allow globally disabling precompiled deps

lib/bundlex/project.ex

@@ -47,15 +47,21 @@ defmodule Bundlex.Project do
     - `precompiled` - Downloads the dependency from a given url and sets appropriate compilation
     and linking flags. Can be either `{:precompiled, url, libs}` or `{:precompiled, url}`, in which
     case the dependency name will be used as the lib name.
-    Precompiled dependencies for given applications (Mix projects) can be disabled via configuration, for example:
+    Precompiled dependencies can be disabled via configuration globally:
 
-  ```elixir
-    config :bundlex, :disable_precompiled_os_deps,
-      apps: [:my_application, :another_application]
-    ```
+      ```elixir
+      config :bundlex, :disable_precompiled_os_deps, true
+      ```
 
-    Note that this will affect the natives and libs defined in the `bundlex.exs` files of specified
-    applications only, not in their dependencies.
+      or for given applications (Mix projects), for example:
+
+      ```elixir
+      config :bundlex, :disable_precompiled_os_deps,
+        apps: [:my_application, :another_application]
+      ```
+
+      Note that this will affect the natives and libs defined in the `bundlex.exs` files of specified
+      applications only, not in their dependencies.
 
     Check `t:os_dep/0` for details.
   * `pkg_configs` - (deprecated, use `os_deps` instead) Names of libraries for which the appropriate flags will be

lib/bundlex/toolchain/common/unix/os_deps.ex

@@ -38,7 +38,7 @@ defmodule Bundlex.Toolchain.Common.Unix.OSDeps do
       end
 
     if is_old_api do
-      IO.warn("""
+      Output.warn("""
       Native #{inspect(native_name)} uses deprecated syntax for `os_deps`. \
       See `Bundlex.Project.os_dep` for the new syntax.
       """)
@@ -110,12 +110,13 @@ defmodule Bundlex.Toolchain.Common.Unix.OSDeps do
   end
 
   defp resolve_os_dep_provider(name, {:precompiled, url, lib_names}, native) do
-    disabled_apps =
-      Application.get_env(:bundlex, :disable_precompiled_os_deps, [])
-      |> Keyword.get(:apps, [])
-      |> Bunch.listify()
+    is_precompiled_disabled =
+      case Application.get_env(:bundlex, :disable_precompiled_os_deps, false) do
+        bool when is_boolean(bool) -> bool
+        [apps: apps] -> native.app in Bunch.listify(apps)
+      end
 
-    if native.app in disabled_apps do
+    if is_precompiled_disabled do
       {:error,
        """
        is disabled in the application configuration, check the config.exs file.