Same problem in the Mageia distribution - the cross-compiler broke after
an upgrade of gcc - avr-binutils had to be upgraded correspondingly
before re-building the cross-compiler.
With the combination of binutils 2.23 and gcc 4.72 the cross-compiler
now builds OK, using the standard make procedures from the avr-gcc
tarball. You might want to have a look at the Mageia spec-file in the
Mageia svn at svnweb.mageia.org, going down the tree via packages and
cauldron (that is the development version). This is now distributed both
with the stable Mageia-2 and the development version.
And yes, user code also needs a lot of upgrading, not only
the problem of needing const declarations with PROGMEM, but also that
memory-type specifications must not be used any more with type
declarations - another one of the "more corrects".
Jürgen
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