[Gtkradiant] error while compiling

[Guido Gabriel Block]

hi there,
i tried to install on a 10.3 system. i do all the steps from the 
wiki-manual.
in terminal window, the system starts to compile but cut of after few 
hours
saying the following:

g++: unrecognized option `-shared'
ld: warning prebinding disabled because dependent library: 
/sw/lib/libglib-2.0.0.dylib is not prebound
ld: warning multiple definitions of symbol _locale_charset
/sw/lib/libiconv.dylib(localcharset.o) definition of _locale_charset
/sw/lib/libintl.dylib(localcharset.lo) definition of _locale_charset
ld: Undefined symbols:
_dlsym_auto_underscore
/usr/bin/libtool: internal link edit command failed
scons: *** [build/release/bobtoolz.so] Error 1
scons: done building targets.
### execution of sh failed, exit code 2
Failed: compiling radiant-1.3.13-2 failed
Guidos-Computer:~ gui$


i dunno what to do now... :(
any suggestions? please help...

cu.guido