tech-pkg@ discussion on how to better declare need for C++11.
This is necessary due to libsigc++ headers and will probably be
required for everything that depends on gtkmm{,3}.
(there are ~25 or so such packages in pkgsrc the I have not yet tested)
Do it for all packages that
* mention perl, or
* have a directory name starting with p5-*, or
* depend on a package starting with p5-
like last time, for 5.18, where this didn't lead to complaints.
Let me know if you have any this time.
a) refer 'perl' in their Makefile, or
b) have a directory name of p5-*, or
c) have any dependency on any p5-* package
Like last time, where this caused no complaints.