Re: [gentoo-dev] fix binary debug support, part elevenity billion 1/2

[Mike Frysinger]

On Sunday 15 January 2006 01:11, Mike Frysinger wrote:
> this topic has come up before too many times and has yet to be solved, and
> we have too many hacks in place

ok, so after sitting on the list for a while and accumulating feedback, how 
about this:

- USE=debug *never* changes CFLAGS or LDFLAGS or what have you, it *only* 
enables additional runtime code (such as assert()'s or helpful debug 
output) ... if you're confused by what i mean, run `USE=debug emerge nano` 
and then run `nano`

- we add an emerge flag (say '--debug-build') which adds "debug-build" to 
FEATURES

- if "debug-build" is in FEATURES, then the following happens:
 * auto sets CFLAGS to DEBUG_CFLAGS, LDFLAGS to DEBUG_LDFLAGS, CXXFLAGS to 
DEBUG_CXXFLAGS (and in the future, we can add more variables as the need 
comes up)
 * if user already has FEATURES=splitdebug, then do not add "nostrip"
 * if user does not have FEATURES=splitdebug, then add "nostrip" to FEATURES

- we will set sane debug defaults in the base profile:
 * DEBUG_CFLAGS=DEBUG_CXXFLAGS="-O -g"
 * DEBUG_LDFLAGS=""
- subprofiles can tweak these values as they see fit (or as required)

i'll go ahead and start implementing framework for this in the meantime
-mike
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