MacOS build fixes.

README.md

@@ -68,7 +68,7 @@ I'm going to assume you're on Windows, but technically speaking this should work
 Getting it to work:
 
 1. Go to the `rust` folder and run `cargo build --release`. (Note: the crate requires that it is inside of a Git repostory, otherwise it will fail to build. This may not be the case if you downloaded the source code from the Releases page. In that case, run `git init` to create a `.git` folder as a workaround)
-2. After a while this should produce a DLL file called `bitmapflow_rust.dll` in the `rust/target/release` folder (On Linux this file will be called `libbitmapflow_rust.so`). Copy this file to the `godot` folder.
+2. After a while this should produce a DLL file called `bitmapflow_rust.dll` in the `rust/target/release` folder (On Linux this file will be called `libbitmapflow_rust.so`, or `libbitmapflow_rust.dylib` on MacOS). Copy this file to the `godot` folder.
 3. Now open Godot and run the project in the `godot` folder.
 
 That's all.
@@ -79,6 +79,20 @@ On Windows, the program crashes after the splash screen, or I get an error about
 
 - Install the [Visual Studio Redistributable](https://aka.ms/vs/16/release/vc_redist.x64.exe).
 
+On macOS you're getting the ```dyld: Library not loaded: @rpath/libclang.dylib``` error during the build process.
+
+OS can't find ```libclang.dylib``` dynamic library because it resides in a non-standard path, set up the DYLD_FALLBACK_LIBRARY_PATH environment variable to point to the path where ```libclang.dylib``` can be found, e.g. for Command Line Tools:
+
+```
+export DYLD_FALLBACK_LIBRARY_PATH="$(xcode-select --print-path)/usr/lib/"
+```
+
+or XCode:
+
+```
+export DYLD_FALLBACK_LIBRARY_PATH="$(xcode-select --print-path)/Toolchains/XcodeDefault.xctoolchain/usr/lib/"
+```
+
 On Windows, when exporting I get an error similar to "Failed to save spritesheet as [name]; Access is denied (os error 5)."
 
 - Disable your virus scanner and try again. If you don't have a virus scanner enabled, you may not have permission to export into your selected folder (e.g. the Program Files folder may require admin privileges), so try exporting to your own users folder instead, or the Desktop, for example.

godot/RustLibrary.tres

@@ -1,8 +1,9 @@
 [gd_resource type="GDNativeLibrary" format=2]
 
 [resource]
+entry/OSX.64 = "res://libbitmapflow_rust.dylib"
 entry/Windows.64 = "res://bitmapflow_rust.dll"
 entry/X11.64 = "res://libbitmapflow_rust.so"
-entry/Server = "res://libbitmapflow_rust.so"
+dependency/OSX.64 = [  ]
 dependency/Windows.64 = [  ]
 dependency/X11.64 = [  ]