On Mon, 23 Jan 2017 20:18:18 +0100, Dimitry Andric <d...@freebsd.org> wrote:
> On 23 Jan 2017, at 05:32, Jeffrey Bouquet <jbt...@iherebuywisely.com> wrote:
> > ... that may work in /usr/src/sbin for example?
> > make clang=[/usr/ports/lang/??]clang-foo clang+ depend; make; # so that
> > a buildworld is not needed?
> > or that would have to be created as a feature..
> The following appears to work:
> pkg install llvm39
> export CC=/usr/local/bin/clang39
> export CXX=/usr/local/bin/clang++39
> export CPP=/usr/local/bin/clang-cpp
> cd /usr/src/sbin
> make obj
> make depend
> Note that this may pick up the wrong versions of libraries, so do not
> be amazed if stuff blows up.
> Also note that clang in base has a few patches which might not be in the
> port, so you could also run into unexpected bugs in the port.
Works! on 9 out of ten binaries at least.  Even so good from here that
may wish to put it in /usr/src/UPDATING but with an additional reference to how
to find the most likely llvm since that may change over time...
Tested in /usr/src/bin, sbin, usr.sbin, usr.bin...
 some build but do not install 'no such file or directory' so maybe did not
Made it into a .sh or .zsh that placed in another location and then run from the
location that is being reinstalled, /fsck_ffs/ for example... with the latter
as the $1 coded into the script, as the full path on the command line as a
parameter. May need improvement... or more coding...
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