Unfortunately I don't have access to a x86_64 machine with a 32bits chroot to test my self so maybe you can do the following tests.
lazbuild -h
and report the output defafult CPU. Here it gives
--cpu=<cpu>
override the project cpu. e.g. i386 x86_64 powerpc
powerpc_64 etc. default: i386
According to the source code, this will report the architecture for
which lazbuild was compiled
lowerCase({$I %FPCTARGETCPU%})
So unless you are using a 64 bit lazbuild executable, I don't see how it
can detect a x86_64. Maybe you can also report the output of
file $(readlink -m $(which lazbuild))
here it gives
/usr/lib/lazarus/0.9.30/lazbuild: ELF 32-bit LSB executable, Intel 80386,
version 1 (SYSV), dynamically linked (uses shared libs), stripped
Cheers,
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