I've recently acquired a copy of the new "Linux Application Development" by
Michael K. Johnson and Erik W. Troan.
In it, it describes how to create and use shared libraries. But when I follow
the instructions. It doesn't work.
Here is the example:
`libhello.c'
-------------------------------------------------------------------------------
#include <stdio.h>
void print_hello(void){
printf("Hello, shared library.\n");
}
-------------------------------------------------------------------------------
`libhello.h' (this file was not included, but below is a best guess)
-------------------------------------------------------------------------------
void print_hello(void);
-------------------------------------------------------------------------------
`usehello.c'
-------------------------------------------------------------------------------
#include "libhello.h"
int main(void){
print_hello();
return 0;
}
-------------------------------------------------------------------------------
Compile and Link instructions:
gcc -fPIC -Wall -g -c libhello.c
gcc -g -shared -Wl,-soname,libhello.so.0 -o libhello.so.0.0 libhello.o -lc
ln -sf libhello.so.0.0 libhello.so.0
ln -sf libhello.so.0 libhello.so
gcc -Wall -g -c usehello.c -o usehello.o
gcc -g -o usehello usehello.o -L. -lhello
Then run with:
LD_LIBRARY_PATH='pwd' ./usehello
But I get this error:
./usehello: can't load library 'libhello.so.0'
Any suggestions?
Brock
+------------------------/----------------------------------------------------+
| R. Brock Lynn / http://citv.unl.edu/linux/LinuxPresentation.html |
| [EMAIL PROTECTED] / http://www.kirch.net/unix-nt.html Live free or die. |
+---------------------/-------------------------------------------------------+
