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1 # vasnprintf.m4 serial 25
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2 dnl Copyright (C) 2002-2004, 2006-2008 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 AC_DEFUN([gl_FUNC_VASNPRINTF],
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8 [
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9 AC_CHECK_FUNCS_ONCE([vasnprintf])
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10 if test $ac_cv_func_vasnprintf = no; then
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11 gl_REPLACE_VASNPRINTF
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12 fi
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13 ])
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14
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15 AC_DEFUN([gl_REPLACE_VASNPRINTF],
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16 [
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17 AC_CHECK_FUNCS_ONCE([vasnprintf])
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18 AC_LIBOBJ([vasnprintf])
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19 AC_LIBOBJ([printf-args])
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20 AC_LIBOBJ([printf-parse])
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21 AC_LIBOBJ([asnprintf])
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22 if test $ac_cv_func_vasnprintf = yes; then
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23 AC_DEFINE([REPLACE_VASNPRINTF], 1,
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24 [Define if vasnprintf exists but is overridden by gnulib.])
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25 fi
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26 gl_PREREQ_PRINTF_ARGS
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27 gl_PREREQ_PRINTF_PARSE
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28 gl_PREREQ_VASNPRINTF
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29 gl_PREREQ_ASNPRINTF
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30 ])
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31
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32 # Prequisites of lib/printf-args.h, lib/printf-args.c.
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33 AC_DEFUN([gl_PREREQ_PRINTF_ARGS],
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34 [
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35 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
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36 AC_REQUIRE([gt_TYPE_WCHAR_T])
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37 AC_REQUIRE([gt_TYPE_WINT_T])
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38 ])
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39
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40 # Prequisites of lib/printf-parse.h, lib/printf-parse.c.
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41 AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
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42 [
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43 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
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44 AC_REQUIRE([gt_TYPE_WCHAR_T])
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45 AC_REQUIRE([gt_TYPE_WINT_T])
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46 AC_REQUIRE([AC_TYPE_SIZE_T])
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47 AC_CHECK_TYPE([ptrdiff_t], ,
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48 [AC_DEFINE([ptrdiff_t], [long],
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49 [Define as the type of the result of subtracting two pointers, if the system doesn't define it.])
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50 ])
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51 AC_REQUIRE([gt_AC_TYPE_INTMAX_T])
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52 ])
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53
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54 # Prerequisites of lib/vasnprintf.c.
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55 AC_DEFUN([gl_PREREQ_VASNPRINTF],
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56 [
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57 AC_REQUIRE([AC_FUNC_ALLOCA])
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58 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
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59 AC_REQUIRE([gt_TYPE_WCHAR_T])
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60 AC_REQUIRE([gt_TYPE_WINT_T])
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61 AC_CHECK_FUNCS(snprintf wcslen)
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62 dnl Use the _snprintf function only if it is declared (because on NetBSD it
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63 dnl is defined as a weak alias of snprintf; we prefer to use the latter).
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64 AC_CHECK_DECLS([_snprintf], , , [#include <stdio.h>])
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65 ])
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66
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67 # Extra prerequisites of lib/vasnprintf.c for supporting 'long double'
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68 # arguments.
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69 AC_DEFUN([gl_PREREQ_VASNPRINTF_LONG_DOUBLE],
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70 [
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71 AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
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72 case "$gl_cv_func_printf_long_double" in
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73 *yes)
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74 ;;
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75 *)
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76 AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1,
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77 [Define if the vasnprintf implementation needs special code for
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78 'long double' arguments.])
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79 ;;
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80 esac
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81 ])
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82
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83 # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double'
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84 # arguments.
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85 AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE],
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86 [
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87 AC_REQUIRE([gl_PRINTF_INFINITE])
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88 case "$gl_cv_func_printf_infinite" in
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89 *yes)
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90 ;;
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91 *)
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92 AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], 1,
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93 [Define if the vasnprintf implementation needs special code for
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94 infinite 'double' arguments.])
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95 ;;
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96 esac
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97 ])
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98
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99 # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double'
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100 # arguments.
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101 AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE],
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102 [
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103 AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
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104 dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if
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105 dnl NEED_PRINTF_LONG_DOUBLE is already set.
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106 AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE])
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107 case "$gl_cv_func_printf_long_double" in
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108 *yes)
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109 case "$gl_cv_func_printf_infinite_long_double" in
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110 *yes)
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111 ;;
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112 *)
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113 AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], 1,
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114 [Define if the vasnprintf implementation needs special code for
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115 infinite 'long double' arguments.])
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116 ;;
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117 esac
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118 ;;
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119 esac
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120 ])
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121
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122 # Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive.
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123 AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A],
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124 [
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125 AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
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126 case "$gl_cv_func_printf_directive_a" in
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127 *yes)
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128 ;;
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129 *)
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130 AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], 1,
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131 [Define if the vasnprintf implementation needs special code for
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132 the 'a' and 'A' directives.])
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133 AC_CHECK_FUNCS([nl_langinfo])
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134 ;;
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135 esac
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136 ])
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137
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138 # Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive.
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139 AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F],
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140 [
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141 AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
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142 case "$gl_cv_func_printf_directive_f" in
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143 *yes)
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144 ;;
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145 *)
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146 AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], 1,
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147 [Define if the vasnprintf implementation needs special code for
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148 the 'F' directive.])
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149 ;;
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150 esac
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151 ])
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152
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153 # Extra prerequisites of lib/vasnprintf.c for supporting the ' flag.
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154 AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING],
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155 [
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156 AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
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157 case "$gl_cv_func_printf_flag_grouping" in
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158 *yes)
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159 ;;
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160 *)
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161 AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], 1,
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162 [Define if the vasnprintf implementation needs special code for the
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163 ' flag.])
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164 ;;
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165 esac
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166 ])
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167
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168 # Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag.
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169 AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST],
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170 [
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171 AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
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172 case "$gl_cv_func_printf_flag_leftadjust" in
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173 *yes)
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174 ;;
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175 *)
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176 AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], 1,
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177 [Define if the vasnprintf implementation needs special code for the
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178 '-' flag.])
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179 ;;
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180 esac
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181 ])
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182
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183 # Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag.
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184 AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO],
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185 [
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186 AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
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187 case "$gl_cv_func_printf_flag_zero" in
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188 *yes)
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189 ;;
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190 *)
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191 AC_DEFINE([NEED_PRINTF_FLAG_ZERO], 1,
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192 [Define if the vasnprintf implementation needs special code for the
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193 0 flag.])
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194 ;;
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195 esac
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196 ])
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197
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198 # Extra prerequisites of lib/vasnprintf.c for supporting large precisions.
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199 AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION],
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200 [
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201 AC_REQUIRE([gl_PRINTF_PRECISION])
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202 case "$gl_cv_func_printf_precision" in
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203 *yes)
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204 ;;
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205 *)
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206 AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], 1,
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207 [Define if the vasnprintf implementation needs special code for
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208 supporting large precisions without arbitrary bounds.])
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209 AC_DEFINE([NEED_PRINTF_DOUBLE], 1,
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210 [Define if the vasnprintf implementation needs special code for
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211 'double' arguments.])
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212 AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1,
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213 [Define if the vasnprintf implementation needs special code for
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214 'long double' arguments.])
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215 ;;
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216 esac
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217 ])
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218
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219 # Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory
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220 # conditions.
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221 AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM],
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222 [
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223 AC_REQUIRE([gl_PRINTF_ENOMEM])
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224 case "$gl_cv_func_printf_enomem" in
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225 *yes)
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226 ;;
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227 *)
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228 AC_DEFINE([NEED_PRINTF_ENOMEM], 1,
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229 [Define if the vasnprintf implementation needs special code for
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230 surviving out-of-memory conditions.])
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231 AC_DEFINE([NEED_PRINTF_DOUBLE], 1,
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232 [Define if the vasnprintf implementation needs special code for
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233 'double' arguments.])
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234 AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1,
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235 [Define if the vasnprintf implementation needs special code for
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236 'long double' arguments.])
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237 ;;
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238 esac
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239 ])
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240
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241 # Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance.
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242 AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS],
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243 [
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244 AC_REQUIRE([gl_PREREQ_VASNPRINTF])
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245 gl_PREREQ_VASNPRINTF_LONG_DOUBLE
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246 gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
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247 gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
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248 gl_PREREQ_VASNPRINTF_DIRECTIVE_A
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249 gl_PREREQ_VASNPRINTF_DIRECTIVE_F
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250 gl_PREREQ_VASNPRINTF_FLAG_GROUPING
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251 gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST
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252 gl_PREREQ_VASNPRINTF_FLAG_ZERO
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253 gl_PREREQ_VASNPRINTF_PRECISION
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254 gl_PREREQ_VASNPRINTF_ENOMEM
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255 ])
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256
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257 # Prerequisites of lib/asnprintf.c.
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258 AC_DEFUN([gl_PREREQ_ASNPRINTF],
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259 [
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260 ])
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