From 925adc0782c4dd9b978a712b1b5645b5f31bf802 Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Sun, 12 Aug 2018 11:07:33 -0400
Subject: Fixed build errors.

---
 button.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'button.go')

diff --git a/button.go b/button.go
index a0c4e67..630c684 100644
--- a/button.go
+++ b/button.go
@@ -8,6 +8,8 @@ import (
 
 // #include "ui.h"
 // extern void doButtonOnClicked(uiButton *, void *);
+// // see golang/go#19835
+// typedef void (*buttonCallback)(uiButton *, void *);
 import "C"
 
 // Button is a Control that represents a button that the user can
@@ -27,7 +29,7 @@ func NewButton(text string) *Button {
 	b.b = C.uiNewButton(ctext)
 	freestr(ctext)
 
-	C.uiButtonOnClicked(b.b, C.doButtonOnClicked, nil)
+	C.uiButtonOnClicked(b.b, C.buttonCallback(C.doButtonOnClicked), nil)
 
 	b.ControlBase = NewControlBase(b, uintptr(unsafe.Pointer(b.b)))
 	return b
-- 
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