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Rev | Author | Line No. | Line |
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5131 | clevermous | 1 | # Configure paths for SDL |
2 | # Sam Lantinga 9/21/99 |
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3 | # stolen from Manish Singh |
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4 | # stolen back from Frank Belew |
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5 | # stolen from Manish Singh |
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6 | # Shamelessly stolen from Owen Taylor |
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7 | |||
8 | dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) |
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9 | dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS |
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10 | dnl |
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11 | AC_DEFUN(AM_PATH_SDL, |
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12 | [dnl |
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13 | dnl Get the cflags and libraries from the sdl-config script |
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14 | dnl |
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15 | AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)], |
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16 | sdl_prefix="$withval", sdl_prefix="") |
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17 | AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)], |
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18 | sdl_exec_prefix="$withval", sdl_exec_prefix="") |
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19 | AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program], |
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20 | , enable_sdltest=yes) |
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21 | |||
22 | if test x$sdl_exec_prefix != x ; then |
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23 | sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix" |
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24 | if test x${SDL_CONFIG+set} != xset ; then |
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25 | SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config |
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26 | fi |
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27 | fi |
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28 | if test x$sdl_prefix != x ; then |
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29 | sdl_args="$sdl_args --prefix=$sdl_prefix" |
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30 | if test x${SDL_CONFIG+set} != xset ; then |
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31 | SDL_CONFIG=$sdl_prefix/bin/sdl-config |
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32 | fi |
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33 | fi |
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34 | |||
35 | AC_PATH_PROG(SDL_CONFIG, sdl-config, no) |
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36 | min_sdl_version=ifelse([$1], ,0.11.0,$1) |
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37 | AC_MSG_CHECKING(for SDL - version >= $min_sdl_version) |
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38 | no_sdl="" |
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39 | if test "$SDL_CONFIG" = "no" ; then |
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40 | no_sdl=yes |
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41 | else |
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42 | SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags` |
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43 | SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs` |
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44 | |||
45 | sdl_major_version=`$SDL_CONFIG $sdl_args --version | \ |
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46 | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` |
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47 | sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \ |
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48 | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` |
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49 | sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \ |
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50 | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` |
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51 | if test "x$enable_sdltest" = "xyes" ; then |
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52 | ac_save_CFLAGS="$CFLAGS" |
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53 | ac_save_LIBS="$LIBS" |
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54 | CFLAGS="$CFLAGS $SDL_CFLAGS" |
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55 | LIBS="$LIBS $SDL_LIBS" |
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56 | dnl |
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57 | dnl Now check if the installed SDL is sufficiently new. (Also sanity |
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58 | dnl checks the results of sdl-config to some extent |
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59 | dnl |
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60 | rm -f conf.sdltest |
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61 | AC_TRY_RUN([ |
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62 | #include |
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63 | #include |
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64 | #include |
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65 | #include "SDL.h" |
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66 | |||
67 | char* |
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68 | my_strdup (char *str) |
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69 | { |
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70 | char *new_str; |
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71 | |||
72 | if (str) |
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73 | { |
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74 | new_str = malloc ((strlen (str) + 1) * sizeof(char)); |
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75 | strcpy (new_str, str); |
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76 | } |
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77 | else |
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78 | new_str = NULL; |
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79 | |||
80 | return new_str; |
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81 | } |
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82 | |||
83 | int main () |
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84 | { |
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85 | int major, minor, micro; |
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86 | char *tmp_version; |
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87 | |||
88 | system ("touch conf.sdltest"); |
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89 | |||
90 | /* HP/UX 9 (%@#!) writes to sscanf strings */ |
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91 | tmp_version = my_strdup("$min_sdl_version"); |
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92 | if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { |
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93 | printf("%s, bad version string\n", "$min_sdl_version"); |
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94 | exit(1); |
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95 | } |
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96 | |||
97 | if (($sdl_major_version > major) || |
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98 | (($sdl_major_version == major) && ($sdl_minor_version > minor)) || |
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99 | (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro))) |
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100 | { |
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101 | return 0; |
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102 | } |
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103 | else |
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104 | { |
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105 | printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version); |
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106 | printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro); |
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107 | printf("*** best to upgrade to the required version.\n"); |
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108 | printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n"); |
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109 | printf("*** to point to the correct copy of sdl-config, and remove the file\n"); |
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110 | printf("*** config.cache before re-running configure\n"); |
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111 | return 1; |
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112 | } |
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113 | } |
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114 | |||
115 | ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) |
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116 | CFLAGS="$ac_save_CFLAGS" |
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117 | LIBS="$ac_save_LIBS" |
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118 | fi |
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119 | fi |
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120 | if test "x$no_sdl" = x ; then |
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121 | AC_MSG_RESULT(yes) |
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122 | ifelse([$2], , :, [$2]) |
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123 | else |
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124 | AC_MSG_RESULT(no) |
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125 | if test "$SDL_CONFIG" = "no" ; then |
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126 | echo "*** The sdl-config script installed by SDL could not be found" |
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127 | echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in" |
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128 | echo "*** your path, or set the SDL_CONFIG environment variable to the" |
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129 | echo "*** full path to sdl-config." |
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130 | else |
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131 | if test -f conf.sdltest ; then |
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132 | : |
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133 | else |
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134 | echo "*** Could not run SDL test program, checking why..." |
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135 | CFLAGS="$CFLAGS $SDL_CFLAGS" |
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136 | LIBS="$LIBS $SDL_LIBS" |
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137 | AC_TRY_LINK([ |
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138 | #include |
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139 | #include "SDL.h" |
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140 | ], [ return 0; ], |
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141 | [ echo "*** The test program compiled, but did not run. This usually means" |
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142 | echo "*** that the run-time linker is not finding SDL or finding the wrong" |
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143 | echo "*** version of SDL. If it is not finding SDL, you'll need to set your" |
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144 | echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" |
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145 | echo "*** to the installed location Also, make sure you have run ldconfig if that" |
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146 | echo "*** is required on your system" |
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147 | echo "***" |
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148 | echo "*** If you have an old version installed, it is best to remove it, although" |
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149 | echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], |
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150 | [ echo "*** The test program failed to compile or link. See the file config.log for the" |
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151 | echo "*** exact error that occured. This usually means SDL was incorrectly installed" |
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152 | echo "*** or that you have moved SDL since it was installed. In the latter case, you" |
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153 | echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ]) |
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154 | CFLAGS="$ac_save_CFLAGS" |
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155 | LIBS="$ac_save_LIBS" |
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156 | fi |
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157 | fi |
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158 | SDL_CFLAGS="" |
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159 | SDL_LIBS="" |
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160 | ifelse([$3], , :, [$3]) |
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161 | fi |
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162 | AC_SUBST(SDL_CFLAGS) |
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163 | AC_SUBST(SDL_LIBS) |
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164 | rm -f conf.sdltest |
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165 | ]) |