-# vasnprintf.m4 serial 32
-dnl Copyright (C) 2002-2004, 2006-2011 Free Software Foundation, Inc.
+# vasnprintf.m4 serial 36
+dnl Copyright (C) 2002-2004, 2006-2014 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.
gl_PREREQ_ASNPRINTF
])
-# Prequisites of lib/printf-args.h, lib/printf-args.c.
+# Prerequisites 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_WINT_T])
])
-# Prequisites of lib/printf-parse.h, lib/printf-parse.c.
+# Prerequisites of lib/printf-parse.h, lib/printf-parse.c.
AC_DEFUN([gl_PREREQ_PRINTF_PARSE],
[
AC_REQUIRE([gl_FEATURES_H])
# 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_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>])
+ AC_CHECK_DECLS([_snprintf], , , [[#include <stdio.h>]])
+ dnl Knowing DBL_EXPBIT0_WORD and DBL_EXPBIT0_BIT enables an optimization
+ dnl in the code for NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE.
+ AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION])
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])