On 21.11.2016 18:16, Rainer Orth wrote:
> Hi Matthias,
> 
>> ahh, didn't see that :-/ Now fixed, is this clearer now?
>>
>> The options @option{--with-target-bdw-gc-include} and
>> @option{--with-target-bdw-gc-lib} must always specified together for
>                                                ^ be 

thanks to all sorting out the documentation issues. Now attaching the updated
diff. Ok to commit?

Matthias

<toplevel>

2016-11-19  Matthias Klose  <doko@ubuntu.com>

        * Makefile.def: Remove reference to boehm-gc target module.
        * configure.ac: Include pkg.m4, check for --with-target-bdw-gc
        options and for the bdw-gc pkg-config module.
        * configure: Regenerate.
        * Makefile.in: Regenerate.

gcc/

2016-11-19  Matthias Klose  <doko@ubuntu.com>

        * doc/install.texi: Document configure options --enable-objc-gc
        and --with-target-bdw-gc.

config/

2016-11-19  Matthias Klose  <doko@ubuntu.com>

        * pkg.m4: New file.

libobjc/

2016-11-19  Matthias Klose  <doko@ubuntu.com>

        * configure.ac (--enable-objc-gc): Allow to configure with a
        system provided boehm-gc.
        * configure: Regenerate.
        * Makefile.in (OBJC_BOEHM_GC_LIBS): Get value from configure.
        * gc.c: Include system bdw-gc headers.
        * memory.c: Likewise
        * objects.c: Likewise

boehm-gc/

2016-11-19  Matthias Klose  <doko@ubuntu.com>

        Remove