# vasnprintf.m4 serial 31

dnl Copyright (C) 2002-2004, 2006-2010 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_VASNPRINTF],

[

AC_CHECK_FUNCS_ONCE([vasnprintf])

if test $ac_cv_func_vasnprintf = no; then

gl_REPLACE_VASNPRINTF

fi

])

AC_DEFUN([gl_REPLACE_VASNPRINTF],

[

AC_CHECK_FUNCS_ONCE([vasnprintf])

AC_LIBOBJ([vasnprintf])

AC_LIBOBJ([printf-args])

AC_LIBOBJ([printf-parse])

AC_LIBOBJ([asnprintf])

if test $ac_cv_func_vasnprintf = yes; then

AC_DEFINE([REPLACE_VASNPRINTF], [1],

[Define if vasnprintf exists but is overridden by gnulib.])

fi

gl_PREREQ_PRINTF_ARGS

gl_PREREQ_PRINTF_PARSE

gl_PREREQ_VASNPRINTF

gl_PREREQ_ASNPRINTF

])

# Prequisites of lib/printf-args.h, lib/printf-args.c.

AC_DEFUN([gl_PREREQ_PRINTF_ARGS],

[

AC_REQUIRE([AC_TYPE_LONG_LONG_INT])

AC_REQUIRE([gt_TYPE_WCHAR_T])

AC_REQUIRE([gt_TYPE_WINT_T])

])

# Prequisites of lib/printf-parse.h, lib/printf-parse.c.

AC_DEFUN([gl_PREREQ_PRINTF_PARSE],

[

AC_REQUIRE([AC_TYPE_LONG_LONG_INT])

AC_REQUIRE([gt_TYPE_WCHAR_T])

AC_REQUIRE([gt_TYPE_WINT_T])

AC_REQUIRE([AC_TYPE_SIZE_T])

AC_CHECK_TYPE([ptrdiff_t], ,

[AC_DEFINE([ptrdiff_t], [long],

[Define as the type of the result of subtracting two pointers, if the system doesn't define it.])

])

AC_REQUIRE([gt_AC_TYPE_INTMAX_T])

])

# Prerequisites of lib/vasnprintf.c.

AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF],

[

AC_REQUIRE([AC_C_INLINE])

AC_REQUIRE([AC_FUNC_ALLOCA])

AC_REQUIRE([AC_TYPE_LONG_LONG_INT])

AC_REQUIRE([gt_TYPE_WCHAR_T])

AC_REQUIRE([gt_TYPE_WINT_T])

AC_CHECK_FUNCS([snprintf strnlen wcslen wcsnlen mbrtowc wcrtomb])

dnl Use the _snprintf function only if it is declared (because on NetBSD it

dnl is defined as a weak alias of snprintf; we prefer to use the latter).

AC_CHECK_DECLS([_snprintf], , , [#include <stdio.h>])

dnl We can avoid a lot of code by assuming that snprintf's return value

dnl conforms to ISO C99. So check that.

AC_REQUIRE([gl_SNPRINTF_RETVAL_C99])

case "$gl_cv_func_snprintf_retval_c99" in

*yes)

AC_DEFINE([HAVE_SNPRINTF_RETVAL_C99], [1],

[Define if the return value of the snprintf function is the number of

of bytes (excluding the terminating NUL) that would have been produced

if the buffer had been large enough.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting 'long double'

# arguments.

AC_DEFUN_ONCE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE],

[

AC_REQUIRE([gl_PRINTF_LONG_DOUBLE])

case "$gl_cv_func_printf_long_double" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1],

[Define if the vasnprintf implementation needs special code for

'long double' arguments.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'double'

# arguments.

AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE],

[

AC_REQUIRE([gl_PRINTF_INFINITE])

case "$gl_cv_func_printf_infinite" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_INFINITE_DOUBLE], [1],

[Define if the vasnprintf implementation needs special code for

infinite 'double' arguments.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting infinite 'long double'

# arguments.

AC_DEFUN([gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE],

[

AC_REQUIRE([gl_PRINTF_INFINITE_LONG_DOUBLE])

dnl There is no need to set NEED_PRINTF_INFINITE_LONG_DOUBLE if

dnl NEED_PRINTF_LONG_DOUBLE is already set.

AC_REQUIRE([gl_PREREQ_VASNPRINTF_LONG_DOUBLE])

case "$gl_cv_func_printf_long_double" in

*yes)

case "$gl_cv_func_printf_infinite_long_double" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_INFINITE_LONG_DOUBLE], [1],

[Define if the vasnprintf implementation needs special code for

infinite 'long double' arguments.])

;;

esac

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting the 'a' directive.

AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_A],

[

AC_REQUIRE([gl_PRINTF_DIRECTIVE_A])

case "$gl_cv_func_printf_directive_a" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_DIRECTIVE_A], [1],

[Define if the vasnprintf implementation needs special code for

the 'a' and 'A' directives.])

AC_CHECK_FUNCS([nl_langinfo])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting the 'F' directive.

AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_F],

[

AC_REQUIRE([gl_PRINTF_DIRECTIVE_F])

case "$gl_cv_func_printf_directive_f" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_DIRECTIVE_F], [1],

[Define if the vasnprintf implementation needs special code for

the 'F' directive.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting the 'ls' directive.

AC_DEFUN([gl_PREREQ_VASNPRINTF_DIRECTIVE_LS],

[

AC_REQUIRE([gl_PRINTF_DIRECTIVE_LS])

case "$gl_cv_func_printf_directive_ls" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_DIRECTIVE_LS], [1],

[Define if the vasnprintf implementation needs special code for

the 'ls' directive.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting the ' flag.

AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_GROUPING],

[

AC_REQUIRE([gl_PRINTF_FLAG_GROUPING])

case "$gl_cv_func_printf_flag_grouping" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_FLAG_GROUPING], [1],

[Define if the vasnprintf implementation needs special code for the

' flag.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting the '-' flag.

AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST],

[

AC_REQUIRE([gl_PRINTF_FLAG_LEFTADJUST])

case "$gl_cv_func_printf_flag_leftadjust" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_FLAG_LEFTADJUST], [1],

[Define if the vasnprintf implementation needs special code for the

'-' flag.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting the 0 flag.

AC_DEFUN([gl_PREREQ_VASNPRINTF_FLAG_ZERO],

[

AC_REQUIRE([gl_PRINTF_FLAG_ZERO])

case "$gl_cv_func_printf_flag_zero" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_FLAG_ZERO], [1],

[Define if the vasnprintf implementation needs special code for the

0 flag.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for supporting large precisions.

AC_DEFUN([gl_PREREQ_VASNPRINTF_PRECISION],

[

AC_REQUIRE([gl_PRINTF_PRECISION])

case "$gl_cv_func_printf_precision" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_UNBOUNDED_PRECISION], [1],

[Define if the vasnprintf implementation needs special code for

supporting large precisions without arbitrary bounds.])

AC_DEFINE([NEED_PRINTF_DOUBLE], [1],

[Define if the vasnprintf implementation needs special code for

'double' arguments.])

AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1],

[Define if the vasnprintf implementation needs special code for

'long double' arguments.])

;;

esac

])

# Extra prerequisites of lib/vasnprintf.c for surviving out-of-memory

# conditions.

AC_DEFUN([gl_PREREQ_VASNPRINTF_ENOMEM],

[

AC_REQUIRE([gl_PRINTF_ENOMEM])

case "$gl_cv_func_printf_enomem" in

*yes)

;;

*)

AC_DEFINE([NEED_PRINTF_ENOMEM], [1],

[Define if the vasnprintf implementation needs special code for

surviving out-of-memory conditions.])

AC_DEFINE([NEED_PRINTF_DOUBLE], [1],

[Define if the vasnprintf implementation needs special code for

'double' arguments.])

AC_DEFINE([NEED_PRINTF_LONG_DOUBLE], [1],

[Define if the vasnprintf implementation needs special code for

'long double' arguments.])

;;

esac

])

# Prerequisites of lib/vasnprintf.c including all extras for POSIX compliance.

AC_DEFUN([gl_PREREQ_VASNPRINTF_WITH_EXTRAS],

[

AC_REQUIRE([gl_PREREQ_VASNPRINTF])

gl_PREREQ_VASNPRINTF_LONG_DOUBLE

gl_PREREQ_VASNPRINTF_INFINITE_DOUBLE

gl_PREREQ_VASNPRINTF_INFINITE_LONG_DOUBLE

gl_PREREQ_VASNPRINTF_DIRECTIVE_A

gl_PREREQ_VASNPRINTF_DIRECTIVE_F

gl_PREREQ_VASNPRINTF_DIRECTIVE_LS

gl_PREREQ_VASNPRINTF_FLAG_GROUPING

gl_PREREQ_VASNPRINTF_FLAG_LEFTADJUST

gl_PREREQ_VASNPRINTF_FLAG_ZERO

gl_PREREQ_VASNPRINTF_PRECISION

gl_PREREQ_VASNPRINTF_ENOMEM

])

# Prerequisites of lib/asnprintf.c.

AC_DEFUN([gl_PREREQ_ASNPRINTF],

[

])