Thanks Morris,
>Or maybe you somehow got non-breaking-space instead of space, eg
>from copy/paste. Please try typing the command by hand.
>I don't know how to explain that result, unless you actually typed:
>LC_ALL="C cpp -E -dM -x c++ /dev/null"
>(in quotes)
Nothing change. I tried typing by hand, with "...", . I will try again tomorrow .
>In any case, it looks like the problem is with your system, not with Emacs.
>I would suggest asking for help on a Fedora users list.
I will send e-mail to fedora groups.
>In any case, it looks like the problem is with your system, not with Emacs.
>I would suggest asking for help on a Fedora users list.
maybe.... yes, it look like problem with my system. I have fedora 25 guest virtual machine vbox- 5.1.18 r114002. Host is win 8.1.
When I wanna clean up somethings, all things always go wrong. I'm unlucky man. I like Gnu/linux, free softwares, I don't give up! :)