If the workspace directory (or any parent) contains the word "unix", the
build fails in java.desktop-libs. There are several libraries here that
use the EXCLUDE_SRC_FILTER option of SetupJdkLibrary to filter away the
src/java.desktop/unix/lib* dirs. This option incorrectly includes the
whole absolute path of each source file when applying the filter, so
when the workspace dir contains "unix", these libraries get no source
files at all.
This patch changes the filter mechanics to only apply to the path
relative to the workspace root. I also changed the filter token from
"unix" to "/unix/" to avoid the risk of matching substrings in
directories in the future.
Bug: https://bugs.openjdk.java.net/browse/JDK-8225140
Webrev: http://cr.openjdk.java.net/~erikj/8225140/webrev.01/index.html
/Erik
