stm.patch

diff --git a/source/main.d b/source/main.d
index e366b3c..e7db6e8 100644
--- a/source/main.d
+++ b/source/main.d
@@ -20,7 +20,7 @@ import trace = stm32f42.trace;
 import statusLED = board.statusLED;
 import random = board.random;
 
-void main()
+int main(char[][] args)
 {        
        lcd.fillRect(0, 0, lcd.getWidth(), lcd.getHeight(), 0x07E0);
        
@@ -41,4 +41,5 @@ void main()
        statusLED.toggle();
        
     }
+    return 0;
 }
\ No newline at end of file
diff --git a/source/runtime/__entrypoint.d b/source/runtime/__entrypoint.d
index a78e3ac..c6a421a 100644
--- a/source/runtime/__entrypoint.d
+++ b/source/runtime/__entrypoint.d
@@ -3,10 +3,9 @@
 // See https://github.com/D-Programming-GDC/GDC/blob/48384612969fe90bdf88f562d1017bd8c5ec8612/gcc/d/d-lang.cc#L747
 module __entrypoint;
 
-extern(C) int _Dmain(char[][] args);
-extern(C) int _d_run_main(int argc, char **argv, void* mainFunc);
-
 extern(C) int main(int argc, char **argv)
 {
-    return _d_run_main(argc, argv, &_Dmain);
+    static import dmain2;
+    static import main;
+    return dmain2._d_run_main(argc, argv, &main.main);
 }
\ No newline at end of file
diff --git a/source/runtime/dmain2.d b/source/runtime/dmain2.d
index ac83bc8..9754017 100644
--- a/source/runtime/dmain2.d
+++ b/source/runtime/dmain2.d
@@ -1,6 +1,6 @@
 module dmain2;
 
-private alias extern(C) int function(char[][] args) MainFunc;
+private alias int function(char[][] args) MainFunc;
 
 extern (C) int _d_run_main(int argc, char **argv, MainFunc mainFunc)
 {