On 13 Feb 2017, at 20:27, Matteo Riondato <mat...@freebsd.org> wrote:
>> On Feb 13, 2017, at 1:58 PM, Dimitry Andric <d...@freebsd.org> wrote:
>> On 13 Feb 2017, at 16:53, Matteo Riondato <mat...@freebsd.org> wrote:
>>> When I build world with WITHOUT_GPL_DTC=y in src.conf (complete file after 
>>> the error) I get the following error in stage 1.2: bootstrap tools. This is 
>>> not a recent breakage, I’ve experienced it for a while.
>>> ===> usr.bin/dtc (obj,all,install)
>>> /usr/obj/usr/src/tmp/usr/src/usr.bin/dtc created for /usr/src/usr.bin/dtc
>>> echo dtc: /usr/lib/libc.a /usr/obj/usr/src/tmp/legacy/usr/lib/libegacy.a >> 
>>> .depend
>>> echo dtc: /usr/lib/libc++.a >> .depend
>>> c++  -O2 -pipe -DNDEBUG -MD -MF.depend.dtc.o -MTdtc.o -Qunused-arguments 
>>> -I/usr/obj/usr/src/tmp/legacy/usr/include -std=c++11 -fno-rtti 
>>> -fno-exceptions  -Wno-c++11-extensions -c /usr/src/usr.bin/dtc/dtc.cc -o 
>>> dtc.o
>>> c++  -O2 -pipe -DNDEBUG -MD -MF.depend.input_buffer.o -MTinput_buffer.o 
>>> -Qunused-arguments -I/usr/obj/usr/src/tmp/legacy/usr/include -std=c++11 
>>> -fno-rtti -fno-exceptions  -Wno-c++11-extensions -c 
>>> /usr/src/usr.bin/dtc/input_buffer.cc -o input_buffer.o
>>> /usr/src/usr.bin/dtc/input_buffer.cc:547:53: error: type 'dtc::(anonymous 
>>> namespace)::expression' is not a direct or virtual base of 
>>> 'binary_operator<Precedence, Op>'
>>>      binary_operator(source_location l, const char *) : expression(l) {}
>>>                                                         ^~~~~~~~~~
>> Which FreeBSD version are you running on the host?  I've just tried
>> building head/usr.bin/dtc on 12-CURRENT, 11-STABLE and 10-STABLE, but it
>> all works just fine for me.
> Very interesting. I’m using 12.0-CURRENT #2 r313159.
> I even did two 'make cleandir' in /usr/src and removed /usr/obj/ , and still 
> it does not compile.

I see now, this is because you are using WITHOUT_ASSERT_DEBUG.  This
adds -DNDEBUG to CFLAGS, and apparently you are the first person to hit
this NDEBUG-only code. :)

I committed a fix in r313709.


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