYPE was not set. Defaulting to Debug")
-  set(CMAKE_BUILD_TYPE Debug)
-endif()
-
 # The primary executable.
 add_executable("<NAME>" main.c)