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Full Discussion: Compiling and linking Shared Libraries.
Top Forums Programming Compiling and linking Shared Libraries. Post 302449319 by junaid.nehvi on Monday 30th of August 2010 07:08:09 AM
Old 08-30-2010
Compiling and linking Shared Libraries.
here is the output:
$ gcc -v
Using built-in specs.
Target: i386-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=i386-redhat-linux
Thread model: posix
gcc version 4.1.1 20061011 (Red Hat 4.1.1-30)
$ file libCommon.so
libCommon.so: ASCII text, with no line terminators

I found that .so file is ascii its contents are:
$ cat libCommon.so
libCommon.so.1.0.0

now i tried following:
$ gcc My_program.c libCommon.so.1.0.0
My_program.c: In function āmainā:
My_program.c:13: warning: parameter names (without types) in function declaration
libCommon.so.1.0.0: undefined reference to `dlsym'
libCommon.so.1.0.0: undefined reference to `dlopen'
libCommon.so.1.0.0: undefined reference to `dlclose'
collect2: ld returned 1 exit status

$ gcc My_program.c -llibCommon.so.1.0.0
My_program.c: In function āmainā:
My_program.c:13: warning: parameter names (without types) in function declaration
/usr/bin/ld: cannot find -llibCommon.so.1.0.0
collect2: ld returned 1 exit status

$ gcc My_program.c -l libCommon.so.1.0.0
My_program.c: In function āmainā:
My_program.c:13: warning: parameter names (without types) in function declaration
/usr/bin/ld: cannot find -llibCommon.so.1.0.0
collect2: ld returned 1 exit status

$ gcc My_program.c -lCommon.so.1.0.0
My_program.c: In function āmainā:
My_program.c:13: warning: parameter names (without types) in function declaration
/usr/bin/ld: cannot find -lCommon.so.1.0.0
collect2: ld returned 1 exit status

Thanks in advance
 

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LEARN ABOUT OPENDARWIN

enable

enable(1)							   User Commands							 enable(1)

NAME

       enable, disable - enable/disable LP printers

SYNOPSIS

       /usr/bin/enable printer...

       /usr/bin/disable [-c | -W]  [ -r [reason]] printer...

DESCRIPTION

       The  enable  command  activates	printers,  enabling  them to print requests submitted by the lp command. enable must be run on the printer
       server.

       The disable command deactivates printers, disabling them from printing requests submitted by the lp command. By default, any requests  that
       are  currently  printing  on printer will be reprinted in their entirety either on printer or another member of the same class of printers.
       The disable command must be run on the print server.

       Use lpstat -p to check the status of printers.

       enable and disable only effect queueing on the print server's spooling system. Executing these commands from a client system will  have	no
       effect on the server.

OPTIONS

       The following options are supported for use with disable:

       -c	       Cancels	any requests that are currently printing on printer. This option cannot be used with the -W option. If the printer
		       is remote, the -c option will be silently ignored.

       -W	       Waits until the request currently being printed is finished before disabling printer. This option cannot be used  with  the
		       -c option. If the printer is remote, the -W option will be silently ignored.

       -r [reason]     Assigns	a  reason  for	the  disabling	of  the  printer(s). This reason applies to all printers specified. This reason is
		       reported by lpstat -p. Enclose reason in quotes if it contains blanks. The default  reason  is  "unknown  reason"  for  the
		       existing printer, and "new printer" for a printer added to the system but not yet enabled.

OPERANDS

       The following operand is supported for both enable and disable:

       printer	       The  name of the printer to be enabled or disabled. Specify printer using atomic name. See printers.conf(4) for information
		       regarding the naming conventions for atomic names.

EXIT STATUS

       The following exit values are returned:

       0	       Successful completion.

       non-zero        An error occurred.

FILES

       /var/spool/lp/*	       LP print queue.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWpcu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       lp(1), lpstat(1), printers.conf(4), attributes(5)

SunOS 5.10							    9 Sep 1996								 enable(1)
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