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For developing policy modules, the selinux-policy-devel package includes all of the interface files used to build policy. It is recommended that people who build policy use these files to build the policy modules.
This package installs the policy interface files under /usr/share/selinux/devel/include and has make files installed in /usr/share/selinux/devel/Makefile.
To help applications that need the various SELinux paths, libselinux provides a number of functions that return the paths to the different configuration files and directories. This negates the need for applications to hard-code the paths, especially since the active policy location is dependent on the SELINUXTYPE setting in /etc/selinux/config.
For example, if SELINUXTYPE is set to strict, the active policy location is under /etc/selinux/strict.
To view the list of available functions, use the following command:
man 3 selinux_binary_policy_path


This man page is available only if you have the libselinux-devel RPM installed.
The use of libselinux and related functions is outside the scope of this document.