Add some external dependencies.

extern/pvrtextool/Include/PVRTError.h

@@ -0,0 +1,71 @@
+/******************************************************************************
+
+ @File         PVRTError.h
+
+ @Title        PVRTError
+
+ @Version      
+
+ @Copyright    Copyright (c) Imagination Technologies Limited. All Rights Reserved. Strictly Confidential.
+
+ @Platform     ANSI compatible
+
+ @Description  
+
+******************************************************************************/
+#ifndef _PVRTERROR_H_
+#define _PVRTERROR_H_
+
+#if defined(ANDROID)
+	#include <android/log.h>
+#else
+	#if defined(_WIN32)
+		#include <windows.h>
+	#else
+		#include <stdio.h>
+	#endif
+#endif
+/*!***************************************************************************
+ Macros
+*****************************************************************************/
+
+/*! Outputs a string to the standard error if built for debugging. */
+#if !defined(PVRTERROR_OUTPUT_DEBUG)
+	#if defined(_DEBUG) || defined(DEBUG)
+		#if defined(ANDROID)
+			#define PVRTERROR_OUTPUT_DEBUG(A) __android_log_print(ANDROID_LOG_INFO, "PVRTools", A);
+		#elif defined(_WIN32)
+			#define PVRTERROR_OUTPUT_DEBUG(A) OutputDebugStringA(A);
+		#else
+			#define PVRTERROR_OUTPUT_DEBUG(A) fprintf(stderr,A);
+		#endif
+	#else
+		#define PVRTERROR_OUTPUT_DEBUG(A)
+	#endif
+#endif
+
+
+/*!***************************************************************************
+ Enums
+*****************************************************************************/
+/*! Enum error codes */
+enum EPVRTError
+{
+	PVR_SUCCESS = 0,
+	PVR_FAIL = 1,
+	PVR_OVERFLOW = 2
+};
+
+/*!***************************************************************************
+ @Function			PVRTErrorOutputDebug
+ @Input				format		printf style format followed by arguments it requires
+ @Description		Outputs a string to the standard error.
+*****************************************************************************/
+void PVRTErrorOutputDebug(char const * const format, ...);
+
+#endif // _PVRTERROR_H_
+
+/*****************************************************************************
+End of file (PVRTError.h)
+*****************************************************************************/
+