g-h-d wrote: > > > Ian Lance Taylor-3 wrote: >> >>> I am trying to install mcmc++ >>> (http://darwin.eeb.uconn.edu/mcmc++/mcmc++-1.2.tar.gz) using ./configure >>> and >>> make (see error below). The culprit is the following line of code in file >>> lot.cpp:52 >>> >>> namespace lot_conditions { >>> BOOST_STATIC_ASSERT(sizeof(long) * CHAR_BIT == 32); >>> } >>> >>> I suspect this has to do with 64bits. Please help. >> If you are trying to build this code in 64-bit mode, you are out of >> luck. You have to change the source code. We can't help. >> >> Ian >> >> > > Thanks. What exactly do you mean by in "64-bit mode"? Is there a command for > building that switches to 32bit? > > My CPU is 64 but also 32 compatible (Intel core duo 2) and that my OS > (Ubuntu) is set up for 64. That's about all I know. > > > If you have 64-bit OS (uname shows x86-64), your gcc defaults to 64-bit mode, unless you set -m32. The code fragment you quote appears designed to throw an assertion failure, if data types don't default to expected sizes. If they wanted a 32-bit unsigned integer, there are standard C data types for that.
