Review for 7141244: build-infra merge: Include $(SPEC) in makefiles and make variables overridable

[Erik Joelsson]

New webrev:
http://cr.openjdk.java.net/~erikj/7141244/webrev.04/
175 lines changed: 87 ins; 29 del; 59 mod; 3970 unchg

I discovered that the -include $(SPEC) line needed to be added to the 
make/{bsd,solaris,linux}/makefiles/buildtree.make files. Otherwise the 
hotspot build won't respect setting OPENJDK=true in the spec.

It seems the windows build isn't respecting the OPENJDK variable today 
so I won't bother fixing that.

/Erik

On 2012-02-07 17:30, Erik Joelsson wrote:
> http://cr.openjdk.java.net/~erikj/7141244/webrev.00/ 
> <http://cr.openjdk.java.net/%7Eerikj/7141244/webrev.00/>
> 178 lines changed: 115 ins; 7 del; 56 mod; 4625 unchg
>
> 7141244: build-infra merge: Include $(SPEC) in makefiles and make 
> variables overridable
>
> The build-infra project is starting to move into jdk8. For the hotspot 
> build to stay compatible with the changes, key hotspot makefiles need 
> to add an optional include statement:
>
>
> -include $(SPEC)
>
> In the new build system, the spec file is generated by configure and 
> contains the configuration for the build. Only a handfull of files 
> need to add this line.
>
> In addition to including the spec file, some variables need to be 
> changed to only be set conditionally so that a value from the spec 
> file takes precedence. These are: CC, CXX, CPP, AS, MCS, STRIP, NM, 
> NAWK (and for windows RC and MT). The hotspot makefiles should check 
> each variable if it's already set or if it has a gnumake default value.
>
> These changes have been verified to work for hotspot-rt. Jdk7u will be 
> verified as well before pushing.
>
> /Erik
>