md5 possible gcc bug & MELT plugin for 4.6 workaround

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Basile Starynkevitch

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Sep 16, 2011, 12:50:34 PM9/16/11

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Hello All,

It is probable that Pierre Vittet has hit a naughty bug about md5 in GCC, and notably in
GCC 4.6 (where we can assume the bug will stay).
See http://gcc.gnu.org/ml/gcc-help/2011-09/msg00126.html
and http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00963.html

My assumption is that this (rare) bug won't be corrected in GCC 4.6, but I still want to
release a MELT plugin 0.9 which works.

So perhaps we should change the function meltgc_string_hex_md5sum_file_sequence in
melt-runtime.c (line 5380 and after) so that its bufblock is allocated with a large enough
alignment?

What do you think?

Cheers.

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Basile STARYNKEVITCH http://starynkevitch.net/Basile/
email: basile<at>starynkevitch<dot>net mobile: +33 6 8501 2359
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