Debian dpkg-buildflags version 1.18.4. This is free software; see the GNU General Public License version 2 or later for copying conditions. There is NO warranty.

Usage: dpkg-buildflags [<command>] Commands: --get <flag> output the requested flag to stdout. --origin <flag> output the origin of the flag to stdout: value is one of vendor, system, user, env. --query-features <area> output the status of features for the given area. --list output a list of the flags supported by the current vendor. --export=(sh|make|cmdline|configure) output something convenient to import the compilation flags in a shell script, in make, or in a command line. --dump output all compilation flags with their values --status print a synopsis with all parameters affecting the behaviour of dpkg-buildflags and the resulting flags and their origin. --help show this help message. --version show the version.