• qwesx (9/20) Mar 25 2010 Looks simlpe enough, but when running "ldc main.d" the following error i...
• Robert Clipsham (6/26) Mar 25 2010 Try this:
• qwesx (5/11) Mar 25 2010 Thank you very much, it works now.
• Robert Clipsham (8/19) Mar 25 2010 The line won't be in there by default, as the tango user library isn't
• Moritz Warning (3/20) Mar 25 2010 Hi,

qwesx <noreply mydomain.org> writes:

Hello!

I just installed LDC on Debian from the repository and tried out to compile a
simple Hello World program:
 import tango.io.Stdout;
 int main(char[][] argv) {
   Stdout("Hello world!");
   return 0;
 }

Looks simlpe enough, but when running "ldc main.d" the following error is
printed:
 main.o: In function `_Dmain':
 main:(.text+0x2a): undefined reference to
`_D5tango2io6Stdout6StdoutC5tango2io6stream6Format20__T12FormatOutputTaZ12FormatOutput'
 main:(.text+0x41): undefined reference to
`_D5tango2io6stream6Format20__T12FormatOutputTaZ12FormatOutput5printMFYC5tango2io6stream6Format20__T12FormatOutputTaZ12FormatOutput'
 main.o:(.rodata+0x18): undefined reference to `_D5tango2io6Stdout8__ModuleZ'

collect2: ld returned 1 exit status
 Error: linking failed:
 status: 1

The files /usr/include/d/tango/io/Stdout.d, /usr/lib/d/libtango-base-ldc.a and
/usr/lib/d/libtango-user-ldc.a exist and are readable. I don't know if that's
important though.

What's wrong here?
Is it my fault?
How can I fix it?

Thanks for your time :)

Robert Clipsham <robert octarineparrot.com> writes:

On 25/03/10 15:02, qwesx wrote:
 Hello!

 I just installed LDC on Debian from the repository and tried out to compile a
simple Hello World program:
 import tango.io.Stdout;
 int main(char[][] argv) {
    Stdout("Hello world!");
    return 0;
 }

 Looks simlpe enough, but when running "ldc main.d" the following error is
printed:
 main.o: In function `_Dmain':
 main:(.text+0x2a): undefined reference to
`_D5tango2io6Stdout6StdoutC5tango2io6stream6Format20__T12FormatOutputTaZ12FormatOutput'
 main:(.text+0x41): undefined reference to
`_D5tango2io6stream6Format20__T12FormatOutputTaZ12FormatOutput5printMFYC5tango2io6stream6Format20__T12FormatOutputTaZ12FormatOutput'
 main.o:(.rodata+0x18): undefined reference to `_D5tango2io6Stdout8__ModuleZ'

 collect2: ld returned 1 exit status
 Error: linking failed:
 status: 1

 The files /usr/include/d/tango/io/Stdout.d, /usr/lib/d/libtango-base-ldc.a and
/usr/lib/d/libtango-user-ldc.a exist and are readable. I don't know if that's
important though.

 What's wrong here?
 Is it my fault?
 How can I fix it?

 Thanks for your time :)

Try this:
$ ldc -L-L/usr/lib/d -L-ltango-base-ldc -L-ltango-user-ldc main.d

If that works you need to make sure these -L's are included in yout 
ldc.conf (I'm not sure where this is in the debian packages, probably 
/etc/ldc.conf, /etc/ldc/ldc.conf or /usr/bin/ldc.conf).

qwesx <noreply mydomain.org> writes:

Robert Clipsham Wrote:

 Try this:
 $ ldc -L-L/usr/lib/d -L-ltango-base-ldc -L-ltango-user-ldc main.d
 
 If that works you need to make sure these -L's are included in yout 
 ldc.conf (I'm not sure where this is in the debian packages, probably 
 /etc/ldc.conf, /etc/ldc/ldc.conf or /usr/bin/ldc.conf).

Thank you very much, it works now.
-L-L/usr/lib/d and -L-ltango-base-ldc were already in the /etc/ldc.conf, but
-L-ltango-user-ldc was missing.

As I am pretty new to D, is it reasonable that this line was missing or is it
worth a bug-report?

Thank you very much!

Robert Clipsham <robert octarineparrot.com> writes:

On 25/03/10 15:34, qwesx wrote:
 Robert Clipsham Wrote:

 Try this:
 $ ldc -L-L/usr/lib/d -L-ltango-base-ldc -L-ltango-user-ldc main.d

 If that works you need to make sure these -L's are included in yout
 ldc.conf (I'm not sure where this is in the debian packages, probably
 /etc/ldc.conf, /etc/ldc/ldc.conf or /usr/bin/ldc.conf).

 Thank you very much, it works now.
 -L-L/usr/lib/d and -L-ltango-base-ldc were already in the /etc/ldc.conf, but
-L-ltango-user-ldc was missing.

 As I am pretty new to D, is it reasonable that this line was missing or is it
worth a bug-report?

 Thank you very much!

The line won't be in there by default, as the tango user library isn't 
required to write your applications, only the runtime is. If you'd like 
to report a bug it should be to the packagers to see if they can 
automatically add in the user library to the configuration file when you 
install it. I'll add a note to
http://dsource.org/projects/ldc/wiki/BuildInstructionsUbuntu for future 
users in case anyone else has the problem.

Moritz Warning <moritzwarning web.de> writes:

On Thu, 25 Mar 2010 11:34:15 -0400, qwesx wrote:

 Robert Clipsham Wrote:
 
 Try this:
 $ ldc -L-L/usr/lib/d -L-ltango-base-ldc -L-ltango-user-ldc main.d
 
 If that works you need to make sure these -L's are included in yout
 ldc.conf (I'm not sure where this is in the debian packages, probably
 /etc/ldc.conf, /etc/ldc/ldc.conf or /usr/bin/ldc.conf).

 
 Thank you very much, it works now.
 -L-L/usr/lib/d and -L-ltango-base-ldc were already in the /etc/ldc.conf,
 but -L-ltango-user-ldc was missing.
 
 As I am pretty new to D, is it reasonable that this line was missing or
 is it worth a bug-report?
 
 Thank you very much!

Hi,

I've found the bug yesterday and wrote to ldc packages.debian.org already.