Release 0.5.1

We disable the comments generation here because some comments
cause the `cargo test` command to fail. Some of the original
comments have invalid tokens like `TYPEDEFS` causing issues.
We should recommend users to look the original comments in the
original lvgl in their C API docs.

README.md

@@ -19,6 +19,20 @@ LittlevGL is compatible with <samp>#![no_std]</samp> environments by default.
 
 ![Rust bindings usage demo code.](demo.png)
 
+## System Build Dependencies
+
+In order to build the `lvgl` project you will need the following system dependencies to be installed:
+
+```
+$ sudo apt install build-essential llvm clang
+```
+
+If you want to build the examples, then you will need to install SDL2 as well.
+
+```
+$ sudo apt install libsdl2-dev
+```
+
 ## Usage
 
 Edit your `Cargo.toml` file dependencies with:

lvgl-codegen/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lvgl-codegen"
-version = "0.4.0"
-description = "Code generation based on LVGL source code"
+version = "0.5.1"
+description = "Code1generation based on LVGL source code"
 authors = ["Rafael Caricio <crates.lvgl@caric.io>"]
 readme = "README.md"
 edition = "2018"

lvgl-sys/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lvgl-sys"
 description = "Raw bindings to the LittlevGL C library."
-version = "0.4.0"
+version = "0.5.1"
 authors = ["Rafael Caricio <crates.lvgl-sys@caric.io>"]
 edition = "2018"
 license = "MIT"

lvgl-sys/build.rs

@@ -12,17 +12,24 @@ fn main() {
     let vendor_src = vendor.join("lvgl").join("src");
 
     let lv_config_dir = {
-        let raw_path = env::var(CONFIG_NAME).unwrap_or_else(|_| {
-            panic!(
-                "The environment variable {} is required to be defined",
-                CONFIG_NAME
-            );
+        let conf_path = env::var(CONFIG_NAME).map(|raw_path| PathBuf::from(raw_path)).unwrap_or_else(|_| {
+                match std::env::var("DOCS_RS") {
+                    Ok(_) => {
+                        // We've detected that we are building for docs.rs
+                        // so let's set the examples `lv_conf.h` file.
+                        project_dir.join("..").join("examples").join("include")
+                    }
+                    Err(_) => panic!(
+                        "The environment variable {} is required to be defined",
+                        CONFIG_NAME
+                    )
+            }
         });
-        let conf_path = PathBuf::from(raw_path);
 
         if !conf_path.exists() {
             panic!(format!(
-                "Directory referenced by {} needs to exist",
+                "Directory {} referenced by {} needs to exist",
+                conf_path.to_string_lossy(),
                 CONFIG_NAME
             ));
         }
@@ -94,6 +101,7 @@ fn main() {
     let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
     let bindings = bindgen::Builder::default()
         .header(shims_dir.join("lvgl_sys.h").to_str().unwrap())
+        .generate_comments(false)
         .layout_tests(false)
         .use_core()
         .rustfmt_bindings(true)

lvgl/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lvgl"
 description = "LittlevGL bindings for Rust. A powerful and easy-to-use embedded GUI with many widgets, advanced visual effects (opacity, antialiasing, animations) and low memory requirements (16K RAM, 64K Flash)."
-version = "0.4.0"
+version = "0.5.1"
 authors = ["Rafael Caricio <crates.lvgl@caric.io>"]
 edition = "2018"
 repository = "https://github.com/rafaelcaricio/lvgl-rs"
@@ -12,7 +12,7 @@ keywords = ["littlevgl", "lvgl", "graphical_interfaces"]
 build = "build.rs"
 
 [dependencies]
-lvgl-sys = { version = "0.4.0", path = "../lvgl-sys" }
+lvgl-sys = { version = "0.5.1", path = "../lvgl-sys" }
 cty = "0.2.1"
 embedded-graphics = "0.6.2"
 cstr_core = { version = "0.2.0" }
@@ -21,6 +21,6 @@ bitflags = "1.2.1"
 [build-dependencies]
 quote = "1.0.7"
 proc-macro2 = "1.0.18"
-lvgl-codegen = { version = "0.4.0", path = "../lvgl-codegen" }
-lvgl-sys = { version = "0.4.0", path = "../lvgl-sys" }
+lvgl-codegen = { version = "0.5.1", path = "../lvgl-codegen" }
+lvgl-sys = { version = "0.5.1", path = "../lvgl-sys" }