RFR: 8149594 - Clean up Hotspot makefiles

[Jesper Wilhelmsson]

Hi,

Please review this cleanup of the Hotspot makefiles.

Since I have been spending some time in the makefiles lately there were a few 
random cleanups that I couldn't stop myself from doing. Most of these are made 
to make the linux and bsd makefiles more alike. This has helped a lot when 
porting the framework to the different platforms.

There are a couple of preparing alignment changes that I included in this 
cleanup to make the Google test patch easier to review later.

There are also a couple of "real" changes:

* In make/bsd/makefiles/buildtree.make we set up OS_VENDOR with the motivation 
that we don't include defs.make. Three lines below we include defs.make.

* In make/bsd/makefiles/buildtree.make the 'install' target depends on 
'install_jsigs'. There is no rule called 'install_jsigs', it is called 
'install_jsig'.


Another difference that I find interesting but that I have not changed in this 
patch (I can do that if requested) is that in the bsd version of fastdebug.make 
VERSION is set to "fastdebug" but in the linux version it is set to "optimized". 
Given the name of the makefile fastdebug seems more correct, but whichever is 
the correct value, shouldn't they be the same on linux and bsd?


https://bugs.openjdk.java.net/browse/JDK-8149594
http://cr.openjdk.java.net/~jwilhelm/8149594/webrev.00/

Thanks,
/Jesper