PKGCONF(1) BSD General Commands Manual PKGCONF(1)NAMEpkgconf — a system for configuring build dependency information
SYNOPSISpkgconf [options] [list of modules]
DESCRIPTIONpkgconf 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 regis‐
tered 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 speci‐
fied version.
--max-version=VERSION
Exit with error if a module's version is greater than the speci‐
fied 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 vari‐
able 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 interdependen‐
cies.
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
