Changes for 6891766 break build

http://hg.openjdk.java.net/jdk7/tl/corba/rev/b2fff4b7e8cd breaks the forest build of jdk7/tl.

gnumake[5]: Entering directory `/export/Users/ab23780/ws/TL/corba/make/com/sun/corba/se/core'
gnumake[5]: *** No rule to make target `../../../../../../build/solaris-sparc/classes/com/sun/corba/se/impl/io/IIOPInputStream.class', needed by `../../../../../../build/solaris-sparc/tmp/sun/com.sun.corba.se.impl.core/.classes.list'. Stop.
gnumake[5]: Leaving directory `/export/Users/ab23780/ws/TL/corba/make/com/sun/corba/se/core'
gnumake[4]: *** [build] Error 1
gnumake[4]: Leaving directory `/export/Users/ab23780/ws/TL/corba/make/com/sun/corba/se'
gnumake[3]: *** [build] Error 1
gnumake[3]: Leaving directory `/export/Users/ab23780/ws/TL/corba/make/com/sun/corba'
gnumake[2]: *** [build] Error 1
gnumake[2]: Leaving directory `/export/Users/ab23780/ws/TL/corba/make/com/sun'
gnumake[1]: *** [build] Error 1
gnumake[1]: Leaving directory `/export/Users/ab23780/ws/TL/corba/make/com'
gnumake: *** [build] Error 1