1 # snprintf-posix.m4 serial 2
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_N])
13 AC_REQUIRE([gl_PRINTF_POSITIONS])
14 gl_cv_func_snprintf_posix=no
15 AC_CHECK_FUNCS([snprintf])
16 if test $ac_cv_func_snprintf = yes; then
17 gl_SNPRINTF_TRUNCATION_C99
18 gl_SNPRINTF_RETVAL_C99
19 gl_SNPRINTF_DIRECTIVE_N
20 case "$gl_cv_func_printf_sizes_c99" in
22 case "$gl_cv_func_printf_directive_a" in
24 case "$gl_cv_func_printf_directive_n" in
26 case "$gl_cv_func_printf_positions" in
28 case "$gl_cv_func_snprintf_truncation_c99" in
30 case "$gl_cv_func_snprintf_retval_c99" in
32 case "$gl_cv_func_snprintf_directive_n" in
34 # snprintf exists and is already POSIX
36 gl_cv_func_snprintf_posix=yes
52 if test $gl_cv_func_snprintf_posix = no; then
53 gl_PREREQ_VASNPRINTF_DIRECTIVE_A