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# vsnprintf-posix.m4 serial 2
dnl Copyright (C) 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_VSNPRINTF_POSIX],
[
AC_REQUIRE([gl_EOVERFLOW])
AC_REQUIRE([gl_PRINTF_SIZES_C99])
AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])
AC_REQUIRE([gl_PRINTF_DIRECTIVE_N])
AC_REQUIRE([gl_PRINTF_POSITIONS])
gl_cv_func_vsnprintf_posix=no
AC_CHECK_FUNCS([vsnprintf])
if test $ac_cv_func_vsnprintf = yes; then
dnl Assume that if vsnprintf() exists, snprintf() also exists.
gl_SNPRINTF_TRUNCATION_C99
gl_SNPRINTF_RETVAL_C99
gl_SNPRINTF_DIRECTIVE_N
case "$gl_cv_func_printf_sizes_c99" in
*yes)
case "$gl_cv_func_printf_directive_a" in
*yes)
case "$gl_cv_func_printf_directive_n" in
*yes)
case "$gl_cv_func_printf_positions" in
*yes)
case "$gl_cv_func_snprintf_truncation_c99" in
*yes)
case "$gl_cv_func_snprintf_retval_c99" in
*yes)
case "$gl_cv_func_snprintf_directive_n" in
*yes)
# vsnprintf exists and is already POSIX
# compliant.
gl_cv_func_vsnprintf_posix=yes
;;
esac
;;
esac
;;
esac
;;
esac
;;
esac
;;
esac
;;
esac
fi
if test $gl_cv_func_vsnprintf_posix = no; then
gl_PREREQ_VASNPRINTF_DIRECTIVE_A
gl_REPLACE_VASNPRINTF
gl_REPLACE_VSNPRINTF
fi
])
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