buildworld, buildkernel, and devel/cache

[Warren Block]

On Mon, 26 Jan 2015, Scott Bennett wrote:

> On Mon., 27 January 2015, Warren Block <wblock at wonkity.com> wrote:
>> On Mon, 26 Jan 2015, Scott Bennett wrote:
>>>     On Mon, 26 Jan 2015 10:24:22 +0200 Ivan Klymenko <fidaj at ukr.net> wrote:
>>>>> In /root/.profile I have
>>>>>
>>>>> CCACHE_DIR=/buildwork/ccache
>>>>> export PATH=/usr/local/libexec/ccache:$PATH
>>>>> export CCACHE_PATH=/usr/bin:/usr/local/bin
>>>>>
>>>>> In /root/.cshrc.extensions, a file I source from /root/.cshrc, I have
>>>>>
>>>>> setenv CCACHE_DIR /buildwork/ccache
>>>>> setenv PATH /usr/local/libexec/ccache:$PATH
>>>>> setenv CCACHE_PATH /usr/bin:/usr/local/bin
>>>>>
>>>> This file is in some ways you can
>>>> help /usr/local/share/doc/ccache/ccache-howto-freebsd.txt
>>>
>>>     I had read that and hadn't seen how that would work, but after seeing
>>> your reply, I tried adding the three lines to /etc/make.conf and got errors,
>>> like I had expected:
>>>
>>> make: "/etc/make.conf" line 18: Missing dependency operator
>>> make: RE substitution error: repetition-operator operand invalid
>>> make: Unclosed substitution for CXX (, missing)
>>> make: "/etc/make.conf" line 20: Undefined variable "${CXX:C,^c++,/usr/local/libexec/ccache/world/c++,1}"
>>> make: Fatal errors encountered -- cannot continue
>>> make: stopped in /usr/src
>>>
>>>     So my question remains.  Please respond if you have something that
>>> you have tried and know works.
>>>     Thanks in advance.
>>
>> They are shell variables, so set them in the shell, .cshrc or the two
>> alternatives mentioned above.
>
>     Well, the instructions in that file say,
>
> 	To use ccache for base add the following to /etc/make.conf.   You
> 	can  replace  cc and c++ with the compilers of your choice.  (re-
> 	member that only GCC and Clang can build world and kernel)
>
> 	&&                     exists(/usr/local/libexec/ccache/world/cc)
> 	CC:=${CC:C,^cc,/usr/local/libexec/ccache/world/cc,1}
> 	CXX:=${CXX:C,^c++,/usr/local/libexec/ccache/world/c++,1}
>
> which was why I had put those three lines into /etc/make.conf.  On your
> suggestion, I moved them to /root/.profile and /root/.cshrc.extensions,
> with the results that in the csh case, I got (as expected) the
>
> 	Badly placed ()'s.
>
> error.  sh gave no errors, so I started a buildworld, which has been running
> for a little while already, but with no evidence to be found (e.g., no
> counters increasing in "ccache -s" output, no ccache seen running in top,
> the only instances of ccache in lastcomm(1) output are the ones I entered
> manually to check the counters) that ccache is being used by buildworld at
> all.  I have not yet tried any ports updates to see whether addition of
> those three lines to .profile had any adverse effect upon that process.
>     Thanks for the try, though.

I might have missed something, so let's back up.  Shell variables need 
to be set, and entries in make.conf need to be added.  Both are needed.