I'm debugging a closed-source software installer that seems to have some pre-conceived notions about my distribution. The installation aborts after not finding apt-get. The command it attempts to run is:apt-get -y -q install linux-headers-3.7.5-1-ARCHI suppose the package name comes from /usr/src, where the sole entry is linux-3.7.5-1-ARCH. Does anyone have any educated guess as to which package I should install with pacman?The headers are probably going to be used to compile drivers for custom hardware.Here is some relevant text from the install log:NOTE: Linux drivers must be built against the kernel sources for the kernel  that your Linux OS is currently running. This script automates this task  for you.NOTE: You must have the Linux OS kernel header source files installed.  If you plan on running the Jungo Debug Monitor, then you may also  need to install compat-libstdc++ and libpng3.Your Linux is currently running the following kernel version:  3.7.5-1-ARCH
What package could linux-headers-3.7.5-1-ARCH mean?
linux;arch linux;compiling;kernel modules;header file
You're running Arch linux. According to pacman -Q -i linux-headers, the package linux-headers contains Header files and scripts for building modules for linux kernel. When the linux kernel gets built, various constants, which might be numbers or strings or what have you, get defined.  Some loadable modules need to know those numbers or strings. The files in linux-headers should contain all the build-specific numbers, strings etc for the kernel, in your case kernel version 3.7.5-1 .You can see what files package linux-headers owns: pacman -Q -l linux-headersYou can install package linux-headers as root: pacman -S linux-headersThe apt-get part of the script seems to assume you're running Debian or a derivative.  Install linux-headers with pacman and see how it goes.