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PKGCONF(1) BSD General Commands Manual PKGCONF(1)

NAME

pkgconf — a system for configuring build dependency information

SYNOPSIS

pkgconf [options] [list of modules]

DESCRIPTION

pkgconf is a program which helps to configure compiler and linker flags for development frameworks. This allows build systems to detect other dependencies and use them with the system toolchain.

GENERAL OPTIONS
−-version

Display the supported pkg-config version and exit.

−-atleast-pkgconfig-version=VERSION

Exit with error if we do not support the requested pkg-config version.

−-errors-to-stdout

Print all errors on the main output stream instead of the error output stream.

−-silence-errors

Do not display any errors at all.

−-list-all

Walk all directories listed in the PKG_CONFIG_PATH environmental variable and display information on packages which have registered information there.

−-simulate

Simulates resolving a dependency graph based on the requested modules on the command line. Dumps a series of trees denoting pkgconf’s resolver state.

−-no-cache

Skip caching packages when they are loaded into the internal resolver. This may result in an alternate dependency graph being computed.

−-ignore-conflicts

Ignore ‘Conflicts’ rules in modules.

−-env-only

Learn about pkgconf’s configuration strictly from environmental variables.

−-maximum-traverse-depth=DEPTH

Impose a limit on the allowed depth in the dependency graph. For example, a depth of 2 will restrict the resolver from acting on child dependencies of modules added to the resolver’s solution.

−-static

Compute a deeper dependency graph and use compiler/linker flags intended for static linking.

MODULE-SPECIFIC OPTIONS
−-atleast-version
=VERSION

Exit with error if a module’s version is less than the specified version.

−-exact-version=VERSION

Exit with error if a module’s version is not exactly the specified version.

−-max-version=VERSION

Exit with error if a module’s version is greater than the specified version.

−-exists

Exit with a non-zero result if the dependency resolver was able to find all of the requested modules.

−-uninstalled

Exit with a non-zero result if the dependency resolver uses an ‘uninstalled’ module as part of it’s solution.

−-no-uninstalled

Forbids the dependency resolver from considering ’uninstalled’ modules as part of a solution.

QUERY-SPECIFIC OPTIONS
−-cflags
, −-cflags-only-I, −-cflags-only-other

Display either all CFLAGS, only −I CFLAGS or only CFLAGS that are not −I.

−-libs, −-libs-only-L, −-libs-only-l, −-libs-only-other

Display either all linker flags, only −L linker flags, only −l linker flags or only linker flags that are not −L or −l.

−-keep-system-cflags, −-keep-system-libs

Keep CFLAGS or linker flag fragments that would be filtered due to being included by default in the compiler.

−-define-variable=VARNAME=VALUE

Define VARNAME as VALUE. Variables are used in query output, and some modules’ results may change based on the presence of a variable definition.

−-print-variables

Print all seen variables for a module to the output channel.

−-variable=VARNAME

Print the value of VARNAME.

−-print-requires, −-print-requires-private

Print the modules included in either the Requires field or the Requires.private field.

−-digraph

Dump the dependency resolver’s solution as a graphviz ‘dot’ file. This can be used with graphviz to visualize module interdependencies.

ENVIRONMENT
PKG_CONFIG_PATH

List of directories where ‘.pc’ files are looked up.

PKG_CONFIG_SYSROOT_DIR

‘sysroot’ directory, will be prepended to every path defined in PKG_CONFIG_PATH. Useful for cross compilation.

EXAMPLES

Displaying the CFLAGS of a package:

$ pkgconf --cflags foo
-fPIC -I/usr/include/foo

BSD February 2, 2015 BSD

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