LinuxQuestions.org - strange linking error -- can not find shared library

Hello everyone,

I am meeting with a strange linking error when linking with a shared library on Linux platform. I use goo.c to generate libgoo.so, then write an application foo.c and link it with libgoo.so. The error occurs when linking with libgoo.so. The strange point is that, the LD_LIBRARY_PATH is not working, but -L option to gcc works -- I think they should be the same, but in my case below, it seems only -L works.

Here are the source codes,

goo.c

Code:

int goo_export()

{

        return 10;

}

goo.h

Code:

int goo_export();

foo.c

Code:

#include "goo.h"



int main()

{

        goo_export();

}

Error messages,

[root@localhost shared_goo]# gcc -shared goo.c -o libgoo.so
[root@localhost shared_goo]# export LD_LIBRARY_PATH=.
[root@localhost shared_goo]# gcc -I. -lgoo foo.c
/usr/bin/ld: cannot find -lgoo
collect2: ld returned 1 exit status
[root@localhost shared_goo]# gcc -I. -L. -lgoo foo.c

thanks in advance,
George