2.8. Software Collection Macros

The Software Collection packaging macro scl defines where to relocate the Software Collection's file structure. The relocated file structure is a file system used exclusively by the Software Collection.
The %scl_package macro defines files ownership for the Software Collection's metapackage and provides additional packaging macros to use in the Software Collection environment.
To be able to build a conventional package and a Software Collection package with a single spec file, prefix the Software Collection macros with %{?scl:macro}, as in the following example: 
%{?scl:Requires: %scl_runtime}
In the example above, the %scl_runtime macro is the value of the Requires tag. Both the macro and the tag use the %{?scl: prefix.

2.8.1. Macros Specific to a Software Collection

The table below shows a list of all macros specific to a particular Software Collection. All the macros have default values that you will not need to change in most cases.

Table 2.1. Software Collection Specific Macros

Macro
Description
Example value
%scl_name
name of the Software Collection
software_collection_1
%scl_prefix
name of the Software Collection with a dash appended at the end
software_collection_1-
%pkg_name
name of the original package
perl
%_scl_prefix
root of the Software Collection (not package's root)
/opt/provider/
%_scl_scripts
location of Software Collection's scriptlets
/opt/provider/software_collection_1/
%_scl_root
installation root (install-root) of the package
/opt/provider/software_collection_1/root/
%scl_require_package software_collection_1 package_2
depend on a particular package from a specific Software Collection
software_collection_1-package_2