[8u] RFR: 8196516: libfontmanager must be built with LDFLAGS allowing unresolved symbols

[Severin Gehwolf]

Hi,

Could I please get a review of this change for JDK 8u? We are seing
build failures due to unresolved symbols when building
libfontmanager.so. The build flag to trigger this is to configure with:

--with-extra-ldflags="-Wl,-z,defs"

Attempting a build of JDK 8 with this fails. This has been fixed in JDK
11 and hasn't shown any issues so far. Due to the change in the build
system the JDK 11 patch does not apply cleanly after path unshuffeling
(different context it seems). Hence, asking here for a review before
asking for JDK 8 backport approval.

Bug: https://bugs.openjdk.java.net/browse/JDK-8196516
webrev: http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8196516/webrev.jdk8/

Review thread for JDK 11:
http://mail.openjdk.java.net/pipermail/build-dev/2018-April/021575.html

Thanks,
Severin