Fix packaging with vendor location

.gitmodules

@@ -1,6 +1,6 @@
-[submodule "vendor/lvgl"]
-	path = vendor/lvgl
-	url = https://github.com/littlevgl/lvgl.git
-[submodule "vendor/lv_sim_eclipse_sdl"]
-	path = vendor/lv_sim_eclipse_sdl
+[submodule "lvgl-sys/vendor/lv_sim_eclipse_sdl"]
+	path = lvgl-sys/vendor/lv_sim_eclipse_sdl
 	url = https://github.com/rafaelcaricio/lv_sim_eclipse_sdl.git
+[submodule "lvgl-sys/vendor/lvgl"]
+	path = lvgl-sys/vendor/lvgl
+	url = https://github.com/littlevgl/lvgl.git

lvgl-sys/build.rs

@@ -6,26 +6,25 @@ fn main() {
     let project_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap())
         .canonicalize()
         .unwrap();
-    let root_dir = project_dir.parent().unwrap();
-    let vendor = root_dir.join("vendor");
-    let lvgl_sys_src = root_dir.join("lvgl-sys").join("src");
-    let src = vendor.join("lvgl").join("src");
+    let vendor = project_dir.join("vendor");
+    let vendor_src = vendor.join("lvgl").join("src");
 
     // TODO: Make it configurable! Needs to be linked to final proj defs, define as an env var.
     let lvgl_config_path = vendor.join("lv_sim_eclipse_sdl");
 
     let mut cfg = Build::new();
 
-    add_c_files(&mut cfg, src.join("lv_core"));
-    add_c_files(&mut cfg, src.join("lv_draw"));
-    add_c_files(&mut cfg, src.join("lv_font"));
-    add_c_files(&mut cfg, src.join("lv_hal"));
-    add_c_files(&mut cfg, src.join("lv_misc"));
-    add_c_files(&mut cfg, src.join("lv_objx"));
-    add_c_files(&mut cfg, src.join("lv_themes"));
+    add_c_files(&mut cfg, vendor_src.join("lv_core"));
+    add_c_files(&mut cfg, vendor_src.join("lv_draw"));
+    add_c_files(&mut cfg, vendor_src.join("lv_font"));
+    add_c_files(&mut cfg, vendor_src.join("lv_hal"));
+    add_c_files(&mut cfg, vendor_src.join("lv_misc"));
+    add_c_files(&mut cfg, vendor_src.join("lv_objx"));
+    add_c_files(&mut cfg, vendor_src.join("lv_themes"));
 
     cfg.define("LV_CONF_INCLUDE_SIMPLE", Some("1"))
-        .include(&src)
+        .include(&vendor_src)
+        .include(&vendor)
         .warnings(false)
         .include(&lvgl_config_path)
         .compile("lvgl");
@@ -34,9 +33,11 @@ fn main() {
         "-DLV_CONF_INCLUDE_SIMPLE=1",
         "-I",
         lvgl_config_path.to_str().unwrap(),
+        "-I",
+        vendor.to_str().unwrap()
     ];
     bindgen::Builder::default()
-        .header(src.parent().unwrap().join("lvgl.h").to_str().unwrap())
+        .header(vendor_src.parent().unwrap().join("lvgl.h").to_str().unwrap())
         .layout_tests(false)
         .use_core()
         .ctypes_prefix("cty")
@@ -44,7 +45,7 @@ fn main() {
         .clang_args(&cc_args)
         .generate()
         .expect("Unable to generate bindings")
-        .write_to_file(lvgl_sys_src.join("bindings.rs"))
+        .write_to_file(project_dir.join("src").join("bindings.rs"))
         .expect("Can't write bindings!");
 }