[jira] [Created] (MYNEWT-323) Newt - Build options precedence hierarchy

["Christopher Collins (JIRA)" <ji...@apache.org>]

Christopher Collins created MYNEWT-323:
------------------------------------------

             Summary: Newt - Build options precedence hierarchy
                 Key: MYNEWT-323
                 URL: https://issues.apache.org/jira/browse/MYNEWT-323
             Project: Mynewt
          Issue Type: Bug
          Components: t, Newt
            Reporter: Christopher Collins


When two packages specify conflicting build options, it is undefined which one takes effect.  Worse, if two packages specify conflicting cflags (e.g., "-DLOG_LEVEL=0" and "-DLOG_LEVEL=1"), gcc reports an error and aborts the build.

We should enforce a well-defined precedence hierarchy.  I'm thinking something like this (lowest priority first):
* Library
* BSP
* App
* Target

In the case of conflicting options, newt should discard all but the highest priority.  Newt would need to do some simple parsing of cflags to identity conflicts.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)