hg: build-infra/jdk9/jdk: * Fix -lm properly.

[magnus.ihse.bursie at oracle.com]

Changeset: 6fe8227ff7a3
Author:    ihse
Date:      2016-02-16 20:46 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk9/jdk/rev/6fe8227ff7a3

* Fix -lm properly.
* Fix makefiles to silence warnings on Windows
* Fix broken setup of native build tools
* Make DTDParser quiet.

! make/gensrc/GensrcMisc.gmk
! make/lib/Awt2dLibraries.gmk
! make/lib/CoreLibraries.gmk
! make/lib/Lib-java.instrument.gmk
! make/lib/Lib-jdk.jdi.gmk
! make/lib/Lib-jdk.jdwp.agent.gmk
! make/src/classes/build/tools/dtdbuilder/DTDParser.java