On 20/08/12 16:18, Juergen Harms wrote:
I am presently switching from a rather obsolete version of avr-gcc
(1.6.1, downloaded as a tarball) to a much newer one (4.6.2, available
in an rpm package on my Mageia distribution),
I am having a lot of small-fry but work-intensive problems (risk of
editing new bugs into my code) - such as the need to declare progmem
variables with "const"- and some annoyance with "-Wuninitialized"
warning messages when declaring external variables wich have been
perfectly correctly defined and initialised in their target module.
Almost certainly, there is something wrong in your code, or in the way
you have declared your external data - the "-Wuninitialized" flag should
not give false positives as you describe. (It can give false positives,
when you know yourself that all code paths that use the data have
initialised the variables but the compiler is unable to prove this.)
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