Re: C++17 skeleton with move semantics and std::variant

[Frank Heckenbach]

Hans Åberg wrote:

> >> So, try this:
> >> 
> >> cd /usr/share/bison
> >> sudo patch < /path/to/extra-header-prefix.diff
> >> cd /your/source/dir
> >> rm -f stack.hh position.hh location.hh
> >> make clean
> >> make
> > 
> > I wouldn't do that for two reasons: screwing up the installation, and 
> > security reasons - one should do the changes while not root, and copy them 
> > to the installation location.
> 
> One can though do:
> $ cp -R /usr/local/share/bison/ data
> $ cd data
> $ patch < ../patch-c++.txt
> patching file stack.hh
> Hunk #1 succeeded at 129 (offset -1 lines).
> Hunk #2 succeeded at 145 (offset -1 lines).
> patching file location.cc
> Hunk #1 succeeded at 290 (offset -4 lines).
> Hunk #2 succeeded at 309 (offset -4 lines).
> patching file lalr1.cc
> 
> Followed by (as root)
> # cp c++17.m4 lalr1-c++17.cc stack-c++11.hh variant-c++17.hh 
> /usr/local/share/bison/

Don't forget to copy location.cc back to /usr/local/share/bison/.
As I said, this file is the same between the old (C++03) and new
(C++17) skeletons and therefore not included in my new skeleton.
(You can also copy back stack.hh and lalr1.cc, if you want full
support for extra_header_prefix with the old skeleton, but that's
not required for the C++17 as those two files are overriden by
"-c++1[17]" versions.)

Regards,
Frank