Unable to compile using g++

[mdshafi01]

Hi,
I am trying to compile c++ program in SunOs,
It is giving following error.

does any one tell me why this error is getting
error is

program's name is corrid.cpp
This c++ program is used to connect to MQ Series
*************** *************** *************** *************** *************** *****
g++ corrid.cpp
In file included from /usr/local/lib/gcc/sparc-sun-solaris2.9/3.4.6/../../../../
include/c++/3.4.6/backward/iostream.h:31,
from corrid.cpp:61:
/usr/local/lib/gcc/sparc-sun-solaris2.9/3.4.6/../../../../include/c++/3.4.6/back
ward/backward_warnin g.h:32:2: warning: #warning This file includes at least one
deprecated or antiquated header. Please consider using one of the 32 headers fou
nd in section 17.4.1.2 of the C++ standard. Examples include substituting the <X
> header for the <X.h> header for C++ includes, or <iostream> instead of the dep
recated header <iostream.h>. To disable this warning use -Wno-deprecated.
Undefined first referenced
symbol in file
ImqErr::~ImqErr () /var/tmp//cc8lGnv0.o
ImqGmo3::ImqGmo 3() /var/tmp//cc8lGnv0.o
ImqGmo3::~ImqGm o3() /var/tmp//cc8lGnv0.o
ImqQue::ImqQue( ) /var/tmp//cc8lGnv0.o
ImqQue::~ImqQue () /var/tmp//cc8lGnv0.o
ImqPmo::ImqPmo( ) /var/tmp//cc8lGnv0.o
typeinfo for ImqErr /var/tmp//cc8lGnv0.o
ImqMsg::ImqMsg( ) /var/tmp//cc8lGnv0.o
ImqMsg::~ImqMsg () /var/tmp//cc8lGnv0.o
ImqMgr::ImqMgr( ) /var/tmp//cc8lGnv0.o
ImqMgr::~ImqMgr () /var/tmp//cc8lGnv0.o
ld: fatal: Symbol referencing errors. No output written to a.out
collect2: ld returned 1 exit status

[gpraghuram]

Have you included the library using the -l option while compiling this using g++?
The first line is a warning...i think u are using iostream.h
The next lines are linker errors.


Raghuram

[weaknessforcats]

C++ header files have no extension. The .h is for C header files.

Therefore, old files like iostream.h are pre-ANS C++ from before 1998. That's the antiquated warning is about.