spurious change regenerating gdb/config.in?

Pedro Alves
2016-10-19T00:10:07Z

If I run autoheader on the gdb/ dir, I see this spurious
change come out:

diff --git c/gdb/config.in w/gdb/config.in
index c82a5b4..3790d10 100644
--- c/gdb/config.in
+++ w/gdb/config.in
@@ -453,12 +453,12 @@
/* Define to 1 if your system has struct lwp. */
#undef HAVE_STRUCT_LWP

-/* Define to 1 if `struct ptrace_lwpinfo' is a member of `pl_tdname'. */
-#undef HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME
-
/* Define to 1 if `struct ptrace_lwpinfo' is a member of `pl_syscall_code'. */
#undef HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE

+/* Define to 1 if `struct ptrace_lwpinfo' is a member of `pl_tdname'. */
+#undef HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME
+
/* Define to 1 if your system has struct reg in <machine/reg.h>. */
#undef HAVE_STRUCT_REG

This is with pristine FSF autoconf 2.64. I suspect this is
just because the config.in in master was generated by some
other autoconf version. To confirm, does anyone else
see this?

Thanks,
Pedro Alves