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1 /* Message catalogs for internationalization.
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2 Copyright (C) 1995-1997, 2000-2003 Free Software Foundation, Inc.
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3
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4 This program is free software; you can redistribute it and/or modify it
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5 under the terms of the GNU Library General Public License as published
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6 by the Free Software Foundation; either version 2, or (at your option)
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7 any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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12 Library General Public License for more details.
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13
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14 You should have received a copy of the GNU Library General Public
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15 License along with this program; if not, write to the Free Software
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16 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
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17 USA. */
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18
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19 #ifndef _LIBINTL_H
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20 #define _LIBINTL_H 1
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21
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22 #include <locale.h>
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23
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24 /* The LC_MESSAGES locale category is the category used by the functions
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25 gettext() and dgettext(). It is specified in POSIX, but not in ANSI C.
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26 On systems that don't define it, use an arbitrary value instead.
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27 On Solaris, <locale.h> defines __LOCALE_H (or _LOCALE_H in Solaris 2.5)
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28 then includes <libintl.h> (i.e. this file!) and then only defines
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29 LC_MESSAGES. To avoid a redefinition warning, don't define LC_MESSAGES
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30 in this case. */
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31 #if !defined LC_MESSAGES && !(defined __LOCALE_H || (defined _LOCALE_H && defined __sun))
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32 # define LC_MESSAGES 1729
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33 #endif
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34
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35 /* We define an additional symbol to signal that we use the GNU
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36 implementation of gettext. */
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37 #define __USE_GNU_GETTEXT 1
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38
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39 /* Provide information about the supported file formats. Returns the
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40 maximum minor revision number supported for a given major revision. */
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41 #define __GNU_GETTEXT_SUPPORTED_REVISION(major) \
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42 ((major) == 0 ? 1 : -1)
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43
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44 /* Resolve a platform specific conflict on DJGPP. GNU gettext takes
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45 precedence over _conio_gettext. */
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46 #ifdef __DJGPP__
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47 # undef gettext
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48 #endif
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49
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50 /* Use _INTL_PARAMS, not PARAMS, in order to avoid clashes with identifiers
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51 used by programs. Similarly, test __PROTOTYPES, not PROTOTYPES. */
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52 #ifndef _INTL_PARAMS
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53 # if __STDC__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
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54 # define _INTL_PARAMS(args) args
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55 # else
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56 # define _INTL_PARAMS(args) ()
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57 # endif
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58 #endif
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59
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60 #ifdef __cplusplus
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61 extern "C" {
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62 #endif
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63
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64
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65 /* We redirect the functions to those prefixed with "libintl_". This is
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66 necessary, because some systems define gettext/textdomain/... in the C
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67 library (namely, Solaris 2.4 and newer, and GNU libc 2.0 and newer).
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68 If we used the unprefixed names, there would be cases where the
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69 definition in the C library would override the one in the libintl.so
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70 shared library. Recall that on ELF systems, the symbols are looked
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71 up in the following order:
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72 1. in the executable,
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73 2. in the shared libraries specified on the link command line, in order,
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74 3. in the dependencies of the shared libraries specified on the link
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75 command line,
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76 4. in the dlopen()ed shared libraries, in the order in which they were
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77 dlopen()ed.
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78 The definition in the C library would override the one in libintl.so if
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79 either
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80 * -lc is given on the link command line and -lintl isn't, or
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81 * -lc is given on the link command line before -lintl, or
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82 * libintl.so is a dependency of a dlopen()ed shared library but not
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83 linked to the executable at link time.
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84 Since Solaris gettext() behaves differently than GNU gettext(), this
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85 would be unacceptable.
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86
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87 The redirection happens by default through macros in C, so that &gettext
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88 is independent of the compilation unit, but through inline functions in
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89 C++, in order not to interfere with the name mangling of class fields or
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90 class methods called 'gettext'. */
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91
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92 /* The user can define _INTL_REDIRECT_INLINE or _INTL_REDIRECT_MACROS.
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93 If he doesn't, we choose the method. A third possible method is
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94 _INTL_REDIRECT_ASM, supported only by GCC. */
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95 #if !(defined _INTL_REDIRECT_INLINE || defined _INTL_REDIRECT_MACROS)
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96 # if __GNUC__ >= 2 && !defined __APPLE_CC__ && (defined __STDC__ || defined __cplusplus)
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97 # define _INTL_REDIRECT_ASM
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98 # else
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99 # ifdef __cplusplus
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100 # define _INTL_REDIRECT_INLINE
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101 # else
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102 # define _INTL_REDIRECT_MACROS
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103 # endif
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104 # endif
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105 #endif
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106 /* Auxiliary macros. */
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107 #ifdef _INTL_REDIRECT_ASM
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108 # define _INTL_ASM(cname) __asm__ (_INTL_ASMNAME (__USER_LABEL_PREFIX__, #cname))
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109 # define _INTL_ASMNAME(prefix,cnamestring) _INTL_STRINGIFY (prefix) cnamestring
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110 # define _INTL_STRINGIFY(prefix) #prefix
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111 #else
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112 # define _INTL_ASM(cname)
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113 #endif
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114
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115 /* Look up MSGID in the current default message catalog for the current
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116 LC_MESSAGES locale. If not found, returns MSGID itself (the default
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117 text). */
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118 #ifdef _INTL_REDIRECT_INLINE
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119 extern char *libintl_gettext (const char *__msgid);
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120 static inline char *gettext (const char *__msgid)
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121 {
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122 return libintl_gettext (__msgid);
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123 }
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124 #else
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125 #ifdef _INTL_REDIRECT_MACROS
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126 # define gettext libintl_gettext
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127 #endif
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128 extern char *gettext _INTL_PARAMS ((const char *__msgid))
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129 _INTL_ASM (libintl_gettext);
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130 #endif
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131
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132 /* Look up MSGID in the DOMAINNAME message catalog for the current
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133 LC_MESSAGES locale. */
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134 #ifdef _INTL_REDIRECT_INLINE
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135 extern char *libintl_dgettext (const char *__domainname, const char *__msgid);
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136 static inline char *dgettext (const char *__domainname, const char *__msgid)
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137 {
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138 return libintl_dgettext (__domainname, __msgid);
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139 }
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140 #else
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141 #ifdef _INTL_REDIRECT_MACROS
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142 # define dgettext libintl_dgettext
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143 #endif
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144 extern char *dgettext _INTL_PARAMS ((const char *__domainname,
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145 const char *__msgid))
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146 _INTL_ASM (libintl_dgettext);
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147 #endif
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148
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149 /* Look up MSGID in the DOMAINNAME message catalog for the current CATEGORY
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150 locale. */
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151 #ifdef _INTL_REDIRECT_INLINE
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152 extern char *libintl_dcgettext (const char *__domainname, const char *__msgid,
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153 int __category);
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154 static inline char *dcgettext (const char *__domainname, const char *__msgid,
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155 int __category)
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156 {
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157 return libintl_dcgettext (__domainname, __msgid, __category);
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158 }
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159 #else
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160 #ifdef _INTL_REDIRECT_MACROS
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161 # define dcgettext libintl_dcgettext
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162 #endif
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163 extern char *dcgettext _INTL_PARAMS ((const char *__domainname,
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164 const char *__msgid,
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165 int __category))
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166 _INTL_ASM (libintl_dcgettext);
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167 #endif
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168
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169
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170 /* Similar to `gettext' but select the plural form corresponding to the
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171 number N. */
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172 #ifdef _INTL_REDIRECT_INLINE
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173 extern char *libintl_ngettext (const char *__msgid1, const char *__msgid2,
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174 unsigned long int __n);
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175 static inline char *ngettext (const char *__msgid1, const char *__msgid2,
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176 unsigned long int __n)
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177 {
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178 return libintl_ngettext (__msgid1, __msgid2, __n);
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179 }
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180 #else
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181 #ifdef _INTL_REDIRECT_MACROS
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182 # define ngettext libintl_ngettext
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183 #endif
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184 extern char *ngettext _INTL_PARAMS ((const char *__msgid1,
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185 const char *__msgid2,
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186 unsigned long int __n))
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187 _INTL_ASM (libintl_ngettext);
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188 #endif
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189
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190 /* Similar to `dgettext' but select the plural form corresponding to the
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191 number N. */
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192 #ifdef _INTL_REDIRECT_INLINE
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193 extern char *libintl_dngettext (const char *__domainname, const char *__msgid1,
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194 const char *__msgid2, unsigned long int __n);
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195 static inline char *dngettext (const char *__domainname, const char *__msgid1,
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196 const char *__msgid2, unsigned long int __n)
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197 {
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198 return libintl_dngettext (__domainname, __msgid1, __msgid2, __n);
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199 }
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200 #else
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201 #ifdef _INTL_REDIRECT_MACROS
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202 # define dngettext libintl_dngettext
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203 #endif
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204 extern char *dngettext _INTL_PARAMS ((const char *__domainname,
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205 const char *__msgid1,
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206 const char *__msgid2,
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207 unsigned long int __n))
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208 _INTL_ASM (libintl_dngettext);
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209 #endif
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210
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211 /* Similar to `dcgettext' but select the plural form corresponding to the
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212 number N. */
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213 #ifdef _INTL_REDIRECT_INLINE
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214 extern char *libintl_dcngettext (const char *__domainname,
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215 const char *__msgid1, const char *__msgid2,
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216 unsigned long int __n, int __category);
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217 static inline char *dcngettext (const char *__domainname,
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218 const char *__msgid1, const char *__msgid2,
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219 unsigned long int __n, int __category)
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220 {
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221 return libintl_dcngettext (__domainname, __msgid1, __msgid2, __n, __category);
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222 }
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223 #else
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224 #ifdef _INTL_REDIRECT_MACROS
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225 # define dcngettext libintl_dcngettext
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226 #endif
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227 extern char *dcngettext _INTL_PARAMS ((const char *__domainname,
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228 const char *__msgid1,
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229 const char *__msgid2,
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230 unsigned long int __n,
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231 int __category))
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232 _INTL_ASM (libintl_dcngettext);
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233 #endif
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234
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235
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236 /* Set the current default message catalog to DOMAINNAME.
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237 If DOMAINNAME is null, return the current default.
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238 If DOMAINNAME is "", reset to the default of "messages". */
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239 #ifdef _INTL_REDIRECT_INLINE
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240 extern char *libintl_textdomain (const char *__domainname);
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241 static inline char *textdomain (const char *__domainname)
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242 {
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243 return libintl_textdomain (__domainname);
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244 }
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245 #else
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246 #ifdef _INTL_REDIRECT_MACROS
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247 # define textdomain libintl_textdomain
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248 #endif
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249 extern char *textdomain _INTL_PARAMS ((const char *__domainname))
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250 _INTL_ASM (libintl_textdomain);
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251 #endif
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252
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253 /* Specify that the DOMAINNAME message catalog will be found
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254 in DIRNAME rather than in the system locale data base. */
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255 #ifdef _INTL_REDIRECT_INLINE
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256 extern char *libintl_bindtextdomain (const char *__domainname,
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257 const char *__dirname);
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258 static inline char *bindtextdomain (const char *__domainname,
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259 const char *__dirname)
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260 {
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261 return libintl_bindtextdomain (__domainname, __dirname);
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262 }
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263 #else
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264 #ifdef _INTL_REDIRECT_MACROS
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265 # define bindtextdomain libintl_bindtextdomain
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266 #endif
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267 extern char *bindtextdomain _INTL_PARAMS ((const char *__domainname,
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268 const char *__dirname))
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269 _INTL_ASM (libintl_bindtextdomain);
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270 #endif
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271
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272 /* Specify the character encoding in which the messages from the
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273 DOMAINNAME message catalog will be returned. */
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274 #ifdef _INTL_REDIRECT_INLINE
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275 extern char *libintl_bind_textdomain_codeset (const char *__domainname,
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276 const char *__codeset);
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277 static inline char *bind_textdomain_codeset (const char *__domainname,
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278 const char *__codeset)
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279 {
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280 return libintl_bind_textdomain_codeset (__domainname, __codeset);
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281 }
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282 #else
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283 #ifdef _INTL_REDIRECT_MACROS
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284 # define bind_textdomain_codeset libintl_bind_textdomain_codeset
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285 #endif
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286 extern char *bind_textdomain_codeset _INTL_PARAMS ((const char *__domainname,
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287 const char *__codeset))
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288 _INTL_ASM (libintl_bind_textdomain_codeset);
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289 #endif
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290
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291
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292 /* Support for relocatable packages. */
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293
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294 /* Sets the original and the current installation prefix of the package.
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295 Relocation simply replaces a pathname starting with the original prefix
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296 by the corresponding pathname with the current prefix instead. Both
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297 prefixes should be directory names without trailing slash (i.e. use ""
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298 instead of "/"). */
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299 #define libintl_set_relocation_prefix libintl_set_relocation_prefix
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300 extern void
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301 libintl_set_relocation_prefix _INTL_PARAMS ((const char *orig_prefix,
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302 const char *curr_prefix));
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303
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304
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305 #ifdef __cplusplus
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306 }
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307 #endif
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308
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309 #endif /* libintl.h */
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