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annotate Xcode/SDL/pkg-support/resources/ReadMe.txt @ 5066:3afb71c202b2

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Fixed bug #945 The configure script was breaking the substitutions into multiple fragments, breaking them across the substitution for the build rules. This of course totally hosed the process. I switched to using a more modern usage of AC_OUTPUT and added a post-process step that appends the build rules to the Makefile.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 21 Jan 2011 12:43:25 -0800
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1 The Simple DirectMedia Layer (SDL for short) is a cross-platform
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2 library designed to make it easy to write multi-media software,
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3 such as games and emulators.
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4
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5 The Simple DirectMedia Layer library source code is available from:
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6 http://www.libsdl.org/
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7
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8 This library is distributed under the terms of the GNU LGPL license:
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9 http://www.gnu.org/copyleft/lesser.html
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10
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11
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12 This packages contains the SDL.framework for OS X.
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13 Conforming with Apple guidelines, this framework
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14 contains both the SDL runtime component and development header files.
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15
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16
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17 To Install:
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18 Copy the SDL.framework to /Library/Frameworks
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19
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20 You may alternatively install it in <Your home directory>/Library/Frameworks
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21 if your access privileges are not high enough.
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22 (Be aware that the Xcode templates we provide in the SDL Developer Extras
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23 package may require some adjustment for your system if you do this.)
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24
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25
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26 Known Issues:
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27 ???
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28
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29
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30 Additional References:
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31
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32 - Screencast tutorials for getting started with OpenSceneGraph/Mac OS X are
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33 available at:
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34 http://www.openscenegraph.org/projects/osg/wiki/Support/Tutorials/MacOSXTips
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35 Though these are OpenSceneGraph centric, the same exact concepts apply to
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36 SDL, thus the videos are recommended for everybody getting started with
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37 developing on Mac OS X. (You can skim over the PlugIns stuff since SDL
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38 doesn't have any PlugIns to worry about.)
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39
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40
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41
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42 (Partial) History of PB/Xcode projects:
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43 2009-09-21 - Added 64-bit for Snow Leopard. 10.4 is the new minimum requirement.
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44 Removed 'no X11' targets as
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45 new codebase will assume you have them. Also removed specific #defines
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46 for X11, but needed to add search path to /usr/X11R6/include
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47
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48 2007-12-31 - Enabled strip -x in the Xcode settings and removed it
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49 from the Build DMG script.
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50 Added a per-arch setting for the Deployment targets for OTHER_LDFLAGS_ppc
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51 to re-enable prebinding.
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52 Need to remember to copy these changes to the SDL satellite projects.
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53
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54 2007-12-30 - Updated documentation to reflect new installation paths for
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55 Xcode project templates under Leopard (Xcode 2.5/3.0).
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56
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57 ????-??-?? - Added extra targets for building formal releases against the
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58 10.2 SDK so we don't have to keep modifying the settings.
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59
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60 ????-??-?? - Added fancy DMG (background logo) support with automation.
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61
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62 2006-05-09 - Added shell script phase to deal with new SDL_config.h
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63 behavior. Encountered what seems to be an Xcode bug with
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64 multiple files of the same name, even when conditional compiling
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65 is controlled by custom #defines (SDL_sysloadso.c). Multiple or
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66 undefined symbols are the result of this.
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67 Recommended that macosx/SDL_sysloadso.c be modified to directly
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68 include the dlopen version of the file via #ifdef's so only
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69 one version needs to exist. Filed a formal bug report with Apple
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70 about this (4542369).
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71
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72 2006-03-22 - gcc 4 visibility features have been added to the code base so I
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73 enabled the switch in Xcode to take advantage of it. Be aware that only
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74 our x86 builds will be exposed to this feature as we still build ppc
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75 with gcc 3.3.
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76
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77 Christian Walther has sent me some great feedback on things that are
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78 broken, so I have made some of these fixes. Among the issues are
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79 compatibility and current library versions are not set to 1 (breaks
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80 backwards compatibility), documentation errors, resource copying
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81 location problems for the SDLTest apps, missing HAVE_OPENGL and
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82 OpenGL.framework linking in testgl.
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83 (Eric Wing)
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84
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85 2006-03-17 - Because the X11 headers are not installed by default with Xcode,
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86 we decided to offer two variants of the same targets (one with X11 stuff
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87 and one without). By default, since the X11 stuff does not necessarily
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88 conflict with the native stuff, we build the libraries with the X11 stuff
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89 so advanced developers can access it by default. However, in the case
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90 that a developer did not install X11 (or just doesn't want the extra bloat),
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91 the user may directly select those targets and build those instead.
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92
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93 Once again, we are attempting to remove the exported symbols file. If
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94 I recall correctly, the clashing symbol problems we got were related
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95 to the CD-ROM code which was formerly in C++. Now that the C++ code
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96 has been purged, we are speculating that we might be able to remove
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97 the exports file safely. The long term solution is to utilize gcc 4's
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98 visibility features.
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99
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100 For the developer extras package, I changed the package format
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101 from a .pkg based installer to a .dmg to avoid requiring
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102 administrator/root to access contents, for better
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103 transparency, and to allow users to more easily control which components
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104 they actually want to install.
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105 I also made changes and updates to the PB/Xcode project templates (see Developer ReadMe).
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106 (Eric Wing)
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107
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108 2006-03-07 - The entire code base has been reorganized and platform specific
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109 defines have been pushed into header files (SDL_config_*.h). This means
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110 that defines that previously had to be defined in the Xcode projects can
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111 be removed (which I have started doing). Furthermore, it appears that the
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112 MMX/SSE code has been rewritten and refactored so it now compiles without
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113 nasm and without making us do strange things to support OS X. However, this
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114 Xcode project still employs architecture specific build options in order to
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115 achieve the mandated 10.2 compatibility. As a result of the code base changes,
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116 there are new public headers. But also as a result of these changes, there are
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117 also new headers that qualify as "PrivateHeaders". Private Headers are headers
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118 that must be exported because a public header includes them, but users shouldn't
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119 directly invoke these. SDL_config_macosx.h and SDL_config_dreamcast.h are
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120 examples of this. We have considered marking these headers as Private, but it
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121 requires that the public headers invoke them via framework conventions, i.e.
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122 #include <FrameworkName/Header.h>
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123 e.g.
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124 #include <SDL/SDL_config_macosx.h>
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125 and not
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126 #include "SDL_config_macosx.h"
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127 However this imposes the restriction that non-framework distributions must
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128 place their headers in a directory called SDL/ (and not SDL11/ like FreeBSD).
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129 Currently, I do not believe this would pose a problem for any of the current
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130 distributions (Fink, DarwinPorts). Or alternatively, users could be
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131 expected/forced to also include the header path:
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132 -I/Library/Frameworks/SDL.framework/PrivateHeaders,
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133 but most people would probably not read the documentation on this.
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134 But currently, we have decided to be conservative and have opted not to
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135 use the PrivateHeaders feature.
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136 (Eric Wing)
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137
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138 2006-01-31 - Updates to build Universal Binaries while retaining 10.2 compatibility.
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139 We were unable to get MMX/SSE support enabled. It is believed that a rewrite of
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140 the assembly code will be necessary to make it position independent and not
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141 require nasm. Altivec has finally been enabled for PPC. (Eric Wing)
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142
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143 2005-09-?? - Had to add back the exports file because it was causing build problems
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144 for some cases. (Eric Wing)
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145
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146 2005-08-21 - First entry in history. Updated for SDL 1.2.9 and Xcode 2.1. Getting
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147 ready for Universal Binaries. Removed the .pkg system for .dmg for due to problems
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148 with broken packages in the past several SDL point releases. Removed usage of SDL
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149 exports file because it has become another point of failure. Introduced new documentation
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150 about SDLMain and how to compile in an devel-lite section of the SDL.dmg. (Eric Wing)
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151
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152 Before history:
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153 SDL 1.2.6? to 1.2.8
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154 Started updating Project Builder projects to Xcode for Panther and Tiger. Also removed
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155 the system that split the single framework into separate runtime and headers frameworks.
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156 This is against Apple conventions and causes problems on multiuser systems.
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157 We now distribute a single framework.
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158 The .pkg system has repeatedly been broken with every new release of OS X.
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159 With 1.2.8, started migrating stuff to .dmg based system to simplify distribution process.
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160 Tried updating the exports file and Perl script generation system for changing syntax. (Eric Wing)
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161
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162 Pre-SDL 1.2.6
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163 Created Project Builder projects for SDL and .pkg based distribution system. (Darrell Walisser)
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164
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165
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166
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167
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168
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169
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170
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171