1 # snprintf-posix.m4 serial 3
2 dnl Copyright (C) 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_SNPRINTF_POSIX],
9 AC_REQUIRE([gl_EOVERFLOW])
10 AC_REQUIRE([gl_PRINTF_SIZES_C99])
11 AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
12 AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])
13 AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
14 AC_REQUIRE([gl_PRINTF_POSITIONS])
15 gl_cv_func_snprintf_posix=no
16 AC_CHECK_FUNCS([snprintf])
17 if test $ac_cv_func_snprintf = yes; then
18 gl_SNPRINTF_TRUNCATION_C99
19 gl_SNPRINTF_RETVAL_C99
20 gl_SNPRINTF_DIRECTIVE_N
21 case "$gl_cv_func_printf_sizes_c99" in
23 case "$gl_cv_func_printf_directive_a" in
25 case "$gl_cv_func_printf_directive_f" in
27 case "$gl_cv_func_printf_directive_n" in
29 case "$gl_cv_func_printf_positions" in
31 case "$gl_cv_func_snprintf_truncation_c99" in
33 case "$gl_cv_func_snprintf_retval_c99" in
35 case "$gl_cv_func_snprintf_directive_n" in
37 # snprintf exists and is already POSIX
39 gl_cv_func_snprintf_posix=yes
57 if test $gl_cv_func_snprintf_posix = no; then
58 gl_PREREQ_VASNPRINTF_DIRECTIVE_A
59 gl_PREREQ_VASNPRINTF_DIRECTIVE_F