[gentoo-dev] inherit nowarn

[Spider <spider@gentoo.org>]

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well, this is a little RFC...

Since (according to the gcc FAQ, and "common sense" ) the flags -Wall
and other extra warnings, pedantic and so on would requires more
time/output to work, I'm suggesting a simple(?) eclass to recursively
parse a source tree, match all "Makefile" and "makefile" and strip out
extra warning flags from them.

Why? Simple speed/convenience in many cases.
Example, mozilla currently does a loooot of bad warnings due to gcc 3.1
incompabilities (deprecated headers)

that sort of thing could be fixed with a "inherit nowarn" and
"strip_warnings()" 

quoting gcc faq:

  Note  that  using -pedantic or -Wreturn-type can cause an explosion in
   the  amount of memory needed for template-heavy C++ code, such as
code
   that  uses STL. Also note that -Wall includes -Wreturn-type, so if
you
   use -Wall you will need to specify -Wno-return-type to turn it off.

one way would be to add "-Wnoall" (not sure aobut this) and others would
be to simply match "pedantic" "Wall" "Wdeprecated" and add a
"Wno-deprecated" to kill all warnings.

ideas on this approach please?

//Spider



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