gcc-3.2 can not locate stl containers (vector, map, ... etc)

[Saeed Eskandari]

Hello,
I recently upgraded my system from redhat Linux 7.2 with gcc-2.95 to RedHat 
Linux 8.0 with gcc-3.2 . 

I have a program which has been compiled and linked by gcc-2.95  without any 
problem. However after upgrading my system my program no longer compile. 

I get a lot of compiler error messages, mostly regarding to STL containers and 
algorithms.  A few lines are as following :

:210: syntax error before `;' token
:213: 'string' is used as a type, but is not defined as a type.
:214: `int UV_ROISize' used prior to declaration
:224: `QColor*targetLedColor' used prior to declaration
:229: 'deque' is used as a type, but is not defined as a type.
:230: 'deque' is used as a type, but is not defined as a type.
:231: 'deque' is used as a type, but is not defined as a type.
:232: 'deque' is used as a type, but is not defined as a type.
:238: 'vector' is used as a type, but is not defined as a type.
:239: 'vector' is used as a type, but is not defined as a type.
:240: 'vector' is used as a type, but is not defined as a type.

I  added the location of the  stl (std)  header files by -I flag but it did 
not resolve 
my problem. 

I appreciate if you share with me your opinion about how to solve this 
problem.  Please let me know if you need any further information. 

I just learned that my problem might be because of including std namespace in 
my program. However my program is relatively big (20K +)  and I do not want 
prepend any single stl construct with std:: . 
would  you please suggest  any simple way to resolve this problem without 
changing my program?

Regards,
Saeed