1 # vasnprintf.m4 serial 20
2 dnl Copyright (C) 2002-2004, 2006-2007 Free Software Foundation, Inc.
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.
7 AC_DEFUN([gl_FUNC_VASNPRINTF],
9 AC_REQUIRE([gl_EOVERFLOW])
10 AC_CHECK_FUNCS_ONCE([vasnprintf])
11 if test $ac_cv_func_vasnprintf = no; then
16 AC_DEFUN([gl_REPLACE_VASNPRINTF],
18 AC_CHECK_FUNCS_ONCE([vasnprintf])
19 AC_LIBOBJ([vasnprintf])
20 AC_LIBOBJ([printf-args])
21 AC_LIBOBJ([printf-parse])
22 AC_LIBOBJ([asnprintf])
23 if test $ac_cv_func_vasnprintf = yes; then
24 AC_DEFINE([REPLACE_VASNPRINTF], 1,
25 [Define if vasnprintf exists but is overridden by gnulib.])
28 gl_PREREQ_PRINTF_PARSE
33 # Prequisites of lib/printf-args.h, lib/printf-args.c.
34 AC_DEFUN([gl_PREREQ_PRINTF_ARGS],
36 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
37 AC_REQUIRE([gt_TYPE_WCHAR_T])
38 AC_REQUIRE([gt_TYPE_WINT_T])
41 # Prequisites of lib/printf-parse.h, lib/printf-parse.c.
42 AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
44 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
45 AC_REQUIRE([gt_TYPE_WCHAR_T])
46 AC_REQUIRE([gt_TYPE_WINT_T])
47 AC_REQUIRE([AC_TYPE_SIZE_T])
48 AC_CHECK_TYPES(ptrdiff_t)
49 AC_REQUIRE([gt_AC_TYPE_INTMAX_T])
52 # Prerequisites of lib/vasnprintf.c.
53 AC_DEFUN([gl_PREREQ_VASNPRINTF],
55 AC_REQUIRE([AC_FUNC_ALLOCA])
56 AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
57 AC_REQUIRE([gt_TYPE_WCHAR_T])
58 AC_REQUIRE([gt_TYPE_WINT_T])
59 AC_CHECK_FUNCS(snprintf wcslen)
60 dnl Use the _snprintf function only if it is declared (because on NetBSD it
61 dnl is defined as a weak alias of snprintf; we prefer to use the latter).
62 AC_CHECK_DECLS([_snprintf], , , [#include <stdio.h>])
65 # Extra prerequisites of lib/vasnprintf.c for supporting 'long double'
67 AC_DEFUN([gl_PREREQ_VASNPRINTF_LONG_DOUBLE],
69 AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
70 case "$gl_cv_func_printf_long_double" in
74 AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], 1,
75 [Define if the vasnprintf implementation needs special code for
76 'long double' arguments.])
81 # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double'
83 AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE],
85 AC_REQUIRE([gl_PRINTF_INFINITE])
86 case "$gl_cv_func_printf_infinite" in
90 AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], 1,
91 [Define if the vasnprintf implementation needs special code for
92 infinite 'double' arguments.])
97 # Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double'
99 AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE],
101 AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
102 dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if
103 dnl NEED_PRINTF_LONG_DOUBLE is already set.
104 AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE])
105 case "$gl_cv_func_printf_long_double" in
107 case "$gl_cv_func_printf_infinite_long_double" in
111 AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], 1,
112 [Define if the vasnprintf implementation needs special code for
113 infinite 'long double' arguments.])
120 # Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive.
121 AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A],
123 AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
124 case "$gl_cv_func_printf_directive_a" in
128 AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], 1,
129 [Define if the vasnprintf implementation needs special code for
130 the 'a' and 'A' directives.])
131 AC_CHECK_FUNCS([nl_langinfo])
136 # Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive.
137 AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F],
139 AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
140 case "$gl_cv_func_printf_directive_f" in
144 AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], 1,
145 [Define if the vasnprintf implementation needs special code for
151 # Extra prerequisites of lib/vasnprintf.c for supporting the ' flag.
152 AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING],
154 AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
155 case "$gl_cv_func_printf_flag_grouping" in
159 AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], 1,
160 [Define if the vasnprintf implementation needs special code for the
166 # Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag.
167 AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO],
169 AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
170 case "$gl_cv_func_printf_flag_zero" in
174 AC_DEFINE([NEED_PRINTF_FLAG_ZERO], 1,
175 [Define if the vasnprintf implementation needs special code for the
181 # Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance.
182 AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS],
184 AC_REQUIRE([gl_PREREQ_VASNPRINTF])
185 gl_PREREQ_VASNPRINTF_LONG_DOUBLE
186 gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE
187 gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE
188 gl_PREREQ_VASNPRINTF_DIRECTIVE_A
189 gl_PREREQ_VASNPRINTF_DIRECTIVE_F
190 gl_PREREQ_VASNPRINTF_FLAG_GROUPING
191 gl_PREREQ_VASNPRINTF_FLAG_ZERO
194 # Prerequisites of lib/asnprintf.c.
195 AC_DEFUN([gl_PREREQ_ASNPRINTF],