multiboot2-header: preparing v0.1.1

Author: phip1611

multiboot2-header/Cargo.toml

@@ -4,7 +4,7 @@ description = """
 Library with type definitions and parsing functions for Multiboot2 headers.
 This library is `no_std` and can be used in bootloaders.
 """
-version = "0.1.0"
+version = "0.1.1"
 authors = [
     "Philipp Schuster <phip1611@gmail.com>"
 ]
@@ -27,6 +27,12 @@ homepage = "https://github.com/rust-osdev/multiboot2-header"
 repository = "https://github.com/rust-osdev/multiboot2"
 documentation = "https://docs.rs/multiboot2-header"
 
+[features]
+# by default, builder is included
+default = ["builder"]
+std = []
+builder = ["std"]
+
 [dependencies]
 # used for MBI tags
-multiboot2 = "0.12.2"
+multiboot2 = "0.13.2"

multiboot2-header/README.md

@@ -15,6 +15,18 @@ What this library is good for:
 What this library is not optimal for:
 - compiling a Multiboot2 header statically into an object file using only Rust code
 
+## Features and Usage in `no_std`
+This library is always `no_std`. However, the `builder`-feature requires the `alloc`-crate
+to be available. You need the `builder` only if you want to construct new headers. For parsing,
+this is not relevant.
+
+```toml
+# without `builder`-feature (and without `alloc`-crate)
+multiboot2-header = { version = "<latest>", default-features = false }
+# else (requires `alloc`-crate)
+multiboot2-header = "<latest>"
+```
+
 ## Example 1: Builder + Parse
 ```rust
 use multiboot2_header::builder::Multiboot2HeaderBuilder;