From dc5e56c2f3b2d8dd1982aa3c848bc48946de2f1b Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Sat, 24 Oct 2015 00:53:03 +0100
Subject: [PATCH] Add GCC printf format check to _glfwInputError

This allows it to print a warning whenever _glfwInputError format
specifiers aren't used correctly.

Closes #622.
---
 src/internal.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/internal.h b/src/internal.h
index 56647a31..625dea00 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -784,7 +784,11 @@ void _glfwInputMonitorChange(void);
  *  description.
  *  @ingroup event
  */
-void _glfwInputError(int error, const char* format, ...);
+void _glfwInputError(int error, const char* format, ...)
+#ifdef __GNUC__
+__attribute__((format(printf, 2, 3)))
+#endif
+;
 
 /*! @brief Notifies dropped object over window.
  *  @param[in] window The window that received the event.