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Full Discussion: use gcc and link with a library
Top Forums Programming use gcc and link with a library Post 52507 by AUBERT on Monday 21st of June 2004 11:54:40 AM
Old 06-21-2004
use gcc and link with a library
Hello,

J have a problem when I use gcc:
This comand works:
gcc -shared -fpic -I/usr/include/sys -I/usr/include -L/usr/lib/librt.sl essai1.c mylib.sl

but

gcc I/usr/include/sys -I/usr/include -L/usr/lib/librt.sl essai2.c -o essai
don't work.

The first command creates a dynamique library and link the library librt.sl
The second commad creates an executable file using the library librt.sl.
In this library are defined the functions mq_open mq_send etc.. that I use in essai.c, but when I launc this command I have the following message:
/usr/ccs/bin/ld : Unsatisfied symbols
mq_send(code)
mq_open(code)
mq_close(code)l
collect2: ld returned 1 exit status.

Some can help me Thank a lot !
Fréderic
 

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LEARN ABOUT SUNOS

lib450

libplot(3LIB)							Interface Libraries						     libplot(3LIB)

NAME

       libplot, lib300, lib300s, lib4014, lib450, libvt0 - graphics interface libraries

SYNOPSIS

       cc [ flag... ] file... -lplot [ library... ]
       #include <plot.h>

DESCRIPTION

       Functions in this library generate graphics output.

INTERFACES

       The  shared  object  libplot.so.1  provides  the  public interfaces defined below. See intro(3) for additional information on shared object
       interfaces.

       arc			     box
       circle			     closepl
       closevt			     cont
       erase			     label
       line			     linemod
       move			     openpl
       openvt			     point
       space

FILES

       /usr/lib/libplot.so.1		       shared object

       /usr/lib/64/libplot.so.1 	       64-bit shared object

       /usr/lib/lib300.so.1		       shared object

       /usr/lib/64/lib300.so.1		       64-bit shared object

       /usr/lib/lib300s.so.1		       shared object

       /usr/lib/64/lib300s.so.1 	       64-bit shared object

       /usr/lib/lib4014.so.1		       shared object

       /usr/lib/64/lib4014.so.1 	       64-bit shared object

       /usr/lib/lib450.so.1		       shared object

       /usr/lib/64/lib450.so.1		       64-bit shared object

       /usr/lib/libvt0.so.1		       shared object

       /usr/lib/64/libvt0.so.1		       64-bit shared object

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsl (32-bit)		   |
       +-----------------------------+-----------------------------+
       |			     |SUNWcslx (64-bit) 	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pvs(1), intro(3), attributes(5)

SunOS 5.10							    13 Jun 2003 						     libplot(3LIB)
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