Simple_

/user/bin/ld: warning: lA.so.0, needed by lA.so, not found (try using -rpath or -rpath-link)

collect2: ld returned 1 exit status

make: *** [test.out] 오류 1

 export LD_LIBRARY_PATH={lA.so가들어있는디렉토리패스}:$LD_LIBRARY_PATH

-Wl,-rpath-link,{lA.so가들어있는디렉토리패스}

 -Wl,option

   Pass option as an option to the linker.  If option contains commas, it is split into

  multiple options at the commas.  

  You can use this syntax to pass an argument to the option.

  For example, -Wl,-Map,output.map passes -Map output.map to the linker.  When using the GNU

  linker, you can also get the same effect with -Wl,-Map=output.map.

   -rpath=dir

           Add a directory to the runtime library search path.  This is used when linking an ELF

           executable with shared objects.  All -rpath arguments are concatenated and passed to the

           runtime linker, which uses them to locate shared objects at runtime.  The -rpath option is

           also used when locating shared objects which are needed by shared objects explicitly

           included in the link; see the description of the -rpath-link option.  If -rpath is not used

           when linking an ELF executable, the contents of the environment variable "LD_RUN_PATH" will

           be used if it is defined.

           The -rpath option may also be used on SunOS.  By default, on SunOS, the linker will form a

           runtime search patch out of all the -L options it is given.  If a -rpath option is used, the

           runtime search path will be formed exclusively using the -rpath options, ignoring the -L

           options.  This can be useful when using gcc, which adds many -L options which may be on NFS

           mounted file systems.

           For compatibility with other ELF linkers, if the -R option is followed by a directory name,

           rather than a file name, it is treated as the -rpath option.

       -rpath-link=dir

           When using ELF or SunOS, one shared library may require another.  This happens when an "ld

           -shared" link includes a shared library as one of the input files.

           When the linker encounters such a dependency when doing a non-shared, non-relocatable link,

           it will automatically try to locate the required shared library and include it in the link,

           if it is not included explicitly.  In such a case, the -rpath-link option specifies the

           first set of directories to search.  The -rpath-link option may specify a sequence of

           directory names either by specifying a list of names separated by colons, or by appearing

           multiple times.

           This option should be used with caution as it overrides the search path that may have been

           hard compiled into a shared library. In such a case it is possible to use unintentionally a

           different search path than the runtime linker would do.

           The linker uses the following search paths to locate required shared libraries:

           1.  Any directories specified by -rpath-link options.

           2.  Any directories specified by -rpath options.  The difference between -rpath and

               -rpath-link is that directories specified by -rpath options are included in the

               executable and used at runtime, whereas the -rpath-link option is only effective at link

               time. Searching -rpath in this way is only supported by native linkers and cross linkers

               which have been configured with the --with-sysroot option.

           3.  On an ELF system, for native linkers, if the -rpath and -rpath-link options were not

               used, search the contents of the environment variable "LD_RUN_PATH".

           4.  On SunOS, if the -rpath option was not used, search any directories specified using -L

               options.

           5.  For a native linker, the search the contents of the environment variable

               "LD_LIBRARY_PATH".

           6.  For a native ELF linker, the directories in "DT_RUNPATH" or "DT_RPATH" of a shared

               library are searched for shared libraries needed by it. The "DT_RPATH" entries are

               ignored if "DT_RUNPATH" entries exist.

           7.  The default directories, normally /lib and /usr/lib.

           8.  For a native linker on an ELF system, if the file /etc/ld.so.conf exists, the list of

               directories found in that file.

           If the required shared library is not found, the linker will issue a warning and continue

           with the link.

(ld man page)

http://www.naver.com^Ghttp://www.google.com^Ghttp://www.daum.net

AAA(const AAA& a)

{

}

int main()

{

   Person p1;

   Person p2=p1;  //기존에 생성된 객체로 새로운 객체 초기화

}

void func(Person p)

Person fun2()