DWT information, requirements and installation
jessekphillips at gmail.com
Fri Feb 15 19:48:36 PST 2008
On Fri, 15 Feb 2008 15:35:00 -0500, Ty Tower wrote:
> Just to demonstrate ,this is the output I get trying to compile doobs
> example at the start of this thread. So surely the output suggests whats
> missing or what the compiler is looking for? I am not familiar with the
> inner workings and what the undefined references mean but surely the
> command line out would tell someone experienced whether it is getting it
> right? "gcc main.o ........... -lm "
> [tytower at linuxbox dwt-linux]$ dmd MyStuff/main.d gcc main.o -o main -m32
> -Xlinker -L/usr/bin/../lib -ltango-user-dmd -ltango-base-dmd -lpthread
> -lm main.o:(.data+0x38): undefined reference to
> `_D3dwt7widgets7Display12__ModuleInfoZ' main.o:(.data+0x3c): undefined
> reference to `_D3dwt7widgets5Shell12__ModuleInfoZ' main.o: In function
> MyStuff/main.d:(.text._Dmain+0x8): undefined reference to
> MyStuff/main.d:(.text._Dmain+0x13): undefined reference to
> MyStuff/main.d:(.text._Dmain+0x1b): undefined reference to
> MyStuff/main.d:(.text._Dmain+0x29): undefined reference to
> collect2: ld returned 1 exit status
> --- errorlevel 1
I will begin by telling you what this output is telling you, after which
I will respond to your other post, and then go into explanations for both
me and "my colleagues" as to what brought us to our suggestions and
assumptions we made during suggestion.
Your current compilation is telling you that it was not able to find the
dwt libraries for witch to compile. The error has come about because you
called dmd without providing the appropriate linker flags that will tell
gcc what to link in. It also says that you have an older version of
Tango, you need to use the SVN repository version now which does not use -
"The 'weird' data I give is the output of the terminal in case anybody
really wants to think about it and try to suggest fixes."
The weird information that was referred is not compiler output, but
inconsistent information that you provide. IE Frank gave you instrutions
$ dsss build dwt
$ dsss install dwt
in dwt-samples dir do:
$ dsss build dwtexamples/helloworld/HelloWorld1.d
got this back on both "dsss build" and "dsss build
This leads us to conclude you missed step 2 $ dsss install dwt
In a later post you write, "I have also found the file /dsss/rebuild.conf/
default and changed its contents to 'dmd-linux-tango'"
This is odd as I know of no such file and am unable to find it. Also it
would suggest that dsss is installed incorrectly, it should not be in the
root directory (and will not install itself there). However in either
case, dsss seems to be working an thus this can be elegantly ignored.
"I use dmd to compile the programs I am writing or at least trying to
write. You and your colleagues suggest getting and using dsss and do not
provide a traditional linux makefile for a normal make,install approach"
There is a good reason we suggest dsss over creating a makefile.
Makefiles are blotted, not platform independent. DSSS does a great job of
automation, but still needs some kinks worked out. Lastly using dmd will
fail unless you successfully add all the needed linker commands.
"There is a major problem with your examples project which I am trying to
isolate . It is not my download and install ,they have gone flawlessly .
The problem is in the dwt-examples which won't compile. Thats the only
area left which I have not achieved."
The examples compile for other users of the project. This leads to only
one conclusion, your system has not been fully configured. In fact, most
of your posted problems aren't even compiler errors, but instead linker
errors. These linker errors are caused from not finding the needed files,
ie the files are not installed correctly.
"Jesses post indicates he had not even read the originating post above. So
he went straight for my post by name . That tells me whats going on."
This is true I did not read doob's installation instructions my install
already worked. I also apparently did not look over the output as closely
as I should have, but instead I when with the command you called. Had I
looked closer I would have been able to point out the clues of incorrect
I would now like to refer back to a previous help of mine where I had
been in another error.
I was saying that the samples worked in linux and did not know what the
imports were for. This was related to a big change in the structure of
Tango that I had not yet been introduced to. This has not only led to me
not following some of the errors, but after having resolved the problems
on my computer I have gotten a better idea of what should happen during
compile and what shouldn't.
So I would like to recap on what you should try next. Install the latest
svn Tango, this my require uninstalling the current one.
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