[Mac OS ][gcc-4.1.0] install and unable to compile commons-collections-3.2.jar

Mon Mar 26 07:02:00 GMT 2007

Hey all,
i"ve installed first :
cctools-590.36
then :
gcc-4.1.0
at "make" step make hange up after :
echo timestamp > lists/gnu-CORBA-Interceptor.stamp
/Users/yt/Desktop/gcc-4.1.0/host-powerpc-apple-darwin8.9.0/gcc/gcj -B/ 
Users/yt/Desktop/gcc-4.1.0/powerpc-apple-darwin8.9.0/ppc64/libjava/ - 
B/Users/yt/Desktop/gcc-4.1.0/host-powerpc-apple-darwin8.9.0/gcc/ -Wno- 
deprecated --encoding=UTF-8 --bootclasspath '' --classpath ..:/Users/ 
yt/Desktop/gcc-4.1.0/libjava:/Users/yt/Desktop/gcc-4.1.0/powerpc- 
apple-darwin8.9.0/ppc64/libjava:../../../../.././libjava/ 
classpath:../../../../.././libjava/classpath/external/ 
w3c_dom:../../../../.././libjava/classpath/external/sax:.: -C -d . - 
MD -MF lists/gnu-CORBA-NamingService.deps -MT lists/gnu-CORBA- 
NamingService.stamp -MP @lists/gnu-CORBA-NamingService.list
after that i've aborted make and redo make with success and make 
install afterwards.
I'm following some advices found in :
<http://www.linux-mag.com/id/1004/>
Going Native
Friday, March 15th, 2002By Glenn McAllister
may be a bit oupdated (?).
after verifying HelloWorld.java to native is OK i wanted to build a 
lib from a jar file :
commons-collections-3.2.jar
whith the command :
gcj -shared -Wall -o libccjava.so commons-collections-3.2.jar
ending in :
gcj: unrecognized option '-shared'
symbol _fabsf used from dynamic library /usr/lib/libm.dylib(fabs.o) 
not from earlier dynamic library /usr/local/lib/libgcj.7.dylib 
(sf_fabs.o)
symbol _fabs used from dynamic library /usr/lib/libm.dylib(fabs.o) 
not from earlier dynamic library /usr/local/lib/libgcj.7.dylib(s_fabs.o)
/usr/bin/ld: warning multiple definitions of symbol _scalbn
/usr/local/lib/gcc/powerpc-apple-darwin8.9.0/4.1.0/../../../ 
libgcj.dylib(s_scalbn.o) definition of _scalbn
/usr/lib/libm.dylib(scalb.o) definition of _scalbn
/usr/bin/ld: warning suggest use of -bind_at_load, as lazy binding 
may result in errors or different symbols being used
/usr/bin/ld: Undefined symbols:
_main
collect2: ld returned 1 exit status
then first the option '-shared' is unrecognized and second this build 
failed.
what's the correct way to build this jar as a lib ?
best,
Yvon