Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 04-08-2006 Installation Manual page 382

For example, to compile a program that uses libaio on a system whose second archi-
tecture is a 32-bit architecture (x86_64 or s390x), you need the following RPMs:
libaio-32bit
32-bit runtime package
libaio-devel-32bit
Headers and libraries for 32-bit development
libaio
64-bit runtime package
libaio-devel
64-bit development headers and libraries
Most open source programs use an autoconf-based program configuration. To use
autoconf for configuring a program for the second architecture, overwrite the normal
compiler and linker settings of autoconf by running the configure script with
additional environment variables.
The following example refers to an x86_64 system with x86 as the second architecture.
Examples for s390x with s390 as the second architecture or ppc64 with ppc as the second
architecture would be similar. This example does not apply to ia64 where you do not
build 32-bit packages.
1 Use the 32-bit compiler:
2 Instruct the linker to process 32-bit objects (always use gcc as the linker front-
3 Set the assembler to generate 32-bit objects:
4 Determine that the libraries for libtool and so on come from /usr/lib:
382 Installation and Administration
CC="gcc -m32"
end):
LD="gcc -m32"
AS="gcc -c -m32"
LDFLAGS="-L/usr/lib"