[Coco] Which Coco Emulator for Raspberry Pi?

[Bob Devries]

Hi Chris,

I notice that that command line does not include libpthread. Since 
sdl-config --libs does not mention it either, maybe a change needs to be 
made to include sdl-config --static-libs

Regards, Bob Devries
Dalby, QLD, Australia

On 18/10/2014 10:39 AM, Christopher R. Hawks wrote:
> On Sat, 18 Oct 2014 09:46:12 +1000
> Bob Devries <devries.bob at gmail.com> wrote:
>
>> The gcc link command line is:
>>
>> gcc -Wl,--warn-common -s  obj/sdl/mess/version.o
>> obj/sdl/mess/mess/messdriv.o obj/sdl/mess/mess/coco.a
>> obj/sdl/mess/mess/mc10.a obj/sdl/mess/mess/dgn_beta.a
>> obj/sdl/mess/mess/shared.a obj/sdl/mess/libosd.a
>> obj/sdl/mess/libemu.a obj/sdl/mess/libcpu.a obj/sdl/mess/libsound.a
>> obj/sdl/mess/libutil.a obj/sdl/mess/libocore.a  -lexpat -lz -lm
>> `sdl-config --libs`  -lX11 -lXinerama -L/usr/X11/lib -L/usr/X11R6/lib
>> -L/usr/openwin/lib -o mess
>>
>> @Tormod: Sorry, I somehow lost your email about this. Can you resend?
>>
>> Regards, Bob Devries
>> Dalby, QLD, Australia
>>
>> On 17/10/2014 9:17 PM, Christopher R. Hawks wrote:
>>> On Fri, 17 Oct 2014 10:29:34 +0200
>>> Tormod Volden <lists.tormod at gmail.com> wrote:
>>>
>>>> On Fri, Oct 17, 2014 at 4:17 AM, Bob Devries wrote:
>>>>> Thanks, Chris.
>>>>>
>>>>> I cleared out all the old copies of mess on my BANANA PI (note,
>>>>> not Raspberry Pi, but should work the same) and tried to compile
>>>>> the version you linked to.
>>>>>
>>>>> Sadly, it failed in the link stage with the following error:
>>>>>
>>>>> /usr/bin/ld: obj/sdl/mess/libocore.a(sdlsync.o): undefined
>>>>> reference to symbol 'pthread_join@@GLIBC_2.4'
>>>>> //lib/arm-linux-gnueabihf/libpthread.so.0:error adding symbols:
>>>>> DSO missing from command line
>>>> Recent GCC versions seem to be more picky on the ordering of object
>>>> files and libraries on the linking command line. Check the printed
>>>> gcc command lines to see if -lpthread is towards the end of the
>>>> line. To fix this you will need to find the makefile (I assume the
>>>> build process is using make?) where the linking command is built
>>>> up, e.g. "$(LD) something". The list of libraries might be
>>>> contained in a LIBS or LDFLAGS variable.
>>>>
>>>> If you pastebin the build log it would be easy to see if this
>>>> could be the issue. Especially the command line generating the
>>>> error message would be useful.
>>>>
>>>>> I do have libpthread.so
>>>>> at: /usr/lib/arm-linux-gnueabihf/libpthread.so
>>>>>
>>>>> This is on LUbuntu 14.04 kernel 3.4.90 and GCC 4.8
>>>> The gcc version might be important. The kernel you are running does
>>>> not matter, only the kernel headers would matter if you were
>>>> building kernel modules. I am just saying that for clarification,
>>>> if in doubt, rather provide more information than less.
>>>>
>>>> Regards,
>>>> Tormod
>>>>
>>> 	libpthread should be included by the 'sdl-config --libs' in
>>> the link commandline. 'make -n' will list all the commands, but,
>>> not run them.
>>>
>>> Bob:
>>> 	What does the command 'sdl-config --libs' print on the Pi
>>> command line??
>>>
>>> 	Should be something like '-L/usr/lib -Wl,-rpath,/usr/lib
>>> -lSDL -lpthread'
>>>
>>>
>>> Christopher R. Hawks
>>> HAWKSoft
>>
> Bob:
>
> 	All the lines are the same for me. Iwas on my 'real' computer
> when I checked the sdl-config (I thought they would be the same.)
>
> sdl-config --version is 1.2.15
> sdl-config --libs is    -L/usr/lib/arm-linux-gnueabihf -lSDL
> echo Linking mess...
> gcc -Wl,--warn-common -s  obj/sdl/mess/version.o
> obj/sdl/mess/mess/messdriv.o obj/sdl/mess/mess/coco.a
> obj/sdl/mess/mess/mc10.a obj/sdl/mess/mess/dgn_beta.a
> obj/sdl/mess/mess/shared.a obj/sdl/mess/libosd.a obj/sdl/mess/libemu.a
> obj/sdl/mess/libcpu.a obj/sdl/mess/libsound.a obj/sdl/mess/libutil.a
> obj/sdl/mess/libocore.a  -lexpat -lz -lm `sdl-config --libs`  -lX11
> -lXinerama -L/usr/X11/lib -L/usr/X11R6/lib -L/usr/openwin/lib -o mess
>
> 	All look the same. I'm compiling it now on my Pi. Maybe a tool
> update broke it.
>
>
>
> Christopher R. Hawks
> HAWKSoft