* get-deps.sh: Don't unpack dependencies more than once.
* get-deps.sh: Don't unpack dependencies more than once.

Patch by: Daniel Richard G. <skunk@iSKUNK.ORG>
(submitted on users@, part of his post quoted below)

host:/tmp/subversion$ ./get-deps.sh
[script output elided]

host:/tmp/subversion$ find . -name apr_hash.c
./apr/tables/apr_hash.c

host:/tmp/subversion$ ./get-deps.sh
[script output elided]

host:/tmp/subversion$ find . -name apr_hash.c
./apr/apr-1.4.6/tables/apr_hash.c
./apr/tables/apr_hash.c

Re-running the script may be necessary in case some packages failed to
download the first time around (zlib in my case, as the current version
is now 1.2.7 instead of 1.2.6).


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1352032 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion