Installation prefix, set at compile time and displayed in ${prefix}/etc/macports/macports.conf —- may be overridden on a per-port basis, for example to install into a wholly-contained subdirectory of ${prefix}, but most ports should have no reason to do so.

Default: /opt/local

Path to the MacPorts TCL libraries.

The directory search path for locating system executables (rsync, tar, etc.) during port installation. Only applications in these directories are available while ports are being installed even if other paths are specified by $PATH in a user's environment.

Default: ${prefix}/bin:${prefix}/sbin:/bin:/sbin:/usr/bin:/usr/sbin

Full path to the Portfile of the port being executed. Portfile repositories are defined in the file sources.conf.

Default: ${prefix}/var/macports/sources/rsync.macports.org/release/ports/<category>/<portname>/

Path to files directory relative to ${portpath}.

Value: files

Full path to files directory.

Value: ${portpath}/${filesdir}

Full path to work directory.

Value: ${portbuildpath}/work

Full path to extracted source code.

Value: ${workpath}/${worksrcdir}

Full path into which software will be destrooted.

Value: ${workpath}/destroot

Location to store downloaded distfiles.

Value: ${sysportpath}/distfiles/${dist_subdir}/

The Unix user at the time of port installation.

The Unix group at the time of port installation.

The underlying operating system platform (i.e. "darwin" on Mac OS X, "freebsd", etc.).

The hardware architecture -- either "powerpc" or "i386".

The version number of the host operating system (i.e. "8.11.0" for Darwin 8.11.0 a.k.a. Mac OS X 10.4.11).

Endianness of the processor -- either "big" (on PowerPC systems) or "little" (on Intel systems).

The major version number of the host operating system (i.e. "8" for Darwin 8.x).