Showing Information of Packages
You can get detailed information of a package using the
spack info command:
spack info <package_name>
For example, to show the detailed information of the
zlib package, type:
spack info zlib
Package: zlib Description: A free, general-purpose, legally unencumbered lossless data-compression library. Homepage: http://zlib.net Tags: None Preferred version: 1.2.11 http://zlib.net/fossils/zlib-1.2.11.tar.gz Safe versions: 1.2.11 http://zlib.net/fossils/zlib-1.2.11.tar.gz 1.2.8 http://zlib.net/fossils/zlib-1.2.8.tar.gz 1.2.3 http://zlib.net/fossils/zlib-1.2.3.tar.gz Variants: Name [Default] Allowed values Description ============== ============== ================================================ optimize [on] on, off Enable -O2 for a more optimized lib pic [on] on, off Produce position-independent code (for shared libs) shared [on] on, off Enables the build of shared libraries. Installation Phases: install Build Dependencies: None Link Dependencies: None Run Dependencies: None Virtual Packages: None
From the above output, you can have a general idea about the package by looking at the description part.
Also, the package information lists the available versions of the package;
1.2.11 which is the default version,
Furthermore, the output shows the variants and their value types. For example,
optimize is boolean and its default value is always ON.
The output shows that there are no dependencies of the