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trader/m4/limits-h.m4
John Zaitseff 304269717c Update all auto-generated files
These files have been created by running ./build-aux/bootstrap with
Gnulib as at commit 5e0faf88718e9329e44c773039166c7dbf3ca57c (with a date
stamp of Fri May 19 19:27:51 2017 +0200), Autoconf 2.69, Automake 1.15 and
Gettext 0.19.8.1.
2017-05-20 13:35:14 +10:00

32 lines
1.0 KiB
Plaintext

dnl Check whether limits.h has needed features.
dnl Copyright 2016-2017 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.
dnl From Paul Eggert.
AC_DEFUN_ONCE([gl_LIMITS_H],
[
gl_CHECK_NEXT_HEADERS([limits.h])
AC_CACHE_CHECK([whether limits.h has ULLONG_WIDTH etc.],
[gl_cv_header_limits_width],
[AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[#ifndef __STDC_WANT_IEC_60559_BFP_EXT__
#define __STDC_WANT_IEC_60559_BFP_EXT__ 1
#endif
#include <limits.h>
int ullw = ULLONG_WIDTH;]])],
[gl_cv_header_limits_width=yes],
[gl_cv_header_limits_width=no])])
if test "$gl_cv_header_limits_width" = yes; then
LIMITS_H=
else
LIMITS_H=limits.h
fi
AC_SUBST([LIMITS_H])
AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"])
])