Set 'icu_shared' to an empty string when there is no ICU. 'config/gen/makefiles/dynclasses_pl.in' complained about 'icu_shared' being undefined.
Set 'icu_shared' to an empty string when there is no ICU.
'config/gen/makefiles/dynclasses_pl.in' complained about 'icu_shared'
being undefined.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@7850 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

tkob/parrot,fernandobrito/parrot,tkob/parrot,youprofit/parrot,FROGGS/parrot,gagern/parrot,youprofit/parrot,FROGGS/parrot,FROGGS/parrot,youprofit/parrot,tkob/parrot,fernandobrito/parrot,tkob/parrot,fernandobrito/parrot,parrot/parrot,tewk/parrot-select,tkob/parrot,parrot/parrot,gagern/parrot,gagern/parrot,tkob/parrot,FROGGS/parrot,youprofit/parrot,parrot/parrot,gitster/parrot,FROGGS/parrot,FROGGS/parrot,tkob/parrot,youprofit/parrot,tewk/parrot-select,FROGGS/parrot,gitster/parrot,youprofit/parrot,FROGGS/parrot,fernandobrito/parrot,fernandobrito/parrot,gagern/parrot,gitster/parrot,gitster/parrot,gitster/parrot,gagern/parrot,tewk/parrot-select,gitster/parrot,youprofit/parrot,fernandobrito/parrot,tewk/parrot-select,tewk/parrot-select,tewk/parrot-select,tkob/parrot,parrot/parrot,tewk/parrot-select,fernandobrito/parrot,gagern/parrot,parrot/parrot,gitster/parrot,gagern/parrot,youprofit/parrot