# c-bs-a.m4 serial 4 (fileutils-4.1.3) dnl Copyright (C) 2000-2002 Free Software Foundation, Inc. dnl This file is free software, distributed under the terms of the GNU dnl General Public License. As a special exception to the GNU General dnl Public License, this file may be distributed as part of a program dnl that contains a configuration script generated by Autoconf, under dnl the same distribution terms as the rest of that program. dnl From Paul Eggert. AC_DEFUN([AC_C_BACKSLASH_A], [ AC_CACHE_CHECK([whether backslash-a works in strings], ac_cv_c_backslash_a, [AC_TRY_COMPILE([], [ #if '\a' == 'a' syntax error; #endif char buf['\a' == 'a' ? -1 : 1]; buf[0] = '\a'; return buf[0] != "\a"[0]; ], ac_cv_c_backslash_a=yes, ac_cv_c_backslash_a=no)]) if test $ac_cv_c_backslash_a = yes; then AC_DEFINE(HAVE_C_BACKSLASH_A, 1, [Define if backslash-a works in C strings.]) fi ])