Re: [Torcs-users] Bug-report regarding torcs-1.3.4 installation and robotgen -- including fixes

Hi again

Ok, I found something interestin, I will dig further into this later:
from http://ubuntuforums.org/showthread.php?t=1525607

"the reason is the linker option --as-needed which is default since 
ubuntu 11.10"

This might explain the difference to other systems, but I have to look 
closer.

Best regards

Bernhard

On 01/09/2013 09:35 AM, Jasper van de Ven wrote:
> Hello,
> while preparing a system in order to develop a robot for torcs, I came
> across two minor problems.
> I am using a Ubuntu 12.10 64Bit system and the "For Linux and FreeBSD
> from "all-in-one" Source Package".
>
> The first is a small bug in the make-setup of torcs-1.3.4. When
> executing the 'make' command I got a linker error stating:
>
> g++ main.o linuxspec.o -L/home/<...>/torcs-1.3.4/export/lib  -lopenal
> -lalut -lvorbisfile -L/usr/lib  -lracescreens -lrobottools -lclient
> -lconfscreens -ltgf -ltgfclient -ltxml -lplibul -lraceengine
> -lmusicplayer -llearning -lplibjs -lplibssgaux -lplibssg -lplibsm
> -lplibsl -lplibsg -lplibul -lglut -lGLU -lGL -lpng -lz -ldl -lXrandr
> -lXrender -lXxf86vm -lXmu -lXi -lXt -lSM -lICE -lXext -lX11 -lm  -o
> torcs-bin
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmShowStandings(void*, RmInfo*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmDriversSelect(void*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmPitMenuStart(CarElt*, void*, void (*)(void*))'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RtTrackGetSeg(tTrkLocPos*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmLoadingScreenSetText(char const*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RtTrackHeightL(tTrkLocPos*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmFourStateScreen(char const*, char const*, char const*, void*, char
> const*, char const*, void*, char const*, char const*, void*, char
> const*, char const*, void*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmRaceParamMenu(void*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmShowResults(void*, RmInfo*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmTriStateScreen(char const*, char const*, char const*, void*, char
> const*, char const*, void*, char const*, char const*, void*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RtTrackLocal2Global(tTrkLocPos*, float*, float*, int)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmFileSelect(void*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmTrackSelect(void*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmLoadingScreenStart(char const*, char const*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmDisplayStartRace(RmInfo*, void*, void*)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RtTrackGetWidth(trackSeg*, float)'
> /home/<...>/torcs-1.3.4/export/lib/libraceengine.so: undefined reference
> to `RmShutdownLoadingScreen()'
> collect2: error: ld returned 1 exit status
> make[3]: *** [torcs-bin] Error 1
>
> I was able to trace the error to a pair of missing linker option
> (-lracescreens -lrobottools) while linking libraceengine.so. I fixed it
> by adding the required options to the local Makfile and adding the
> general call to the Make-default.mk template.
>
> The second bug I encountered addresses the robotgen script. Simply using
> the provided script, directly compiling and installing the freshly and
> unchanged driver, starting torcs and clicking "Race -> Quick Race ->
> Configure Race" leads to a segmentation fault. For that matter all race
> types have this problem as it is related to loading the freshly
> generated robot. I was able to find the error in the <Robotname>.cpp
> file where the name and description are set. I fixed the problem by
> adding a string-duplication command to the robotgen script.
>
> All proposed fixes can be found in the attached patch. It can be easily
> applied (supposed one is using a Linux system) by executing the command
> 'patch -p1 -i torcs-1.3.4-fixes.patch' in the base folder. The patch was
> generated against a unchanged version of the "For Linux and FreeBSD from
> "all-in-one" Source Package". Hope this helps anyone experiencing
> similar difficulties.
> Greetings
> Jasper
>
>
>
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