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1 # ===========================================================================
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2 # http://www.gnu.org/software/autoconf-archive/ax_path_generic.html
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3 # ===========================================================================
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4 #
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5 # SYNOPSIS
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6 #
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7 # AX_PATH_GENERIC(LIBRARY,[MINIMUM-VERSION,[SED-EXPR-EXTRACTOR]],[ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],[CONFIG-SCRIPTS],[CFLAGS-ARG],[LIBS-ARG])
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8 #
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9 # DESCRIPTION
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10 #
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11 # Runs the LIBRARY-config script and defines LIBRARY_CFLAGS and
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12 # LIBRARY_LIBS unless the user had predefined them in the environment.
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13 #
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14 # The script must support `--cflags' and `--libs' args. If MINIMUM-VERSION
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15 # is specified, the script must also support the `--version' arg. If the
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16 # `--with-library-[exec-]prefix' arguments to ./configure are given, it
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17 # must also support `--prefix' and `--exec-prefix'. Prefereable use
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18 # CONFIG-SCRIPTS as config script, CFLAGS-ARG instead of `--cflags` and
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19 # LIBS-ARG instead of `--libs`, if given.
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20 #
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21 # The SED-EXPR-EXTRACTOR parameter representes the expression used in sed
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22 # to extract the version number. Use it if your 'foo-config --version'
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23 # dumps something like 'Foo library v1.0.0 (alfa)' instead of '1.0.0'.
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24 #
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25 # The macro respects LIBRARY_CONFIG, LIBRARY_CFLAGS and LIBRARY_LIBS
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26 # variables. If the first one is defined, it specifies the name of the
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27 # config script to use. If the latter two are defined, the script is not
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28 # ran at all and their values are used instead (if only one of them is
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29 # defined, the empty value of the remaining one is still used).
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30 #
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31 # Example:
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32 #
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33 # AX_PATH_GENERIC(Foo, 1.0.0)
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34 #
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35 # would run `foo-config --version' and check that it is at least 1.0.0, if
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36 # successful the following variables would be defined and substituted:
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37 #
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38 # FOO_CFLAGS to `foo-config --cflags`
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39 # FOO_LIBS to `foo-config --libs`
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40 #
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41 # Example:
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42 #
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43 # AX_PATH_GENERIC([Bar],,,[
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44 # AC_MSG_ERROR([Cannot find Bar library])
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45 # ])
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46 #
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47 # would check for bar-config program, defining and substituting the
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48 # following variables:
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49 #
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50 # BAR_CFLAGS to `bar-config --cflags`
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51 # BAR_LIBS to `bar-config --libs`
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52 #
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53 # Example:
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54 #
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55 # ./configure BAZ_LIBS=/usr/lib/libbaz.a
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56 #
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57 # would link with a static version of baz library even if `baz-config
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58 # --libs` returns just "-lbaz" that would normally result in using the
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59 # shared library.
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60 #
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61 # This macro is a rearranged version of AC_PATH_GENERIC from Angus Lees.
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62 #
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63 # LICENSE
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64 #
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65 # Copyright (c) 2009 Francesco Salvestrini <salvestrini@users.sourceforge.net>
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66 #
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67 # Copying and distribution of this file, with or without modification, are
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68 # permitted in any medium without royalty provided the copyright notice
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69 # and this notice are preserved. This file is offered as-is, without any
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70 # warranty.
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71
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72 #serial 11
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73
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74 AU_ALIAS([AC_PATH_GENERIC], [AX_PATH_GENERIC])
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75 AC_DEFUN([AX_PATH_GENERIC],[
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76 AC_REQUIRE([AC_PROG_SED])
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77
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78 dnl we're going to need uppercase and lowercase versions of the
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79 dnl string `LIBRARY'
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80 pushdef([UP], translit([$1], [a-z], [A-Z]))dnl
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81 pushdef([DOWN], translit([$1], [A-Z], [a-z]))dnl
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82
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83 AC_ARG_WITH(DOWN-prefix,[AS_HELP_STRING([--with-]DOWN[-prefix=PREFIX], [Prefix where $1 is installed (optional)])],
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84 DOWN[]_config_prefix="$withval", DOWN[]_config_prefix="")
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85 AC_ARG_WITH(DOWN-exec-prefix,[AS_HELP_STRING([--with-]DOWN[-exec-prefix=EPREFIX], [Exec prefix where $1 is installed (optional)])],
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86 DOWN[]_config_exec_prefix="$withval", DOWN[]_config_exec_prefix="")
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87
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88 AC_ARG_VAR(UP[]_CONFIG, [config script used for $1])
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89 AC_ARG_VAR(UP[]_CFLAGS, [CFLAGS used for $1])
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90 AC_ARG_VAR(UP[]_LIBS, [LIBS used for $1])
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91
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92 AS_IF([test x$UP[]_CFLAGS != x -o x$UP[]_LIBS != x],[
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93 dnl Don't run config script at all, use user-provided values instead.
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94 AC_SUBST(UP[]_CFLAGS)
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95 AC_SUBST(UP[]_LIBS)
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96 :
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97 $4
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98 ],[
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99 AS_IF([test x$DOWN[]_config_exec_prefix != x],[
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100 DOWN[]_config_args="$DOWN[]_config_args --exec-prefix=$DOWN[]_config_exec_prefix"
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101 AS_IF([test x${UP[]_CONFIG+set} != xset],[
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102 UP[]_CONFIG=$DOWN[]_config_exec_prefix/bin/DOWN-config
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103 ])
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104 ])
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105 AS_IF([test x$DOWN[]_config_prefix != x],[
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106 DOWN[]_config_args="$DOWN[]_config_args --prefix=$DOWN[]_config_prefix"
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107 AS_IF([test x${UP[]_CONFIG+set} != xset],[
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108 UP[]_CONFIG=$DOWN[]_config_prefix/bin/DOWN-config
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109 ])
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110 ])
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111
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112 AC_PATH_PROGS(UP[]_CONFIG,[$6 DOWN-config],[no])
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113 AS_IF([test "$UP[]_CONFIG" = "no"],[
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114 :
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115 $5
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116 ],[
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117 dnl Get the CFLAGS from LIBRARY-config script
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118 AS_IF([test x"$7" = x],[
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119 UP[]_CFLAGS="`$UP[]_CONFIG $DOWN[]_config_args --cflags`"
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120 ],[
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121 UP[]_CFLAGS="`$UP[]_CONFIG $DOWN[]_config_args $7`"
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122 ])
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123
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124 dnl Get the LIBS from LIBRARY-config script
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125 AS_IF([test x"$8" = x],[
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126 UP[]_LIBS="`$UP[]_CONFIG $DOWN[]_config_args --libs`"
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127 ],[
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128 UP[]_LIBS="`$UP[]_CONFIG $DOWN[]_config_args $8`"
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129 ])
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130
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131 AS_IF([test x"$2" != x],[
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132 dnl Check for provided library version
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133 AS_IF([test x"$3" != x],[
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134 dnl Use provided sed expression
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135 DOWN[]_version="`$UP[]_CONFIG $DOWN[]_config_args --version | $SED -e $3`"
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136 ],[
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137 DOWN[]_version="`$UP[]_CONFIG $DOWN[]_config_args --version | $SED -e 's/^\ *\(.*\)\ *$/\1/'`"
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138 ])
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139
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140 AC_MSG_CHECKING([for $1 ($DOWN[]_version) >= $2])
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141 AX_COMPARE_VERSION($DOWN[]_version,[ge],[$2],[
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142 AC_MSG_RESULT([yes])
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143
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144 AC_SUBST(UP[]_CFLAGS)
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145 AC_SUBST(UP[]_LIBS)
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146 :
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147 $4
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148 ],[
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149 AC_MSG_RESULT([no])
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150 :
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151 $5
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152 ])
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153 ],[
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154 AC_SUBST(UP[]_CFLAGS)
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155 AC_SUBST(UP[]_LIBS)
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156 :
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157 $4
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158 ])
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159 ])
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160 ])
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161
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162 popdef([UP])
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163 popdef([DOWN])
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164 ])
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