How do run the jni in linux enviroment??

Question

I run the HelloWorld sample in linux
but I stock in load the share library!
When I type this command as following:
cc -G -I/usr/local/java/include -I/usr/local/java/include/linux \
HelloWorldImp.c -o libhello.so
there are error message like this :
unrecognized option '-G'
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../crt1.o:In function '_start':
/usr/lib/gcc-lib/i386-redhat-linux/2.96/../../../crt1.o(.text+0x18):
undefined reference to 'main'
can you help me solve the problem?

Answer 1

gcc -I/usr/lib/java-1.3/include -I/usr/lib/java-1.3/include/linux \
     -fPIC -g -c -Wall HelloWorldImp.c
gcc -shared -Wl,-soname,libhello.so -o libhello.so HelloWorldImp.o
when you call the library in java
System.loadLibrary("hello");