[omniORB] could not compile omniORB_2.7.1 on IRIX 6.2

[zeng xibai]

I am new to CORBA. I want to develop applicaiton across solaris(SPARC),
Redhat Linux(x86) and IRIX(MIPS), So the first step I need to do is to
deploy CORBA ORB on all this platforms. I prefer  omniORB 2.7.1.
I successfully compiled it on Solaris and Redhat. the "echo" sample
looks like OK. But I encounter trouble in compiling it on IRIX
6.2(SGI Indigo 2 IMPACT R10000). My compiler is:

C compiler 7.1
C++ complier 7.1

thank in advance for any kind help.

best regards,
zeng xibai