运行可执行程序时找不到so库的几种处理方法

//source file
main.c  p_me.c  p_me.h

//get object file
gcc -fPIC -c p_me.c
gcc -c main.c

//get shared library
gcc -shared -o libfun.so p_me.o

//get binary file(can't work rightly)
 gcc -o test -L. -lfun main.o

//exec binary file
./test
error while loading shared libraries: libfun.so: cannot open shared object file: No such file or directory

//solution 1(search path in link time)
export LD_LIBRARY_PATH=`pwd`
./test /* work porperly */

//solution 2(not recommended)
gcc -o test /path/libfun.so main.o /* the path is where is your libfun.so at */
./test /* work porperly */

//solution 3(search path in Run time)
gcc -o test -L. -lfun main.o -Wl,-rpath /path/ /* the path is where is your libfun.so at */

search_so_lib.zip