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annotate acinclude/esd.m4 @ 5209:7d64745f1363

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Fixed crash when binary shaders are not available.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 06 Feb 2011 08:46:48 -0800
parents 3da232c5980a
children
rev   line source
3342
3da232c5980a Split acinclude.m4 into its constituent parts for easy upgrading
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1 ##############################################################################
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2 #
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3 # --- esd.m4 ---
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4 #
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5 # Configure paths for ESD
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6 # Manish Singh 98-9-30
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7 # stolen back from Frank Belew
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8 # stolen from Manish Singh
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9 # Shamelessly stolen from Owen Taylor
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10
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11 dnl AM_PATH_ESD([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
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12 dnl Test for ESD, and define ESD_CFLAGS and ESD_LIBS
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13 dnl
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14 AC_DEFUN([AM_PATH_ESD],
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15 [dnl
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16 dnl Get the cflags and libraries from the esd-config script
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17 dnl
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18 AC_ARG_WITH(esd-prefix,[ --with-esd-prefix=PFX Prefix where ESD is installed (optional)],
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19 esd_prefix="$withval", esd_prefix="")
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20 AC_ARG_WITH(esd-exec-prefix,[ --with-esd-exec-prefix=PFX Exec prefix where ESD is installed (optional)],
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21 esd_exec_prefix="$withval", esd_exec_prefix="")
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22 AC_ARG_ENABLE(esdtest, [ --disable-esdtest Do not try to compile and run a test ESD program],
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23 , enable_esdtest=yes)
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24
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25 if test x$esd_exec_prefix != x ; then
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26 esd_args="$esd_args --exec-prefix=$esd_exec_prefix"
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27 if test x${ESD_CONFIG+set} != xset ; then
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28 ESD_CONFIG=$esd_exec_prefix/bin/esd-config
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29 fi
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30 fi
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31 if test x$esd_prefix != x ; then
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32 esd_args="$esd_args --prefix=$esd_prefix"
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33 if test x${ESD_CONFIG+set} != xset ; then
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34 ESD_CONFIG=$esd_prefix/bin/esd-config
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35 fi
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36 fi
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37
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38 AC_PATH_PROG(ESD_CONFIG, esd-config, no)
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39 min_esd_version=ifelse([$1], ,0.2.7,$1)
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40 AC_MSG_CHECKING(for ESD - version >= $min_esd_version)
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41 no_esd=""
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42 if test "$ESD_CONFIG" = "no" ; then
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43 no_esd=yes
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44 else
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45 ESD_CFLAGS=`$ESD_CONFIG $esdconf_args --cflags`
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46 ESD_LIBS=`$ESD_CONFIG $esdconf_args --libs`
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47
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48 esd_major_version=`$ESD_CONFIG $esd_args --version | \
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49 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
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50 esd_minor_version=`$ESD_CONFIG $esd_args --version | \
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51 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
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52 esd_micro_version=`$ESD_CONFIG $esd_config_args --version | \
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53 sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
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54 if test "x$enable_esdtest" = "xyes" ; then
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55 ac_save_CFLAGS="$CFLAGS"
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56 ac_save_LIBS="$LIBS"
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57 CFLAGS="$CFLAGS $ESD_CFLAGS"
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58 LIBS="$LIBS $ESD_LIBS"
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59 dnl
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60 dnl Now check if the installed ESD is sufficiently new. (Also sanity
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61 dnl checks the results of esd-config to some extent
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62 dnl
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63 rm -f conf.esdtest
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64 AC_TRY_RUN([
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65 #include <stdio.h>
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66 #include <stdlib.h>
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67 #include <string.h>
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68 #include <esd.h>
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69
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70 char*
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71 my_strdup (char *str)
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72 {
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73 char *new_str;
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74
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75 if (str)
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76 {
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77 new_str = malloc ((strlen (str) + 1) * sizeof(char));
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78 strcpy (new_str, str);
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79 }
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80 else
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81 new_str = NULL;
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82
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83 return new_str;
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84 }
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85
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86 int main ()
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87 {
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88 int major, minor, micro;
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89 char *tmp_version;
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90
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91 system ("touch conf.esdtest");
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92
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93 /* HP/UX 9 (%@#!) writes to sscanf strings */
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94 tmp_version = my_strdup("$min_esd_version");
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95 if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
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96 printf("%s, bad version string\n", "$min_esd_version");
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97 exit(1);
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98 }
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99
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100 if (($esd_major_version > major) ||
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101 (($esd_major_version == major) && ($esd_minor_version > minor)) ||
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102 (($esd_major_version == major) && ($esd_minor_version == minor) && ($esd_micro_version >= micro)))
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103 {
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104 return 0;
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105 }
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106 else
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107 {
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108 printf("\n*** 'esd-config --version' returned %d.%d.%d, but the minimum version\n", $esd_major_version, $esd_minor_version, $esd_micro_version);
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109 printf("*** of ESD required is %d.%d.%d. If esd-config is correct, then it is\n", major, minor, micro);
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110 printf("*** best to upgrade to the required version.\n");
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111 printf("*** If esd-config was wrong, set the environment variable ESD_CONFIG\n");
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112 printf("*** to point to the correct copy of esd-config, and remove the file\n");
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113 printf("*** config.cache before re-running configure\n");
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114 return 1;
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115 }
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116 }
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117
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118 ],, no_esd=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
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119 CFLAGS="$ac_save_CFLAGS"
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120 LIBS="$ac_save_LIBS"
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121 fi
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122 fi
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123 if test "x$no_esd" = x ; then
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124 AC_MSG_RESULT(yes)
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125 ifelse([$2], , :, [$2])
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126 else
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127 AC_MSG_RESULT(no)
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128 if test "$ESD_CONFIG" = "no" ; then
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129 echo "*** The esd-config script installed by ESD could not be found"
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130 echo "*** If ESD was installed in PREFIX, make sure PREFIX/bin is in"
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131 echo "*** your path, or set the ESD_CONFIG environment variable to the"
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132 echo "*** full path to esd-config."
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133 else
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134 if test -f conf.esdtest ; then
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135 :
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136 else
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137 echo "*** Could not run ESD test program, checking why..."
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138 CFLAGS="$CFLAGS $ESD_CFLAGS"
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139 LIBS="$LIBS $ESD_LIBS"
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140 AC_TRY_LINK([
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141 #include <stdio.h>
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142 #include <esd.h>
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143 ], [ return 0; ],
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144 [ echo "*** The test program compiled, but did not run. This usually means"
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145 echo "*** that the run-time linker is not finding ESD or finding the wrong"
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146 echo "*** version of ESD. If it is not finding ESD, you'll need to set your"
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147 echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
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148 echo "*** to the installed location Also, make sure you have run ldconfig if that"
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149 echo "*** is required on your system"
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150 echo "***"
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151 echo "*** If you have an old version installed, it is best to remove it, although"
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152 echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
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153 [ echo "*** The test program failed to compile or link. See the file config.log for the"
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154 echo "*** exact error that occured. This usually means ESD was incorrectly installed"
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155 echo "*** or that you have moved ESD since it was installed. In the latter case, you"
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156 echo "*** may want to edit the esd-config script: $ESD_CONFIG" ])
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157 CFLAGS="$ac_save_CFLAGS"
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158 LIBS="$ac_save_LIBS"
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159 fi
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160 fi
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161 ESD_CFLAGS=""
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162 ESD_LIBS=""
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163 ifelse([$3], , :, [$3])
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164 fi
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165 AC_SUBST(ESD_CFLAGS)
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166 AC_SUBST(ESD_LIBS)
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167 rm -f conf.esdtest
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168 ])