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annotate src/SDL_loadso.c @ 1135:cf6133247d34

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Mac Classic and CodeWarrior patches. --ryan. From: =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb@algonet.se> Subject: Re: [SDL] Updated Mac patch Date: Tue, 6 Sep 2005 15:21:27 +0200 To: A list for developers using the SDL library <sdl@libsdl.org> Earlier, I wrote: > Updated the previous Mac patch to disable Carbon by default. > Also "fixed" the SDL.spec again, so that it builds on Darwin. > > http://www.algonet.se/~afb/SDL-1.2.9-mac.patch > Also applied fine to SDL12 CVS, when I tried it. > > Haven't completed any new packaging or projects for Xcode/PB, > but it seems to build and install fine here (in development). Tested the new patch to build with old CodeWarrior and MPW, and it seems it needed some hacks with those old headers... Just in case you want to support the archeological versions - here is a small add-on to the above patch, to fix those... http://www.algonet.se/~afb/SDL-1.2.9-classic.patch I couldn't get the old CW5 projects to build without a few modifications - such as deleting the stray old header in: "CWprojects/Support/Carbon/Include/ConditionalMacros.h" ? But I updated both projects to CW6 too and built for Carbon, and it ran all of the Mac test projects without any problems. The MPW file seems to have compiled, with a small order change. As long as you're still shipping the CWProjects and MPWmake with the download, they should probably be updated/fixed ? (another "solution" would of course be to just delete them) I'll post my new projects along with the new Xcode projects later on, along with XML exports of the various .mcp files. (CW5 builds for Classic / "PPC", and CW6 builds for Carbon) It'll be packaged as a part of the next SpriteWorld X release... http://spriteworldx.sourceforge.net/ [Classic/Carbon/Win/X11] --anders
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 08 Sep 2005 06:34:28 +0000
parents 0c3e00cc9580
children 51a8702d8ecd
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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29 /* System dependent library loading routines */
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30
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31 #include <stdio.h>
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32 #if defined(USE_DLOPEN)
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33 # include <dlfcn.h>
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34 #elif defined(WIN32)
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35 # include <windows.h>
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36 #elif defined(__BEOS__)
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37 # include <be/kernel/image.h>
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38 #elif defined(macintosh)
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39 # include <string.h>
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40 #define OLDP2C 1
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41 # include <Strings.h>
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42 # include <CodeFragments.h>
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43 # include <Errors.h>
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44 #elif defined(__MINT__) && defined(ENABLE_LDG)
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45 # include <gem.h>
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46 # include <ldg.h>
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47 #else
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48 /*#error Unsupported dynamic link environment*/
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49 #endif /* system type */
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50
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51 #include "SDL_types.h"
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52 #include "SDL_error.h"
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53 #include "SDL_loadso.h"
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54
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55 void *SDL_LoadObject(const char *sofile)
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56 {
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57 void *handle = NULL;
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58 const char *loaderror = "SDL_LoadObject() not implemented";
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59 #if defined(USE_DLOPEN)
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60 /* * */
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61 handle = dlopen(sofile, RTLD_NOW);
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62 loaderror = (char *)dlerror();
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63 #elif defined(WIN32)
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64 /* * */
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65 char errbuf[512];
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66
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67 handle = (void *)LoadLibrary(sofile);
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68
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69 /* Generate an error message if all loads failed */
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70 if ( handle == NULL ) {
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71 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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72 FORMAT_MESSAGE_FROM_SYSTEM),
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73 NULL, GetLastError(),
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74 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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75 errbuf, SDL_TABLESIZE(errbuf), NULL);
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76 loaderror = errbuf;
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77 }
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78 #elif defined(__BEOS__)
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79 /* * */
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80 image_id library_id;
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81
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82 library_id = load_add_on(sofile);
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83 if ( library_id == B_ERROR ) {
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84 loaderror = "BeOS error";
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85 } else {
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86 handle = (void *)(library_id);
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87 }
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88 #elif defined(macintosh)
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89 /* * */
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90 CFragConnectionID library_id;
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91 Ptr mainAddr;
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92 Str255 errName;
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93 OSErr error;
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94 char psofile[512];
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95
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96 strncpy(psofile, sofile, SDL_TABLESIZE(psofile));
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97 psofile[SDL_TABLESIZE(psofile)-1] = '\0';
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98 error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,
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99 kLoadCFrag, &library_id, &mainAddr, errName);
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100 switch (error) {
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101 case noErr:
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102 loaderror = NULL;
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103 break;
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104 case cfragNoLibraryErr:
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105 loaderror = "Library not found";
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106 break;
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107 case cfragUnresolvedErr:
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108 loaderror = "Unabled to resolve symbols";
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109 break;
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110 case cfragNoPrivateMemErr:
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111 case cfragNoClientMemErr:
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112 loaderror = "Out of memory";
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113 break;
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114 default:
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115 loaderror = "Unknown Code Fragment Manager error";
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116 break;
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117 }
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118 if ( loaderror == NULL ) {
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119 handle = (void *)(library_id);
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120 }
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121 #elif defined(__MINT__) && defined(ENABLE_LDG)
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122 /* * */
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123 handle = (void *)ldg_open((char *)sofile, ldg_global);
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124 #endif /* system type */
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125
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126 if ( handle == NULL ) {
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127 SDL_SetError("Failed loading %s: %s", sofile, loaderror);
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128 }
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129 return(handle);
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130 }
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131
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132 void *SDL_LoadFunction(void *handle, const char *name)
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133 {
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134 void *symbol = NULL;
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135 const char *loaderror = "SDL_LoadFunction not implemented";
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136 #if defined(USE_DLOPEN)
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137 /* * */
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138 symbol = dlsym(handle, name);
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139 if ( symbol == NULL ) {
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140 loaderror = (char *)dlerror();
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141 }
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142 #elif defined(WIN32)
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143 /* * */
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144 char errbuf[512];
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145
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146 symbol = (void *)GetProcAddress((HMODULE)handle, name);
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147 if ( symbol == NULL ) {
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148 FormatMessage((FORMAT_MESSAGE_IGNORE_INSERTS |
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149 FORMAT_MESSAGE_FROM_SYSTEM),
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150 NULL, GetLastError(),
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151 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
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152 errbuf, SDL_TABLESIZE(errbuf), NULL);
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153 loaderror = errbuf;
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154 }
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155 #elif defined(__BEOS__)
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156 /* * */
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157 image_id library_id = (image_id)handle;
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158 if ( get_image_symbol(library_id,
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159 name, B_SYMBOL_TYPE_TEXT, &symbol) != B_NO_ERROR ) {
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160 loaderror = "Symbol not found";
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161 }
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162 #elif defined(macintosh)
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163 /* * */
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164 CFragSymbolClass class;
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165 CFragConnectionID library_id = (CFragConnectionID)handle;
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166 char pname[512];
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167
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168 strncpy(pname, name, SDL_TABLESIZE(pname));
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169 pname[SDL_TABLESIZE(pname)-1] = '\0';
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170 if ( FindSymbol(library_id, C2PStr(pname),
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171 (char **)&symbol, &class) != noErr ) {
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172 loaderror = "Symbol not found";
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173 }
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174 #elif defined(__MINT__) && defined(ENABLE_LDG)
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175 /* * */
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176 symbol = (void *)ldg_find((char *)name, (LDG *)handle);
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177 #endif /* system type */
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178
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179 if ( symbol == NULL ) {
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180 SDL_SetError("Failed loading %s: %s", name, loaderror);
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181 }
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182 return(symbol);
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183 }
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184
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185 void SDL_UnloadObject(void *handle)
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186 {
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187 #if defined(__BEOS__)
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188 image_id library_id;
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189 #elif defined(macintosh)
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190 CFragConnectionID library_id;
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191 #endif
294
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192 if ( handle == NULL ) {
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193 return;
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194 }
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195 #if defined(USE_DLOPEN)
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196 /* * */
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197 dlclose(handle);
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198 #elif defined(WIN32)
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199 /* * */
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200 FreeLibrary((HMODULE)handle);
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201 #elif defined(__BEOS__)
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202 /* * */
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203 library_id = (image_id)handle;
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204 unload_add_on(library_id);
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205 #elif defined(macintosh)
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206 /* * */
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207 library_id = (CFragConnectionID)handle;
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208 CloseConnection(&library_id);
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209 #elif defined(__MINT__) && defined(ENABLE_LDG)
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210 /* * */
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211 ldg_close((LDG *)handle, ldg_global);
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212 #endif /* system type */
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213 }