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   dpkg-buildflags    ( 1 )

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Команды (Commands)

--dump Print to standard output all compilation flags and their values. It prints one flag per line separated from its value by an equal sign ('flag=value'). This is the default action.

--list Print the list of flags supported by the current vendor (one per line). See the SUPPORTED FLAGS section for more information about them.

--status Display any information that can be useful to explain the behaviour of dpkg-buildflags (since dpkg 1.16.5): relevant environment variables, current vendor, state of all feature flags. Also print the resulting compiler flags with their origin.

This is intended to be run from debian/rules, so that the build log keeps a clear trace of the build flags used. This can be useful to diagnose problems related to them.

--export=format Print to standard output commands that can be used to export all the compilation flags for some particular tool. If the format value is not given, sh is assumed. Only compilation flags starting with an upper case character are included, others are assumed to not be suitable for the environment. Supported formats:

sh Shell commands to set and export all the compilation flags in the environment. The flag values are quoted so the output is ready for evaluation by a shell.

cmdline Arguments to pass to a build program's command line to use all the compilation flags (since dpkg 1.17.0). The flag values are quoted in shell syntax.

configure This is a legacy alias for cmdline.

make Make directives to set and export all the compilation flags in the environment. Output can be written to a makefile fragment and evaluated using an include directive.

--get flag Print the value of the flag on standard output. Exits with 0 if the flag is known otherwise exits with 1.

--origin flag Print the origin of the value that is returned by --get. Exits with 0 if the flag is known otherwise exits with 1. The origin can be one of the following values:

vendor the original flag set by the vendor is returned;

system the flag is set/modified by a system-wide configuration;

user the flag is set/modified by a user-specific configuration;

env the flag is set/modified by an environment-specific configuration.

--query Print any information that can be useful to explain the behaviour of the program: current vendor, relevant environment variables, feature areas, state of all feature flags, and the compiler flags with their origin (since dpkg 1.19.0).

For example: Vendor: Debian Environment: DEB_CFLAGS_SET=-O0 -Wall

Area: qa Features: bug=no canary=no

Area: reproducible Features: timeless=no

Flag: CFLAGS Value: -O0 -Wall Origin: env

Flag: CPPFLAGS Value: -D_FORTIFY_SOURCE=2 Origin: vendor

--query-features area Print the features enabled for a given area (since dpkg 1.16.2). The only currently recognized areas on Debian and derivatives are future, qa, reproducible, sanitize and hardening, see the FEATURE AREAS section for more details. Exits with 0 if the area is known otherwise exits with 1.

The output is in RFC822 format, with one section per feature. For example:

Feature: pie Enabled: yes

Feature: stackprotector Enabled: yes

--help Show the usage message and exit.

--version Show the version and exit.