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Subject: new amd64 compilers
Date: Thu, 7 Jan 2016 04:54:00 +0100
From: cinap_lenrek@felloff.net
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the new 64-bit compilers returns vlong instead of long
for pointer subtraction allowing the use of arrays bigger
than 2gb.

traditionally, the result was a long which is 32-bit on
plan9.

to deal with this, we introduce signed intptr type and
format string modifier %z which can be used to format
pointer sized integers (long on 32-bit arch, vlong
on 64-bit arch).

to update your amd64 system, rebuild 6c first like:

cd /sys/src/cmd/cc; mk install
cd /sys/src/cmd/6c; mk install

then rebuild the whole system:

cd /sys/src; mk clean; mk install

--
cinap