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af07e104 AW |
1 | # vasnprintf.m4 serial 36 |
2 | dnl Copyright (C) 2002-2004, 2006-2013 Free Software Foundation, Inc. | |
c4b681fd LC |
3 | dnl This file is free software; the Free Software Foundation |
4 | dnl gives unlimited permission to copy and/or distribute it, | |
5 | dnl with or without modifications, as long as this notice is preserved. | |
6 | ||
7 | AC_DEFUN([gl_FUNC_VASNPRINTF], | |
8 | [ | |
9 | AC_CHECK_FUNCS_ONCE([vasnprintf]) | |
10 | if test $ac_cv_func_vasnprintf = no; then | |
11 | gl_REPLACE_VASNPRINTF | |
12 | fi | |
13 | ]) | |
14 | ||
15 | AC_DEFUN([gl_REPLACE_VASNPRINTF], | |
16 | [ | |
17 | AC_CHECK_FUNCS_ONCE([vasnprintf]) | |
18 | AC_LIBOBJ([vasnprintf]) | |
19 | AC_LIBOBJ([printf-args]) | |
20 | AC_LIBOBJ([printf-parse]) | |
21 | AC_LIBOBJ([asnprintf]) | |
22 | if test $ac_cv_func_vasnprintf = yes; then | |
23 | AC_DEFINE([REPLACE_VASNPRINTF], [1], | |
24 | [Define if vasnprintf exists but is overridden by gnulib.]) | |
25 | fi | |
26 | gl_PREREQ_PRINTF_ARGS | |
27 | gl_PREREQ_PRINTF_PARSE | |
28 | gl_PREREQ_VASNPRINTF | |
29 | gl_PREREQ_ASNPRINTF | |
30 | ]) | |
31 | ||
005de2e8 | 32 | # Prerequisites of lib/printf-args.h, lib/printf-args.c. |
c4b681fd LC |
33 | AC_DEFUN([gl_PREREQ_PRINTF_ARGS], |
34 | [ | |
35 | AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) | |
36 | AC_REQUIRE([gt_TYPE_WCHAR_T]) | |
37 | AC_REQUIRE([gt_TYPE_WINT_T]) | |
38 | ]) | |
39 | ||
005de2e8 | 40 | # Prerequisites of lib/printf-parse.h, lib/printf-parse.c. |
c4b681fd LC |
41 | AC_DEFUN([gl_PREREQ_PRINTF_PARSE], |
42 | [ | |
0f00f2c3 | 43 | AC_REQUIRE([gl_FEATURES_H]) |
c4b681fd LC |
44 | AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) |
45 | AC_REQUIRE([gt_TYPE_WCHAR_T]) | |
46 | AC_REQUIRE([gt_TYPE_WINT_T]) | |
47 | AC_REQUIRE([AC_TYPE_SIZE_T]) | |
48 | AC_CHECK_TYPE([ptrdiff_t], , | |
49 | [AC_DEFINE([ptrdiff_t], [long], | |
50 | [Define as the type of the result of subtracting two pointers, if the system doesn't define it.]) | |
51 | ]) | |
52 | AC_REQUIRE([gt_AC_TYPE_INTMAX_T]) | |
53 | ]) | |
54 | ||
55 | # Prerequisites of lib/vasnprintf.c. | |
56 | AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF], | |
57 | [ | |
58 | AC_REQUIRE([AC_FUNC_ALLOCA]) | |
59 | AC_REQUIRE([AC_TYPE_LONG_LONG_INT]) | |
60 | AC_REQUIRE([gt_TYPE_WCHAR_T]) | |
61 | AC_REQUIRE([gt_TYPE_WINT_T]) | |
62 | AC_CHECK_FUNCS([snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb]) | |
63 | dnl Use the _snprintf function only if it is declared (because on NetBSD it | |
64 | dnl is defined as a weak alias of snprintf; we prefer to use the latter). | |
35428fb6 LC |
65 | AC_CHECK_DECLS([_snprintf], , , [[#include <stdio.h>]]) |
66 | dnl Knowing DBL_EXPBIT0_WORD and DBL_EXPBIT0_BIT enables an optimization | |
67 | dnl in the code for NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE. | |
68 | AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION]) | |
a927b6c1 LC |
69 | dnl We can avoid a lot of code by assuming that snprintf's return value |
70 | dnl conforms to ISO C99. So check that. | |
71 | AC_REQUIRE([gl_SNPRINTF_RETVAL_C99]) | |
72 | case "$gl_cv_func_snprintf_retval_c99" in | |
73 | *yes) | |
74 | AC_DEFINE([HAVE_SNPRINTF_RETVAL_C99], [1], | |
75 | [Define if the return value of the snprintf function is the number of | |
76 | of bytes (excluding the terminating NUL) that would have been produced | |
77 | if the buffer had been large enough.]) | |
78 | ;; | |
79 | esac | |
c4b681fd LC |
80 | ]) |
81 | ||
82 | # Extra prerequisites of lib/vasnprintf.c for supporting 'long double' | |
83 | # arguments. | |
84 | AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE], | |
85 | [ | |
86 | AC_REQUIRE([gl_PRINTF_LONG_DOUBLE]) | |
87 | case "$gl_cv_func_printf_long_double" in | |
88 | *yes) | |
89 | ;; | |
90 | *) | |
91 | AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], | |
92 | [Define if the vasnprintf implementation needs special code for | |
93 | 'long double' arguments.]) | |
94 | ;; | |
95 | esac | |
96 | ]) | |
97 | ||
98 | # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double' | |
99 | # arguments. | |
100 | AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE], | |
101 | [ | |
102 | AC_REQUIRE([gl_PRINTF_INFINITE]) | |
103 | case "$gl_cv_func_printf_infinite" in | |
104 | *yes) | |
105 | ;; | |
106 | *) | |
107 | AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], [1], | |
108 | [Define if the vasnprintf implementation needs special code for | |
109 | infinite 'double' arguments.]) | |
110 | ;; | |
111 | esac | |
112 | ]) | |
113 | ||
114 | # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double' | |
115 | # arguments. | |
116 | AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE], | |
117 | [ | |
118 | AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE]) | |
119 | dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if | |
120 | dnl NEED_PRINTF_LONG_DOUBLE is already set. | |
121 | AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE]) | |
122 | case "$gl_cv_func_printf_long_double" in | |
123 | *yes) | |
124 | case "$gl_cv_func_printf_infinite_long_double" in | |
125 | *yes) | |
126 | ;; | |
127 | *) | |
128 | AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], [1], | |
129 | [Define if the vasnprintf implementation needs special code for | |
130 | infinite 'long double' arguments.]) | |
131 | ;; | |
132 | esac | |
133 | ;; | |
134 | esac | |
135 | ]) | |
136 | ||
137 | # Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive. | |
138 | AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A], | |
139 | [ | |
140 | AC_REQUIRE([gl_PRINTF_DIRECTIVE_A]) | |
141 | case "$gl_cv_func_printf_directive_a" in | |
142 | *yes) | |
143 | ;; | |
144 | *) | |
145 | AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], [1], | |
146 | [Define if the vasnprintf implementation needs special code for | |
147 | the 'a' and 'A' directives.]) | |
148 | AC_CHECK_FUNCS([nl_langinfo]) | |
149 | ;; | |
150 | esac | |
151 | ]) | |
152 | ||
153 | # Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive. | |
154 | AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F], | |
155 | [ | |
156 | AC_REQUIRE([gl_PRINTF_DIRECTIVE_F]) | |
157 | case "$gl_cv_func_printf_directive_f" in | |
158 | *yes) | |
159 | ;; | |
160 | *) | |
161 | AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], [1], | |
162 | [Define if the vasnprintf implementation needs special code for | |
163 | the 'F' directive.]) | |
164 | ;; | |
165 | esac | |
166 | ]) | |
167 | ||
168 | # Extra prerequisites of lib/vasnprintf.c for supporting the 'ls' directive. | |
169 | AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_LS], | |
170 | [ | |
171 | AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS]) | |
172 | case "$gl_cv_func_printf_directive_ls" in | |
173 | *yes) | |
174 | ;; | |
175 | *) | |
176 | AC_DEFINE([NEED_PRINTF_DIRECTIVE_LS], [1], | |
177 | [Define if the vasnprintf implementation needs special code for | |
178 | the 'ls' directive.]) | |
179 | ;; | |
180 | esac | |
181 | ]) | |
182 | ||
183 | # Extra prerequisites of lib/vasnprintf.c for supporting the ' flag. | |
184 | AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING], | |
185 | [ | |
186 | AC_REQUIRE([gl_PRINTF_FLAG_GROUPING]) | |
187 | case "$gl_cv_func_printf_flag_grouping" in | |
188 | *yes) | |
189 | ;; | |
190 | *) | |
191 | AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], [1], | |
192 | [Define if the vasnprintf implementation needs special code for the | |
193 | ' flag.]) | |
194 | ;; | |
195 | esac | |
196 | ]) | |
197 | ||
198 | # Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag. | |
199 | AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST], | |
200 | [ | |
201 | AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST]) | |
202 | case "$gl_cv_func_printf_flag_leftadjust" in | |
203 | *yes) | |
204 | ;; | |
205 | *) | |
206 | AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], [1], | |
207 | [Define if the vasnprintf implementation needs special code for the | |
208 | '-' flag.]) | |
209 | ;; | |
210 | esac | |
211 | ]) | |
212 | ||
213 | # Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag. | |
214 | AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO], | |
215 | [ | |
216 | AC_REQUIRE([gl_PRINTF_FLAG_ZERO]) | |
217 | case "$gl_cv_func_printf_flag_zero" in | |
218 | *yes) | |
219 | ;; | |
220 | *) | |
221 | AC_DEFINE([NEED_PRINTF_FLAG_ZERO], [1], | |
222 | [Define if the vasnprintf implementation needs special code for the | |
223 | 0 flag.]) | |
224 | ;; | |
225 | esac | |
226 | ]) | |
227 | ||
228 | # Extra prerequisites of lib/vasnprintf.c for supporting large precisions. | |
229 | AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION], | |
230 | [ | |
231 | AC_REQUIRE([gl_PRINTF_PRECISION]) | |
232 | case "$gl_cv_func_printf_precision" in | |
233 | *yes) | |
234 | ;; | |
235 | *) | |
236 | AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], [1], | |
237 | [Define if the vasnprintf implementation needs special code for | |
238 | supporting large precisions without arbitrary bounds.]) | |
239 | AC_DEFINE([NEED_PRINTF_DOUBLE], [1], | |
240 | [Define if the vasnprintf implementation needs special code for | |
241 | 'double' arguments.]) | |
242 | AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], | |
243 | [Define if the vasnprintf implementation needs special code for | |
244 | 'long double' arguments.]) | |
245 | ;; | |
246 | esac | |
247 | ]) | |
248 | ||
249 | # Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory | |
250 | # conditions. | |
251 | AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM], | |
252 | [ | |
253 | AC_REQUIRE([gl_PRINTF_ENOMEM]) | |
254 | case "$gl_cv_func_printf_enomem" in | |
255 | *yes) | |
256 | ;; | |
257 | *) | |
258 | AC_DEFINE([NEED_PRINTF_ENOMEM], [1], | |
259 | [Define if the vasnprintf implementation needs special code for | |
260 | surviving out-of-memory conditions.]) | |
261 | AC_DEFINE([NEED_PRINTF_DOUBLE], [1], | |
262 | [Define if the vasnprintf implementation needs special code for | |
263 | 'double' arguments.]) | |
264 | AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1], | |
265 | [Define if the vasnprintf implementation needs special code for | |
266 | 'long double' arguments.]) | |
267 | ;; | |
268 | esac | |
269 | ]) | |
270 | ||
271 | # Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance. | |
272 | AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS], | |
273 | [ | |
274 | AC_REQUIRE([gl_PREREQ_VASNPRINTF]) | |
275 | gl_PREREQ_VASNPRINTF_LONG_DOUBLE | |
276 | gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE | |
277 | gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE | |
278 | gl_PREREQ_VASNPRINTF_DIRECTIVE_A | |
279 | gl_PREREQ_VASNPRINTF_DIRECTIVE_F | |
280 | gl_PREREQ_VASNPRINTF_DIRECTIVE_LS | |
281 | gl_PREREQ_VASNPRINTF_FLAG_GROUPING | |
282 | gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST | |
283 | gl_PREREQ_VASNPRINTF_FLAG_ZERO | |
284 | gl_PREREQ_VASNPRINTF_PRECISION | |
285 | gl_PREREQ_VASNPRINTF_ENOMEM | |
286 | ]) | |
287 | ||
288 | # Prerequisites of lib/asnprintf.c. | |
289 | AC_DEFUN([gl_PREREQ_ASNPRINTF], | |
290 | [ | |
291 | ]) |