3 dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 AC_DEFUN([gl_FUNC_VFPRINTF_POSIX],
10 AC_REQUIRE([gl_FUNC_VFPRINTF_IS_POSIX])
11 if test $gl_cv_func_vfprintf_posix = no; then
12 gl_PREREQ_VASNPRINTF_WITH_POSIX_EXTRAS
18 dnl Test whether vfprintf is POSIX compliant.
19 dnl Result is gl_cv_func_vfprintf_posix.
20 AC_DEFUN([gl_FUNC_VFPRINTF_IS_POSIX],
22 AC_REQUIRE([gl_PRINTF_SIZES_C99])
23 AC_REQUIRE([gl_PRINTF_SIZES_C23])
24 AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])
25 AC_REQUIRE([gl_PRINTF_INFINITE])
26 AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])
27 AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
28 AC_REQUIRE([gl_PRINTF_DIRECTIVE_B])
29 AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
30 m4_ifdef([gl_PRINTF_SUPPORT_N_DIRECTIVE],[AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])])
31 AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS])
32 AC_REQUIRE([gl_PRINTF_DIRECTIVE_LC])
33 AC_REQUIRE([gl_PRINTF_POSITIONS])
34 AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])
35 AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])
36 AC_REQUIRE([gl_PRINTF_FLAG_ZERO])
37 AC_REQUIRE([gl_PRINTF_FLAG_ALT_PRECISION_ZERO])
38 AC_REQUIRE([gl_PRINTF_PRECISION])
39 AC_REQUIRE([gl_PRINTF_ENOMEM])
40 gl_cv_func_vfprintf_posix=no
41 case "$gl_cv_func_printf_sizes_c99" in
43 case "$gl_cv_func_printf_sizes_c23" in
45 case "$gl_cv_func_printf_long_double" in
47 case "$gl_cv_func_printf_infinite" in
49 case "$gl_cv_func_printf_infinite_long_double" in
51 case "$gl_cv_func_printf_directive_a" in
53 case "$gl_cv_func_printf_directive_b" in
55 case "$gl_cv_func_printf_directive_f" in
57 case m4_ifdef([gl_PRINTF_SUPPORT_N_DIRECTIVE],["$gl_cv_func_printf_directive_n"],["yes"]) in
59 case "$gl_cv_func_printf_directive_ls" in
61 case "$gl_cv_func_printf_directive_lc" in
63 case "$gl_cv_func_printf_positions" in
65 case "$gl_cv_func_printf_flag_grouping" in
67 case "$gl_cv_func_printf_flag_leftadjust" in
69 case "$gl_cv_func_printf_flag_zero" in
71 case "$gl_cv_func_printf_flag_alt_precision_zero" in
73 case "$gl_cv_func_printf_precision" in
75 case "$gl_cv_func_printf_enomem" in
77 # vfprintf exists and is
78 # already POSIX compliant.
79 gl_cv_func_vfprintf_posix=yes
118 AC_DEFUN([gl_REPLACE_VFPRINTF],
120 AC_REQUIRE([gl_STDIO_H_DEFAULTS])
121 AC_LIBOBJ([vfprintf])
123 AC_DEFINE([REPLACE_VFPRINTF_POSIX], [1],
124 [Define if vfprintf is overridden by a POSIX compliant gnulib implementation.])
128 AC_DEFUN([gl_PREREQ_VFPRINTF], [:])