Re: Everyone working on the C side might want to read this article...

[Rob Browning]

Bruce Korb <address@hidden> writes:

> The default optimization is sufficient for many of the aliasing
> problems.  If you compile with the GCC 3.3 branch -Wall will trigger
> some extra aliasing-related warnings.  Examine the warnings carefully.
> Remember that just because it didn't warn doesn't mean there isn't
> a problem.  However, the warnings do actually cover most of the common
> ways aliasing breaks code.

Anyone running Debian who's interested in working on this, try

  # apt-get install gcc-3.3

  $ cd src/guile/head/
  $ CC=gcc-3.3 ./configure ...
  $ make clean
  $ make

This shouldn't affect your existing gcc 3.2 install, i.e. gcc
--version should still give you 3.2...

We use -Wall -Werror by default now (in the unstable branch), so
you'll get those options automatically.  From an initial test, it
looks like we've at least got a new slew of signed/unsigned compare
warnings.

-- 
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
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