[Mesa-dev] [RFC PATCH] automake: add support to src/glsl/

[Gaetan Nadon]

On Sat, 2011-09-24 at 21:06 -0400, Matt Turner wrote:

> The last discussion about using automake ("[RFC] Convert mesa to
> automake/libtool")
> ended without anything happening, probably because the branch wasn't
> ready.
> 
> This patch is an attempt to get the ball rolling again. Without
> ripping out
> the entire existing build system in one swat, it attempts to gradually
> replace
> it directory by directory with automake. 


Some thoughts here, fresh from the oven, not analyzed:

- I would start from the root makefile and work my way down, invoking
the mesa makefile in the subdirs. It is intuitive, but I don't know if
it is feasible.

- The minimum autoconf version should be 2.60. Features above 2.60
should not be used. Starting v 2.62 there is a license controversy and
some platforms x.org support cannot use anything produce with 2.62 or
above.

- Minimum automake is 1.10. features above 1.10 must be avoided. 

- Decide if mesa is ok depending on util-macros. Lots of things are
taken for granted by x.org developers which won't be there in
automake-mesa. 

There should be some useful info in:
http://wiki.x.org/wiki/ModularDevelopersGuide
http://wiki.x.org/wiki/NewModuleGuidelines
Both are up to date.

Automake has considered coexistence with custome makefile:
http://www.gnu.org/software/automake/manual/automake.html#Third_002dParty-Makefiles
This may help crafting a conversion strategy.

Suggestion:

- Do not use the pair AM_MAINTAINER_MODE and --enable-maintainer-mode in
autogen.sh. They will eventually be removed in x.org. These were created
by Automake as a CVS time stamp workaround. But it's a long story. it's
a noop for git builds.




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