/** 
 * @file llpreprocessor.h
 * @brief This file should be included in all Linden Lab files and
 * should only contain special preprocessor directives
 *
 * $LicenseInfo:firstyear=2001&license=viewergpl$
 * 
 * Copyright (c) 2001-2009, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 * 
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at
 * http://secondlifegrid.net/programs/open_source/licensing/flossexception
 * 
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 * 
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#ifndef LLPREPROCESSOR_H
#define LLPREPROCESSOR_H

// Figure out endianness of platform
#ifdef LL_LINUX
#define __ENABLE_WSTRING
#include <endian.h>
#endif	//	LL_LINUX

#if LL_SOLARIS
#   ifdef  __sparc     // Since we're talking Solaris 10 and up, only 64 bit is supported.
#      define LL_BIG_ENDIAN 1
#      define LL_SOLARIS_ALIGNED_CPU 1     //  used to designate issues where SPARC alignment is addressed
#      define LL_SOLARIS_NON_MESA_GL 1      //  The SPARC GL does not provide a MESA-based GL API
#   endif
#   include <sys/isa_defs.h> // ensure we know which end is up
#endif // LL_SOLARIS

#if (defined(LL_WINDOWS) || (defined(LL_LINUX) && (__BYTE_ORDER == __LITTLE_ENDIAN)) || (defined(LL_DARWIN) && defined(__LITTLE_ENDIAN__)) || (defined(LL_SOLARIS) && defined(__i386)))
#define LL_LITTLE_ENDIAN 1
#else
#define LL_BIG_ENDIAN 1
#endif

// Per-compiler switches
#ifdef __GNUC__
#define LL_FORCE_INLINE inline __attribute__((always_inline))
#else
#define LL_FORCE_INLINE __forceinline
#endif

// Figure out differences between compilers
#if defined(__GNUC__)
	#define GCC_VERSION (__GNUC__ * 10000 \
						+ __GNUC_MINOR__ * 100 \
						+ __GNUC_PATCHLEVEL__)
	#ifndef LL_GNUC
		#define LL_GNUC 1
	#endif
#elif defined(__MSVC_VER__) || defined(_MSC_VER)
	#ifndef LL_MSVC
		#define LL_MSVC 1
	#endif
	#if _MSC_VER < 1400
		#define LL_MSVC7 //Visual C++ 2003 or earlier
	#endif
#endif

// Deal with minor differences on Unixy OSes.
#if LL_DARWIN || LL_LINUX
	// Different name, same functionality.
	#define stricmp strcasecmp
	#define strnicmp strncasecmp

	// Not sure why this is different, but...
	#ifndef MAX_PATH
		#define MAX_PATH PATH_MAX
	#endif	//	not MAX_PATH

#endif


// Static linking with apr on windows needs to be declared.
#ifdef LL_WINDOWS
#ifndef APR_DECLARE_STATIC
#define APR_DECLARE_STATIC // For APR on Windows
#endif
#ifndef APU_DECLARE_STATIC
#define APU_DECLARE_STATIC // For APR util on Windows
#endif
#endif

#if defined(LL_WINDOWS)
#define BOOST_REGEX_NO_LIB 1
#define CURL_STATICLIB 1
#define XML_STATIC
#endif	//	LL_WINDOWS


// Deal with VC6 problems
#if LL_MSVC
#pragma warning( 3	     : 4701 )	// "local variable used without being initialized"  Treat this as level 3, not level 4.
#pragma warning( 3	     : 4702 )	// "unreachable code"  Treat this as level 3, not level 4.
#pragma warning( 3	     : 4189 )	// "local variable initialized but not referenced"  Treat this as level 3, not level 4.
//#pragma warning( 3	: 4018 )	// "signed/unsigned mismatch"  Treat this as level 3, not level 4.
#pragma warning( 3       : 4265 )	// "class has virtual functions, but destructor is not virtual"
#pragma warning( disable : 4786 )	// silly MS warning deep inside their <map> include file
#pragma warning( disable : 4284 )	// silly MS warning deep inside their <map> include file
#pragma warning( disable : 4503 )	// 'decorated name length exceeded, name was truncated'. Does not seem to affect compilation.
#pragma warning( disable : 4800 )	// 'BOOL' : forcing value to bool 'true' or 'false' (performance warning)
#pragma warning( disable : 4996 )	// warning: deprecated

// level 4 warnings that we need to disable:
#pragma warning (disable : 4100) // unreferenced formal parameter
#pragma warning (disable : 4127) // conditional expression is constant (e.g. while(1) )
#pragma warning (disable : 4244) // possible loss of data on conversions
#pragma warning (disable : 4396) // the inline specifier cannot be used when a friend declaration refers to a specialization of a function template
#pragma warning (disable : 4512) // assignment operator could not be generated
#pragma warning (disable : 4706) // assignment within conditional (even if((x = y)) )

#pragma warning (disable : 4251) // member needs to have dll-interface to be used by clients of class
#pragma warning (disable : 4275) // non dll-interface class used as base for dll-interface class
#endif	//	LL_MSVC

#if LL_WINDOWS
#define LL_DLLEXPORT __declspec(dllexport)
#define LL_DLLIMPORT __declspec(dllimport)
#else
#define LL_DLLEXPORT
#define LL_DLLIMPORT
#endif // LL_WINDOWS


#if LL_COMMON_LINK_SHARED
# if LL_COMMON_BUILD
#   define LL_COMMON_API LL_DLLEXPORT
# else //LL_COMMON_BUILD
#   define LL_COMMON_API LL_DLLIMPORT
# endif //LL_COMMON_BUILD
#else // LL_COMMON_LINK_SHARED
# define LL_COMMON_API
#endif // LL_COMMON_LINK_SHARED

#endif	//	not LL_LINDEN_PREPROCESSOR_H