-#serial 1
+#serial 2
dnl From Paul Eggert.
[
AC_CACHE_CHECK([whether backslash-a works in strings], ac_cv_c_backslash_a,
[AC_TRY_COMPILE([],
- [
- changequote(, ) dnl
+ changequote(<<, >>)dnl
+ <<
#if '\a' == 'a'
syntax error;
#endif
char buf['\a' == 'a' ? -1 : 1];
buf[0] = '\a';
return buf[0] != "\a"[0];
- changequote([, ])dnl
- ],
+ >>,
+ changequote([, ])dnl
ac_cv_c_backslash_a=yes,
ac_cv_c_backslash_a=no)])
if test $ac_cv_c_backslash_a = yes; then