Compile error in transaction_reader.cc

[Trond Norbye]

transaction_reader.cc doesn't compile on 32bit platforms

gmake[3]: Entering directory `/source/drizzle/bug_441106/drizzled/message'
source='transaction_reader.cc' object='transaction_reader.o' libtool=no \
        DEPDIR=.deps depmode=dashXmstdout /bin/sh ../../config/depcomp \
        CC -xlang=c99 -DHAVE_CONFIG_H -I../.. -I../.. -I../../gnulib -I../../gnulib -I/usr/local/include -I/opt/drizzle/include -I//opt/google/include -D_REENTRANT -mt -compat=5 -library=stlport4 -template=no%extdef -g0 -xO3 -xlibmil -xdepend -xbuiltin +w +w2 -xwe -xport64 -errtags=yes -erroff=attrskipunsup,doubunder,reftotemp,inllargeuse,truncwarn1,signextwarn,inllargeint -errwarn=%all -erroff=attrskipunsup,doubunder,reftotemp,wbadinitl,identexpected,inllargeuse,truncwarn1,signextwarn,partinit,notused,badargtype2w,wbadinit -c -o transaction_reader.o transaction_reader.cc
"transaction_reader.cc", line 147: Error, truncwarn: Conversion of 64 bit type value to "int" causes truncation.
1 Error(s) detected.