Installation gcc 2.95.2 to dynix 4.4.2

Installation gcc 2.95.2 to dynix 4.4.2

[FRANCK.BELLUGEON]

Hello,
I try to install Gcc 2.95.2 to sequent (dynix 4.4.2).
I've add a compilation option "NO_SYS_SIGLIST" to compile.
At the end of stage2, I'can compile builtinbuf.cc, and a compilation error
appears:
The error message is:

  /usr/local/newgnu/src/gcc-2.95.2/gcc/xgcc
-B/usr/local/newgnu/src/gcc-2.95.2/g
cc/ -B/usr/local/newgnu/i386-sequent-sysv4/bin/ -c -g -O2
-fno-implicit-template
s -I. -I. -nostdinc++   builtinbuf.cc -o pic/builtinbuf.o
/usr/local/newgnu/src/gcc-2.95.2/gcc/xgcc
-B/usr/local/newgnu/src/gcc-2.95.2/gcc
/ -B/usr/local/newgnu/i386-sequent-sysv4/bin/ -c -g -O2
-fno-implicit-templates
-I. -I. -nostdinc++  builtinbuf.cc
In file included from builtinbuf.h:32,
                 from builtinbuf.cc:29:
streambuf.h: In method `void ios::clear(int = 0)':
streambuf.h:212: `class ios' has no member named `_throw_failure'
streambuf.h: In method `void ios::set(int)':
streambuf.h:214: `class ios' has no member named `_throw_failure'
streambuf.h: In method `void ios::setstate(int)':
streambuf.h:216: `class ios' has no member named `_throw_failure'
streambuf.h: In method `ios::operator void *() const':
streambuf.h:222: `class ios' has no member named `fail'
streambuf.h: In method `int ios::operator !() const':
streambuf.h:223: `class ios' has no member named `fail'
streambuf.h: In method `void ios::exceptions(int)':
streambuf.h:227: `class ios' has no member named `_throw_failure'
streambuf.h: In method `class streambuf * ios::rdbuf(streambuf *)':
streambuf.h:231: `class ios' has no member named `clear'
make[2]: *** [builtinbuf.o] Error 1
make[2]: Leaving directory
`/usr/local/newgnu/src/gcc-2.95.2/i386-sequent-sysv4/
libio'
make[1]: *** [all-target-libio] Error 2
make[1]: Leaving directory `/usr/local/newgnu/src/gcc-2.95.2'

 can you,help me

Best Regards