svn commit: r300770 - in head: . contrib/libc++/include contrib/libc++/include/experimental contrib/libc++/include/ext contrib/libc++/src contrib/libc++/src/include contrib/libc++/src/support lib/l...

[Alan Somers]

On Fri, May 27, 2016 at 9:28 AM, Dimitry Andric <dim at freebsd.org> wrote:
> On 27 May 2016, at 16:49, Alan Somers <asomers at freebsd.org> wrote:
>>
>> I think this change is breaking the build of C++ applications.  Below
>> is a snippet of my amd64 buildworld, with the changes in D6564.  it
>> built fine a few days ago.
>>
>> ===> lib/libdevdctl (all)
>> In file included from /home/asomers/freebsd/head/lib/libdevdctl/consumer.cc:50:
>> In file included from
>> /scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/list:173:
>> In file included from
>> /scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/memory:599:
>> In file included from
>> /scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/type_traits:363:
>> /scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/cstddef:43:15:
>> fatal error: 'stddef.h' file not found
>> #include_next <stddef.h>
>>              ^
>> 1 error generated.
>> --- consumer.o ---
>> *** [consumer.o] Error code 1
>
> It shouldn't, it passed a full make universe.  Do you have any special
> settings in either make.conf or src.conf?  Or something other about your
> build environment that is non-standard?
>
> -Dimitry

Ahh, but when you ran "make universe" there were not yet any C++
things in lib/.  My patch adds a C++ library, and it fails when
building the 32-bit version.  Here's the actual command that failed.
I don't know why it failed, because
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/stddef.h
_does_ exist.

c++ -m32 -DCOMPAT_32BIT -march=i686 -mmmx -msse -msse2
-L/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/lib32
--sysroot=/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32
-B/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/lib32
-isystem /scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include
  -O2 -pipe -MD -MF.depend.consumer.o -MTconsumer.o
-fstack-protector-strong -Wsystem-headers -Werror -Wall
-Wno-format-y2k -W -Wno-unused-parameter -Wpointer-arith
-Wno-uninitialized -Wno-empty-body -Wno-string-plus-int
-Wno-unused-const-variable -Wno-tautological-compare -Wno-unused-value
-Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion
-Wno-unused-local-typedef -Qunused-arguments  -Wno-c++11-extensions
-c /home/asomers/freebsd/head/lib/libdevdctl/consumer.cc -o consumer.o
...
--- all_subdir_lib/libdevdctl ---
In file included from /home/asomers/freebsd/head/lib/libdevdctl/event.cc:55:
In file included from
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/iostream:38:
In file included from
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/ios:216:
In file included from
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/__locale:15:
In file included from
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/string:439:
In file included from
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/algorithm:624:
In file included from
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/initializer_list:47:
/scratch/tmp/asomers/obj/home/asomers/freebsd/head/lib32/usr/include/c++/v1/cstddef:43:15:
fatal error: 'stddef.h' file not found
#include_next <stddef.h>
              ^

-Alan