cmath 'ceil' is already defined in this scope

["zze-VALSE PERENNEC A ext RD-CORE-ISS" <aperennec dot ext at rd dot francetelecom dot com>]

Hi all,
I'm currently trying to compile an open source (open diameter) on my
Mandrake 10.1 with gcc 3.3.1, that is intented to work fine, but I'm
experiencing a few errors that seem to be related to my c++ standard
lib.
 Here are my logs :
g++ -DPACKAGE_NAME=\"OpenDiameter\" -DPACKAGE_TARNAME=\"opendiameter\" 
-DPACKAGE_VERSION=\"1.0.7-g\" "-DPACKAGE_STRING=\"OpenDiameter
1.0.7-g\"" 
-DPACKAGE_BUGREPORT=\"yohba@tari.toshiba.com\"
-DPACKAGE=\"opendiameter\" 
-DVERSION=\"1.0.7-g\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1
-DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1
-DHAVE_MEMORY_H=1
-DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1
-DHAVE_UNISTD_H=1
-DHAVE_DLFCN_H=1 -DHAVE_IFADDRS_H=1 -DHAVE_SHADOW_H=1 -DHAVE__BOOL=1
-DHAVE_STDBOOL_H=1 -DHAVE_GETIFADDRS=1 -I. -I. -Wall -Wno-sign-compare
-I/home/sai/xerces/xerces-c-src2_4_0//include
-I/home/sai/xerces/xerces-c-src2_4_0//include/xercesc
-I/home/sai/Ace/ACE_wrappers/ -I/home/sai/boost_1_32_0/ -I../include
-DOS_LINUX -g -O2 -MT comlist.lo -MD -MP -MF .deps/comlist.Tpo -c
comlist.cxx -o comlist.o In file included from
/usr/include/c++/3.3.1/bits/locale_facets.tcc:41,
from /usr/include/c++/3.3.1/locale:47,
from /usr/include/c++/3.3.1/bits/ostream.tcc:37,
from /usr/include/c++/3.3.1/ostream:535,
from /usr/include/c++/3.3.1/iterator:70,
from
/home/sai/boost_1_32_0/boost/spirit/core/scanner/scanner.hpp:12,
from
/home/sai/boost_1_32_0/boost/spirit/core/parser.hpp:14,
from /home/sai/boost_1_32_0/boost/spirit/core.hpp:30,
from parser_avpvalue.h:48,
from comlist.cxx:38:
/usr/include/c++/3.3.1/cmath:256: error: `ceil' is already declared in
this scope
/usr/include/c++/3.3.1/cmath:330: error: `floor' is already declared in
this scope
make[1]: *** [comlist.lo] Erreur 1
make[1]: Leaving directory
`/home/sai/openDiameter/opendiameter-1.0.7-g/libdiamparser'
make: *** [all-recursive] Erreur 1

This message seems to say that there are twins 'ceil' and 'floor'
functions in the STL I'm using (libstdc++5.so) ?
Isn't that curious ? 
Is it possible that my "down-grade" of compilator, from gcc 3.4.1 to gcc
3.3.1 (for ACE library dependency compilation purpose) could be the
source of my problems ? In that case, what should I do to circumveign to
that issue without changing my gcc version ?
Whatever, I would be very glad if somebody could give me a few
information to help me solve that problem, because I really can't
explain what's happening to me...
Thanks a lot in advance,
Antoine.