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1 dnl -*- Autoconf -*-
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2 ##### http://autoconf-archive.cryp.to/ax_lib_mysql.html
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3 #
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4 # SYNOPSIS
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5 #
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6 # AX_LIB_MYSQL([MINIMUM-VERSION])
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7 #
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8 # DESCRIPTION
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9 #
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10 # This macro provides tests of availability of MySQL 'libmysqlclient'
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11 # library of particular version or newer.
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12 #
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13 # AX_LIB_MYSQL macro takes only one argument which is optional.
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14 # If there is no required version passed, then macro does not run
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15 # version test.
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16 #
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17 # The --with-mysql option takes one of three possible values:
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18 #
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19 # no - do not check for MySQL client library
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20 #
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21 # yes - do check for MySQL library in standard locations
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22 # (mysql_config should be in the PATH)
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23 #
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24 # path - complete path to mysql_config utility, use this option if
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25 # mysql_config can't be found in the PATH
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26 #
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27 # This macro calls:
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28 #
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29 # AC_SUBST([MYSQL_CFLAGS])
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30 # AC_SUBST([MYSQL_CPPFLAGS])
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31 # AC_SUBST([MYSQL_LDFLAGS])
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32 # AC_SUBST([MYSQL_VERSION])
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33 #
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34 # And sets:
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35 #
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36 # HAVE_MYSQL
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37 #
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38 # LAST MODIFICATION
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39 #
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40 # 2006-07-16
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41 # 2007-01-09 MKS: mysql_config --cflags may set gcc -fomit-frame-pointers,
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42 # which prevents gdb from displaying stack traces.
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43 # Changed mysql_config --cflags to mysql_config --include
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44 # 2009-09-23 AJB: Checking for availability of both, include files and
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45 # library files.
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46 # 2010-06-14 MKS: Added MYSQL_CPPFLAGS
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47 # 2011-08-01 MKS: Made test constructs more portable
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48 #
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49 # COPYLEFT
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50 #
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51 # Copyright (c) 2006 Mateusz Loskot <mateusz@loskot.net>
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52 #
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53 # Copying and distribution of this file, with or without
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54 # modification, are permitted in any medium without royalty provided
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55 # the copyright notice and this notice are preserved.
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56
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57 AC_DEFUN([AX_LIB_MYSQL],
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58 [
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59 MYSQL_CFLAGS=""
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60 MYSQL_CPPFLAGS=""
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61 MYSQL_LDFLAGS=""
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62 MYSQL_CONFIG=""
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63 MYSQL_VERSION=""
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64
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65 AC_ARG_WITH([mysql],
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66 [AS_HELP_STRING([--with-mysql@<:@=ARG@:>@],
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67 [use MySQL client library @<:@default=yes@:>@, optionally specify path to mysql_config])],
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68 [
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69 AS_IF([test "x${withval}" = "xno"],
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70 [want_mysql="no"],
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71 [test "x${withval}" = "xyes"],
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72 [want_mysql="yes"],
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73 [
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74 want_mysql="yes"
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75 MYSQL_CONFIG="${withval}"
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76 ])
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77 ],
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78 [want_mysql="yes"])
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79
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80 dnl
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81 dnl Check MySQL libraries (libmysqlclient)
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82 dnl
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83
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84 AS_IF([test "x${want_mysql}" = "xyes"],
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85 [
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86 AS_IF([test -z "${MYSQL_CONFIG}" -o test],
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87 [AC_PATH_PROG([MYSQL_CONFIG], [mysql_config], [no])])
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88
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89 AS_IF([test "x${MYSQL_CONFIG}" != "xno"],
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90 [
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91 AC_MSG_CHECKING([for MySQL libraries])
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92
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93 MYSQL_CFLAGS="`${MYSQL_CONFIG} --cflags`"
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94 MYSQL_CPPFLAGS="`${MYSQL_CONFIG} --include`"
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95 MYSQL_LDFLAGS="`${MYSQL_CONFIG} --libs`"
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96
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97 MYSQL_VERSION=`${MYSQL_CONFIG} --version`
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98
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99 dnl It isn't enough to just test for mysql_config as Fedora
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100 dnl provides it in the mysql RPM even though mysql-devel may
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101 dnl not be installed
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102
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103 EMBCPPFLAGS="${CPPFLAGS}"
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104 EMBLDFLAGS="${LDFLAGS}"
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105
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106 CPPFLAGS="${MYSQL_CPPFLAGS} ${EMBCPPFLAGS}"
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107 LDFLAGS="${MYSQL_LDFLAGS} ${EMBLDFLAGS}"
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108
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109 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
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110 #include "mysql.h"]],
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111 [[mysql_info(NULL)]])],
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112 [havemysql="yes"],
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113 [havemysql="no"])
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114
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115 CPPFLAGS="${EMBCPPFLAGS}"
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116 LDFLAGS="${EMBLDFLAGS}"
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117
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118 AS_IF([test "x${havemysql}" = "xyes"],
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119 [
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120 AC_DEFINE([HAVE_MYSQL], [1],
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121 [Define to 1 if MySQL libraries are available.])
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122 found_mysql="yes"
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123 AC_MSG_RESULT([yes])
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124 ],
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125 [
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126 MYSQL_CFLAGS=""
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127 MYSQL_CPPFLAGS=""
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128 MYSQL_LDFLAGS=""
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129 found_mysql="no"
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130 AC_MSG_RESULT([no])
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131 ])
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132 ],
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133 [
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134 found_mysql="no"
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135 ])
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136 ])
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137
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138 dnl
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139 dnl Check if required version of MySQL is available
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140 dnl
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141
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142 mysql_version_req=ifelse([$1], [], [], [$1])
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143
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144 AS_IF([test "x${found_mysql}" = "xyes" -a -n "${mysql_version_req}"],
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145 [
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146 AC_MSG_CHECKING([if MySQL version is >= ${mysql_version_req}])
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147
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148 dnl Decompose required version string of MySQL
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149 dnl and calculate its number representation
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150
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151 mysql_version_req_major=`expr ${mysql_version_req} : '\([[0-9]]*\)'`
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152 mysql_version_req_minor=`expr ${mysql_version_req} : '[[0-9]]*\.\([[0-9]]*\)'`
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153 mysql_version_req_micro=`expr ${mysql_version_req} : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
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154
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155 AS_IF([test "x${mysql_version_req_micro}" = "x"],
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156 [mysql_version_req_micro="0"])
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157
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158 mysql_version_req_number=`expr ${mysql_version_req_major} \* 1000000 \
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159 \+ ${mysql_version_req_minor} \* 1000 \
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160 \+ ${mysql_version_req_micro}`
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161
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162 dnl Decompose version string of installed MySQL
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163 dnl and calculate its number representation
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164
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165 mysql_version_major=`expr ${MYSQL_VERSION} : '\([[0-9]]*\)'`
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166 mysql_version_minor=`expr ${MYSQL_VERSION} : '[[0-9]]*\.\([[0-9]]*\)'`
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167 mysql_version_micro=`expr ${MYSQL_VERSION} : '[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)'`
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168
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169 AS_IF([test "x${mysql_version_micro}" = "x"],
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170 [mysql_version_micro="0"])
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171
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172 mysql_version_number=`expr ${mysql_version_major} \* 1000000 \
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173 \+ ${mysql_version_minor} \* 1000 \
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174 \+ ${mysql_version_micro}`
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175
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176 mysql_version_check=`expr ${mysql_version_number} \>\= ${mysql_version_req_number}`
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177
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178 AS_IF([test "x${mysql_version_check}" = "x1"],
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179 [AC_MSG_RESULT([yes])],
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180 [AC_MSG_RESULT([no])])
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181 ])
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182
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183 AC_SUBST([MYSQL_CFLAGS])
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184 AC_SUBST([MYSQL_CPPFLAGS])
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185 AC_SUBST([MYSQL_LDFLAGS])
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186 AC_SUBST([MYSQL_VERSION])
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187 ])
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