/*
	File:		MoreSetup.h

	Contains:	Sets up conditions etc for MoreIsBetter.

	Written by:	Pete Gontier

	Copyright:	Copyright (c) 1998-2001 by Apple Computer, Inc., All Rights Reserved.

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	Change History (most recent first):

$Log: MoreSetup.h,v $
Revision 1.14  2002/11/08 22:43:02  eskimo1
A bunch of key changes. We no longer include <Carbon/Carbon.h> in the Mach-O builds, which means that individual MoreIsBetter modules can decide what frameworks they're dependent on. Also changed MoreIsBetter to use the standard C assert mechanism.

Revision 1.13  2001/11/07 15:55:15  eskimo1
Tidy up headers, add CVS logs, update copyright.


        <12>     21/9/01    Quinn   Fix CF framework includes workaround.
        <11>     21/9/01    Quinn   Changes for CWPro7 Mach-O build.
        <10>     15/2/01    Quinn   MoreIsBetter now requires UI 3.4 (pre-release) or later.
         <9>      8/2/01    Quinn   Modern versions of MIB require UI 3.3.2 or higher.
         <8>    22/11/00    Quinn   Switch to "MacErrors.h".
         <7>     22/4/99    Quinn   Add a check for the Universal Interfaces version.  MoreIsBetter
                                    requires Universal Interfaces 3.2 or higher (because many of its
                                    component parts do).
         <6>     2/11/99    PCG     add comments because Andy rightfully pointed out my original
                                    attempts sucked; also, remove some excessive TARGET_CARBON
                                    gymnastics
         <5>     1/22/99    PCG     TARGET_CARBON
         <4>    11/11/98    PCG     fix header
         <3>    11/10/98    PCG     separate change histories
         <2>    10/11/98    Quinn   Convert "MorePrefix.h" to "MoreSetup.h".
         <1>    10/11/98    Quinn   Changed name from "MorePrefix.h" to "MoreSetup.h".

	Start of "MorePrefix.h" change history (most recent first):

         <3>     5/11/98    Quinn   Use MoreAssertQ instead of MoreAssert.
         <2>     7/24/98    PCG	    rid of triplet #includes
         <2>     6/23/98    PCG     add copyright disclaimer stuff
         <1>     6/23/98    PCG     initial checkin
*/

#pragma once

	//
	//	We never want to use old names or locations.
	//	Since these settings must be consistent all the way through
	//	a compilation unit, and since we don't want to silently
	//	change them out from under a developer who uses a prefix
	//	file (C/C++ panel of Target Settings), we simply complain
	//	if they are already set in a way we don't like.
	//

#ifndef OLDROUTINELOCATIONS
	#define OLDROUTINELOCATIONS 0
#elif OLDROUTINELOCATIONS
	#error OLDROUTINELOCATIONS must be FALSE when compiling MoreIsBetter.
#endif

#ifndef OLDROUTINENAMES
	#define OLDROUTINENAMES 0
#elif OLDROUTINENAMES
	#error OLDROUTINENAMES must be FALSE when compiling MoreIsBetter.
#endif

	//
	//	The next statement sets up the various TARGET_xxx 
	//	variables needed later in this file.
	//
	
#include <TargetConditionals.h>

	//
	//  "TargetConditionals.h" on Mac OS X doesn't define 
	//  TARGET_API_MAC_CARBON, which is kinda annoying.  So, 
	//  if we're building for Mach-O and it hasn't been set, 
	//  set it.  All Mach-O builds are inherently Carbon builds.
	//
	//  Note that we *have* to set TARGET_API_MAC_CARBON because 
	//  MoreIsBetter code tests it.  However, we also want to set 
	//  the other values because otherwise GCC won't use its 
	//  precompiled header.  I thought about fixing this by 
	//  including <ConditionalMacros.h> via <CoreServices/CoreServices.h>, 
	//  but the whole goal of using <TargetConditionals.h> was to 
	//  allow MoreIsBetter projects to have no dependencies on 
	//  frameworks beyond System.framework.
	//

#if TARGET_RT_MAC_MACHO
	#define TARGET_API_MAC_OS8 0
	#define TARGET_API_MAC_CARBON 1
	#define TARGET_API_MAC_OSX 1
#endif

	//
	//	We need a master conditional to determine whether to use 
	//	framework notation to reference include files.  There is 
	//  no good way to determine whether the source tree 
	//  is using framework includes or not, so we make a guess and 
	//  say that Mach-O implies framework includes.  However, 
	//  if you're building CFM with framework includes (which is 
	//  possible, although somewhat tricky), you'll have to 
	//  override this.
	//

#if !defined(MORE_FRAMEWORK_INCLUDES)
	#if TARGET_RT_MAC_MACHO
		#define MORE_FRAMEWORK_INCLUDES 1
	#else
		#define MORE_FRAMEWORK_INCLUDES 0
	#endif
#endif

	//
	//	The following works around a problem in <CoreFoundation/CFBase.h>
	//	in Mac OS X.  CF is assuming that the CW Mach-O compiler 
	//	would not use framework includes, which is not the case for the 
	//	CWPro7 and later compilers.  We only do this for the CW build 
    //	because otherwise the presence of the define prevents Project Builder 
    //	from using Carbon's precompiled header.
	//
	
#if MORE_FRAMEWORK_INCLUDES
	#if defined(__MWERKS__)
		#if !defined(__CF_USE_FRAMEWORK_INCLUDES__)
		    #define __CF_USE_FRAMEWORK_INCLUDES__ 1
		#endif
	#endif
#endif

	// 
	//	Previouly we would bring in <MacErrors.h> at this point.
	//	However, that's somewhat counter to the idea behind flat 
	//	includes, so I've eliminated it.
	//

	//
	//	Now that we've included a Mac OS interface file,
	//	we know that the Universal Interfaces environment
	//	is set up.  MoreIsBetter requires Universal Interfaces
	//	3.4 or higher.  Check for it.  Of course, "TargetConditionals.h" 
	//  on Mac OS X doesn't set UNIVERSAL_INTERFACES_VERSION, so 
	//  we only check this if we're not using framework includes.
	//

#if !MORE_FRAMEWORK_INCLUDES
	#if !defined(UNIVERSAL_INTERFACES_VERSION) || UNIVERSAL_INTERFACES_VERSION < 0x0341
		#error MoreIsBetter requires Universal Interfaces 3.4.1 or higher.
	#endif
#endif

	//
	//	We usually want assertions and other debugging code
	//	turned on, but you can turn it all off if you like
	//	by setting MORE_DEBUG to 0.  Also, now that we use 
	//  the standard C assertion mechanism, we default to 
	//  have MORE_DEBUG off if NDEBUG is set.
	//

#if !defined(MORE_DEBUG)
	#if defined(NDEBUG)
		#define MORE_DEBUG 0
	#else
		#define MORE_DEBUG 1
	#endif
#endif

	//
	//  We now use standard C assertions throughout MoreIsBetter.
	//  Previously we would declare two custom assertion macros, 
	//  MoreAssert and MoreAssertQ.
	//
	//	Our assertion macros compile down to nothing if
	//	MORE_DEBUG is not true. MoreAssert produces a
	//	value indicating whether the assertion succeeded
	//	or failed. MoreAssertQ is Quinn's flavor of
	//	MoreAssert which does not produce a value.
	//

#include <assert.h>

	//
	//  Chances are that if you're building CFM then you'd much 
	//  rather have assert triggered DebugStr that abort.  The 
	//  following redefines assert that way.  We don't do this 
	//  for Mach-O because you might be building a Mach-O tool that 
	//  doesn't have access to DebugStr.
	// 
	
#if TARGET_RT_MAC_CFM && !defined(NDEBUG)
	#undef assert
	#define assert(x) ((x) ? ((void) 0) : DebugStr("\pMoreIsBetter assertion failure: " #x))
#endif

	// 
	//  Finally, we define MoreAssertPCG, to accomodate some 
	//  older MoreIsBetter code that tests the result of its 
	//  assertions.  This doesn't fit in with the standard C 
	//  assert model, so I've deprecated the approach.  However
	//  there's a bunch of existing code that works that way 
	//  and reworking it would be likely to generate errors. 
	//  Fortunately, all of the old code that uses this is 
	//  Carbon based, so I don't have to worry about not having 
	//  access to DebugStr.
	// 
	
#if MORE_DEBUG
	#define MoreAssertPCG(x) \
		((x) ? true : (DebugStr ("\pMoreIsBetter assertion failure: " #x), false))
#else
	#define MoreAssertPCG(x) (true)
#endif
