switching-between-64-and-32-ISOs

Switching between 32 and 64 bit ISO creation
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NOTE: There is no UEFI support for 32bit ISOs.

1. Clear out the pacman cache (prevents mixing of 32 and 64 bit versions of the same packages)
pacman -Scc

2. Edit /syslinux/archiso_sys_both_inc.cfg 
2a. Unhash the desired system build, and hash the undesired one. The example below is for 64bit:

INCLUDE boot/syslinux/archiso_sys64.cfg
#INCLUDE boot/syslinux/archiso_sys32.cfg

This is for 32 bit:
#INCLUDE boot/syslinux/archiso_sys64.cfg
INCLUDE boot/syslinux/archiso_sys32.cfg

3. Edit the packages.* files
3a. Hash all packages in one file and unhash them in the other.

4. Run ./build.sh for 64 bit, or ./build-32.sh for 32 bit.