[omniORB] need help to make omniorb 3.0.5 in sun

[Jian Deng]

trying to compile omniorb 3.0.5 in sun solaris using g++/gcc.  it failed when 
omniidl is doing the following,

../../../bin/sun4_sosV_5.7/omniidl -bcxx -Wba -Wbuse_quotes -DNOLONGLONG -I. 
-I../../../idl/COS ../../../idl/COS/CosLifeCycle.idl       
omniidl: Could not import back-end `cxx'
omniidl: Maybe you need to use the -p option?
omniidl: (The error was `cannot import name header')
make[2]: *** [CosLifeCycleSK.cc] Error 1
make[2]: Leaving directory 
`/usr/local/home/kcco/src/oss/omni305/src/services/mklib'
make[1]: *** [export] Error 2
make[1]: Leaving directory `/usr/local/home/kcco/src/oss/omni305/src/services'
make: *** [export] Error 2

just woundering how could i have back-end cxx imported.  i am using using 
g++/gcc on SunOS hostname 5.8 Generic sun4u sparc SUNW,Ultra-5_10.

many thanks.
- jd