-export-dynamic with .a files?

Wed Mar 19 14:46:00 GMT 2003

It looks like .a files cannot be exported dynamically?
$ gcc -c TestJNI.c -o jni-c-part.o
$ ar -crs jni-c-part.a jni-c-part.o
$ gcj -c -fjni TestJNI.java -o jni-java-part.o
$ gcj -export-dynamic --main=TestJNI jni-c-part.o jni-java-part.o -o
testjni --> works
$ gcj -export-dynamic --main=TestJNI jni-c-part.a jni-java-part.o -o
testjni --> won't work
Is there a reason why -export-dynamic doesn't work with .a files?