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load error while creating shared library

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Operating Systems Linux load error while creating shared library
# 1  
Old 01-16-2006
Network load error while creating shared library
Hi,

I am trying to create shared library. When i run the script to build the library i get these errors

ld: warning: option -o appears more than once, first setting taken
ld: fatal: file libgc.so.0: open failed: No such file or directory
ld: fatal: File processing errors. No output written to libgc.so.0.0
collect2: ld returned 1 exit status
./shared.sh: /sbin/ldconfig: not found
ln: cannot create libgc.so: File exists
demo.c: In function `main':
demo.c:5: warning: return type of `main' is not `int'
ld: fatal: library -lgc: not found
ld: fatal: File processing errors. No output written to demo-shared
collect2: ld returned 1 exit status
./shared.sh: ./demo-shared: not found

Please, explain me what is this warning.
Here, you can find the details of script
#!/bin/sh
gcc -fPIC -g -c libgc.c
gcc -g -shared -Wl,-soname,libgc.so.0 \
-o libgc.so.0.0 libgc.o -lc
/sbin/ldconfig -n .
ln -sf libgc.so.0 libgc.so
gcc -g -c demo.c -o demo.o
gcc -g -o demo-shared demo.o -L. -lgc
LD_LIBRARY_PATH="." ./demo-shared


Thanks in advance.
masg1
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LEARN ABOUT CENTOS

redland-config

redland-config(1)					      General Commands Manual						 redland-config(1)

NAME

       redland-config - script to get information about the installed version of Redland

SYNOPSIS

       redland-config [--cflags] [--help] [--libs] [--libtool-libs] [--prefix[=DIR]] [--private-libs] [--version-decimal] [--version]

DESCRIPTION

       redland-config  is  a tool that is used to determine the compile and linker flags that should be used to compile and link programs that use
       the Redland RDF library.

OPTIONS

       redland-config accepts the following options:

       --version
	       Print the currently installed version of redland on the standard output.

       --version-decimal
	       Print the currently installed version of redland as a decimal integer.

       --libs  Print the linker flags that are necessary to link a redland program.  This excludes linker  arguments  used  to	build  the  librdf
	       shared library.

       --libtool-libs
	       Print the flags that are necessary to link a redland program with libtool.

       --private-libs
	       Print the linker flags that are necessary to build the librdf shared library.  This option is not usually needed because the librdf
	       shared library has already been dynamically linked against these libs.

       --cflags
	       Print the compiler flags that are necessary to compile a redland program.

       --prefix=PREFIX
	       If specified, use PREFIX instead of the installation prefix that redland was built with when computing the output for the  --cflags
	       and --libs options. This option must be specified before any --libs or --cflags options.

SEE ALSO

       redland(3),

AUTHOR

       Dave Beckett - http://www.dajobe.org/ <http://www.dajobe.org/>

								    2008-09-07							 redland-config(1)