RFR: 8326947: Minimize MakeBase.gmk

[Magnus Ihse Bursie]

On Wed, 28 Feb 2024 11:24:06 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> This is part of a general "spring cleaning" of the build system, addressing old code that has bit-rotted, been subject to lava flow, or just had bad or smelly code that we've never gotten around to fix.
> 
> This particular patch tries to make MakeBase truly minimal; only including the core parts of the build system that all makefiles will need. This is now limited to essential functionality for named parameter functions, variable dependency, tool execution, logging and fixpath functionality. MakeBase still includes Utils.gmk and FileUtils.gmk, and thus "provides" this functionality as well. Separating these out as well will be the subject of a future patch.

I have verified using `COMPARE_BUILD` on windows-x64, linux-x64, linux-aarch64, macosx-x64 and macosx-aarch64 that there are no differences in the resulting build.

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PR Comment: https://git.openjdk.org/jdk/pull/18041#issuecomment-1968778732