Makefile help: setting HOTSPOT_EXTRA_SYSDEFS
David.Holmes at oracle.com
Wed Jun 16 22:00:36 PDT 2010
<sigh> User error. I had the wrong condition (misuse of " ") and my else
clause was ignored because I had #else instead of just else - doh!
For the record the -p option (to print the Make database) helped me
realize what was wrong.
David Holmes said the following on 06/16/10 11:27:
> I originally asked this internally to my HS colleagues but alas no
> solution. Any Make gurus out there? ;-)
> A further note: the obvious reason for this to fail would be because
> defs.make is not processed before launching the buildtree.make sub-make,
> but AFAICS it is processed.
> David Holmes said the following on 06/15/10 19:14:
>> If I set HOTSPOT_EXTRA_SYSDEFS in the environment or pass it as a
>> variable to the top-level make invocation then it works fine and
>> buildtree.make will see it and use it in the makefiles that it generates.
>> However, I want to set it in the top-level defs.make based on some
>> other values. I do that and export it so that submakes will see it -
>> but they don't: buildtree.make sees HOTSPOT_EXTRA_SYSDEFS as empty.
>> I've tried setting it using += and := but they both fail to set it for
>> the sub-make.
>> Using "make -d" is no help at all as it doesn't show how it evaluates
>> things (the way sh -x does). :(
>> Does anybody know how I can set this?
More information about the build-dev