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From "Alexey Varlamov (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HARMONY-5359) [drlvm][build] normalized ant build system
Date Tue, 29 Jan 2008 10:46:34 GMT

    [ https://issues.apache.org/jira/browse/HARMONY-5359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12563462#action_12563462

Alexey Varlamov commented on HARMONY-5359:

Egor, I could not reproduce the problem. Touching or modifying any header provokes fair recompilation:
 touch vm/jitrino/src/main/Jitrino.h
     [echo] ## Building 'jitrino'
Overriding previous definition of reference to jit.depends
[compile-cc] Starting dependency analysis for 154 files.
[compile-cc] 35 files are up to date.
[compile-cc] 119 files to be recompiled from dependency analysis.
[compile-cc] 119 total files to be compiled.

I've checked the new system into SVN trunk at revision: 616241, please check how it works
for you.
NB: unified build mode flag is actually "hy.cfg", though legacy "BUILD_CFG" is also supported.
Need to update README yet...

> [drlvm][build] normalized ant build system
> ------------------------------------------
>                 Key: HARMONY-5359
>                 URL: https://issues.apache.org/jira/browse/HARMONY-5359
>             Project: Harmony
>          Issue Type: New Feature
>          Components: build - test - ci, DRLVM
>            Reporter: Alexey Varlamov
>            Assignee: Alexey Varlamov
>         Attachments: 0001-fixed-normalized-build-system-on-linux-x86-classlib-should-be-less-than-revision-612947.txt,
build.zip, build.zip, build.zip
> Need to refactor DRLVM build system was stated since early ages of Harmony, due to its
awkwardness and bad augmentability (one can find a lot of discussons in dev-list archives).
> Here is this long-expected feature, "normalized" ant build system, featuring:
> - improved portability, as it uses unified set of properties defined by classlib, drops
"build.bat/build.sh" wrappers and provides traditional ant interface for users and external
> - better maintainability and robustness, as it does not rely on XSL build preprocessing,
on-fly generated scripts and buggy ant-contrib features (except tests which really need "for"
> - much faster rebuild time even with cpptasks: void build takes only 7-8 sec (and can
be improved a bit more). Also, it is possible to build standalone component w/o rebuilding
dependencies which is also handy.
> - enhanced modularity and plugability: any component or test script can be used independently
(modulo 2-3 shared ant files), simplifying component reusing or redeployment.
> For now, the system lacks facilities for managing external dependencies, it just relies
on presence and layout of artifacts as retrieved via old build.
> The dependency management is to be refactored cross Harmony components, including classlib,
drlvm and jdktools.

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