Support building packages for Arch Linux. See fork https://github.com/xsmile/rtorrent-ps for changes to the build script.

Things to consider:

• different package naming conventions
• architecture specific CPPFLAGS, CFLAGS, CXXFLAGS, LDFLAGS, MAKEFLAGS can be sourced from /etc/makepkg.conf
• creating a package: RT_PS_VERSION, RT_PS_REVISION must not contain a hyphen (-)

Attached are a log files for the "install" and "pkg2pacman" operations, in case you want to trace the whole process yourself: rtorrent-ps-arch.zip

$ lsb_release -a
LSB Version:	1.4
Distributor ID:	Arch
Description:	Arch Linux
Release:	rolling
Codename:	n/a

$ gcc --version | head -n1 | tr -s '()' ' ' | cut -f2 -d' '
GCC