RFR(XXS): 8062312: OpenJDK build fails when bundling freetype libraries

[Volker Simonis]

Hi,

could you please review the following tiny change which fixes the copy
step of the freetype libraries after 8058756:

http://cr.openjdk.java.net/~simonis/webrevs/8062312/
https://bugs.openjdk.java.net/browse/JDK-8062312

After the fix for "JDK-8058756: OpenJDK builds fail on Windows -
cannot copy freetype.dll" the build fails on Unix if the freetype
library which should be bundled is a symbolic link. This is because
8058756 replaced the copy operation by a call to $(install-file) which
preserves symlinks.

The fix is easy: just roll back to the initial copy operation and
insert an 'mkdir -p' for the target directory (as initially proposed
as fix for 8058756).

Built and smoke tested on Linux, Solaris, Windows and MacOS X.

Thank you and best regards,
Volker