No subject

which version of g++/gcc compiler I am getting to compile sources. There
is newer g++ installed in our computer center: 

pengra0(828) which g++-3.2.1
/usr/local/bin/g++-3.2.1

pengra0(829) ../../../tools/build/jam_src/bin.linuxx86/bjam -sTOOLS=gcc
-sBUILD=debug -sJAMBASE= -sBOOST_ROOT= -sBOOST_BUILD_PATH=
-sGXX=g++-3.2.1 -sGCC=gcc-3.2.1

The output to my terminal does not give me info that g++-3.2.1 is used
as follow:

gcc-C++-action
../../../libs/test/build/bin/libunit_test_framework.a/gcc/debug/runtime-link-dynamic/unit_test_result.o

So, could you please tell me how to find out whether g++-3.2.1 was used
or just g++ (which uses version 2.9.6)?

Also, please tell me if the command line above is the correct way to use
g++-3.2.1 compiler?

g++-3.2.1 compiler is symbolically linked to
/usr/local/tools/gnu/gcc/3.2.1_redhat_7a_ia32/bin/g++, so I can simply
do:

1) setenv GCC_ROOT_DIRECTORY
/usr/local/tools/gnu/gcc/3.2.1_redhat_7a_ia32
2) ../../../tools/build/jam_src/bin.linuxx86/bjam -sTOOLS=gcc
-sBUILD=debug -sJAMBASE= -sBOOST_ROOT= -sBOOST_BUILD_PATH=

without using -sGXX=g++-3.2.1 ?

Thank you very much in advance
Chuzo