diff --git a/build_test.sh b/build_test.sh
index a89dd53..ca7a35d 100755
--- a/build_test.sh
+++ b/build_test.sh
@@ -1,4 +1,9 @@
 #!/bin/sh
 
-odin run src -o:none -debug -out:speedcat '-extra-linker-flags:-L/opt/homebrew/opt/llvm/lib' -- test_type_checker.cat
+set -xe
+
+LLVMC=llvm-config
+LLVM_LINKER="-lc++ $($LLVMC --libs core --cxxflags --ldflags --system-libs|tr '\n' ' ')"
+
+odin run src -o:none -debug -out:speedcat -extra-linker-flags:"$LLVM_LINKER" -- test_type_checker.cat
 clang -I/opt/homebrew/include /opt/homebrew/lib/libraylib.a -lm  -framework Cocoa -framework OpenGL -framework IOKit test_type_checker.ll test.c  -o raylib
diff --git a/llvm-project b/llvm-project
new file mode 160000
index 0000000..a612524
--- /dev/null
+++ b/llvm-project
@@ -0,0 +1 @@
+Subproject commit a61252419779a6d4a5ebf71e7e2fc4adc75cfddd
diff --git a/src/llvmc.odin b/src/llvmc.odin
index 85045b6..9685e19 100644
--- a/src/llvmc.odin
+++ b/src/llvmc.odin
@@ -3,7 +3,7 @@ package main
 when ODIN_OS == .Windows {
 	foreign import llvmc "llvm/win64/LLVM-C.lib"
 } else when ODIN_OS == .Linux || ODIN_OS == .Darwin {
-	foreign import llvmc "system:LLVM-C"
+	foreign import llvmc "system:LLVMCore"
 }
 
 LLVMBool :: distinct int
diff --git a/src/type_checker.odin b/src/type_checker.odin
index c595d05..97a0644 100644
--- a/src/type_checker.odin
+++ b/src/type_checker.odin
@@ -233,6 +233,21 @@ type_check :: proc(ast: ^Node, parent_ast: ^Node) {
 		}
 		scope_leave()
 	case .FunctionCall:
+		if ast.children[0].kind == .FieldAccess {
+			type_check(ast.children[0], ast)
+			if ast.children[0].return_type == nil {
+				append(
+					&g_message_list,
+					message_create(.Error, fmt.aprintf("Field access return type is nil"), ast.children[0].range),
+				)
+				break
+			}
+
+			lhs := ast.children[0].children[0]
+			rhs := ast.children[0].children[1]
+
+		}
+
 		type := scope_variable_lookup(ast.children[0].value.([dynamic]u8))
 		if type != nil {
 			name := ast.children[0].value.([dynamic]u8)
diff --git a/test_type_checker.cat b/test_type_checker.cat
index 76fe55a..7bb9f6e 100644
--- a/test_type_checker.cat
+++ b/test_type_checker.cat
@@ -44,26 +44,51 @@ struct Color {
 	a b g r: u8,
 }
 
+fn ClearBackground(c: u32)
+fn DrawRectangle(x y w h: i32, c: u32)
+fn DrawCircle(x y: i32, r: f32, c: u32)
+
 fn InitWindow(w h: i32, title: i32)
 fn CloseWindow
-fn ClearBackgroundWrap(c: Color)
 fn BeginDrawing
+fn SetTargetFPS(fps: i32)
 fn EndDrawing
 fn DrawFPS(x y: i32)
-fn DrawRectangleWrap(x y w h: i32, c: Color)
-fn DrawCircleWrap(x y: i32, r: f32, c: Color)
 fn WindowShouldClose i32
 
+1 << 3 | 2
+
+fn ColorToRaylib(c: Color) u32 {
+	ret c.a as u32 << 24 | c.b as u32 << 16 | c.g as u32 << 8 | c.r
+}
+
+fn ClearBackgroundWrap(c: Color) {
+	ClearBackground (ColorToRaylib c)
+}
+
+fn DrawRectangleWrap(x y w h: i32, c: Color) {
+	DrawRectangle x y w h (ColorToRaylib c)
+}
+
+fn DrawCircleWrap(x y: i32, r: f32, c: Color) {
+	DrawCircle x y r (ColorToRaylib c)
+}
+
 let white :: .Color{255 69 69 69}
 let red :: .Color{255 0 0 255}
 let blue :: .Color{255 0 255 255}
 
+let x := 0
+
 InitWindow 640 480 0
+SetTargetFPS 30
 for WindowShouldClose == 0 {
+	x = x + 1
+
 	BeginDrawing
 	ClearBackgroundWrap white
 	DrawFPS 20 20
-	DrawRectangleWrap 80 80 100 200 red
+	DrawRectangleWrap 80 x 100 200 red
 	DrawCircleWrap 200 200 100.0 blue
 	EndDrawing
 }