Apache Log4cxx build fails with gcc 2.95 under Solaris 8

bash-2.03$ make
Making all in docs
Making all in src
source='appenderattachableimpl.cpp' object='appenderattachableimpl.lo'
libtool=yes \
DEPDIR=.deps depmode=gcc /bin/bash ../depcomp \
/bin/bash ../libtool --mode=compile --tag=CXX g++ -DHAVE_CONFIG_H  -I. -I.
-I../include/log4cxx -I../include  -D_REENTRANT   -g -O2 -c -o
appenderattachableimpl.lo appenderattachableimpl.cpp
 g++ -DHAVE_CONFIG_H -I. -I. -I../include/log4cxx -I../include -D_REENTRANT
-g -O2 -c appenderattachableimpl.cpp
-Wp,-MD,.deps/appenderattachableimpl.TPlo  -fPIC -DPIC -o
.libs/appenderattachableimpl.o
In file included from appenderattachableimpl.cpp:17:
../include/log4cxx/helpers/tchar.h:29: streambuf: No such file or directory
*** Error code 1

Since it says error in streambuf, I have commented out that line from
tchar.h file (because sstream was already included in the same file just 3
lines earlier), and now I  get some more errors:

bash-2.03$ make
Making all in docs
Making all in src
source='appenderattachableimpl.cpp' object='appenderattachableimpl.lo'
libtool=yes \
DEPDIR=.deps depmode=gcc /bin/bash ../depcomp \
/bin/bash ../libtool --mode=compile --tag=CXX g++ -DHAVE_CONFIG_H  -I. -I.
-I../include/log4cxx -I../include  -D_REENTRANT   -g -O2 -c -o
appenderattachableimpl.lo appenderattachableimpl.cpp
 g++ -DHAVE_CONFIG_H -I. -I. -I../include/log4cxx -I../include -D_REENTRANT
-g -O2 -c appenderattachableimpl.cpp
-Wp,-MD,.deps/appenderattachableimpl.TPlo  -fPIC -DPIC -o
.libs/appenderattachableimpl.o
In file included from appenderattachableimpl.cpp:17:
../include/log4cxx/helpers/tchar.h:45: parse error before `&'
../include/log4cxx/helpers/tchar.h:54: parse error before `&'
../include/log4cxx/helpers/tchar.h:55: `Convert::int64ToString(...)' has
already been declared in `Convert'
../include/log4cxx/helpers/tchar.h: In function `static void
Convert::int64ToString(...)':
../include/log4cxx/helpers/tchar.h:50: `dst' undeclared (first use this
function)
../include/log4cxx/helpers/tchar.h:50: (Each undeclared identifier is
reported only once
../include/log4cxx/helpers/tchar.h:50: for each function it appears in.)
../include/log4cxx/helpers/tchar.h:50: `maxlen' undeclared (first use this
function)
../include/log4cxx/helpers/tchar.h:50: `ll' undeclared (first use this
function)
../include/log4cxx/helpers/tchar.h: At top level:
../include/log4cxx/helpers/tchar.h:67: syntax error before `&'
../include/log4cxx/helpers/tchar.h:68: `basic_ostream' was not declared in
this scope
../include/log4cxx/helpers/tchar.h:68: `_CharT' was not declared in this
scope
../include/log4cxx/helpers/tchar.h:68: `_Traits' was not declared in this
scope
../include/log4cxx/helpers/tchar.h:68: `os' was not declared in this scope
../include/log4cxx/helpers/tchar.h:68: parse error before `&'
../include/log4cxx/helpers/tchar.h:69: ANSI C++ forbids declaration
`operator <<' with no type
../include/log4cxx/helpers/tchar.h:69: `operator <<(...)' must have an
argument of class or enumerated type
../include/log4cxx/helpers/tchar.h:69: `operator <<(...)' must take exactly
two arguments

etc ... etc ...

*** Error code 1


I am using gcc 2.95.3.

What can be the error and how to resolve these?

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