problem with LZO: undefined reference to...

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Zanardi...

Posted: Tue May 13, 2008 5:57 am

Guest

Hi,

I need help with LZO. I write a programm in C, with Linux (debian) and
I need to use LZO for compress my data.

I install LZO and in my code I add:

#include <lzoconf.h>
#include <lzo1x.h>

and in my 'main':

lzo_init();

The answer, when I compiling is:

gcc MyProgram.c -o MyProgram
/tmp/cc2Lx3eX.o: In function `main':
MyProgram.c Sad

.text+0x19fc): undefined reference to `__lzo_init2'
collect2: ld returned 1 exit status

Someone can help me?
I thank you in advance,
Zanardi.

Zanardi...

Posted: Tue May 13, 2008 11:03 am

Guest

Quote:

You're right, with:

gcc MyProgram.c -o MyProgram -llzo2

It works perfectly ;-)

Thank you Wink

Zanardi.

Phil Carmody...

Posted: Tue May 13, 2008 1:08 pm

Guest

Zanardi <gasperotti at (no spam) supereva.it> writes:

Quote:

Hi,

I need help with LZO. I write a programm in C, with Linux (debian) and
I need to use LZO for compress my data.

I install LZO and in my code I add:

#include <lzoconf.h
#include <lzo1x.h

and in my 'main':

lzo_init();

The answer, when I compiling is:

gcc MyProgram.c -o MyProgram
/tmp/cc2Lx3eX.o: In function `main':
MyProgram.c Sad

.text+0x19fc): undefined reference to `__lzo_init2'
collect2: ld returned 1 exit status

You need to link with the lzo library.
It's probably a file called /usr/lib/liblzo.a
In which case change your your command line to

gcc MyProgram.c -o MyProgram -llzo

(so -l followed by the library name without the path,
the 'lib' bit, or the extension.)

Phil
--
Dear aunt, let's set so double the killer delete select all.
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