a system for configuring build dependency information
Get the list of libraries and their dependencies
Get the list of libraries, their dependencies, and proper cflags for gcc
Compile your code with libgtk-3, libwebkit2gtk-4.0 and all their dependencies
pkgconf [options] [list of modules]
pkgconf is a program which helps to configure compiler and linker flags for development libraries. This allows build systems to detect other de‐ pendencies and use them with the system toolchain.
--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 re‐ solver. 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. --pure Treats the computed dependency graph as if it were pure. This is mainly intended for use with the --static flag. --no-provides Ignore ‘Provides’ rules in modules when resolving dependencies. --with-path=PATH Adds a new module search path to pkgconf's dependency resolver. Paths added in this way are given preference before other paths. --define-prefix Attempts to determine the prefix variable to use for CFLAGS and LIBS entry relocations. This is mainly useful for platforms where framework SDKs are relocatable, such as Windows. --dont-define-prefix Disables the ‘define-prefix’ feature. --prefix-variable=VARIABLE Sets the ‘prefix’ variable used by the ‘define-prefix’ feature. --relocate=PATH Relocates a path using the pkgconf_path_relocate API. This is mainly used by the testsuite to provide a guaranteed interface to the system's path relocation backend. --dont-relocate-paths Disables the path relocation feature.
--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 unable 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.
--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. --print-provides Print all relevant ‘Provides’ entries 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. --path Display the filenames of the ‘.pc’ files used by the dependency resolver for a given dependency set. --env=VARNAME Print the requested values as variable declarations in a similar format as the env(1) command. --fragment-filter=TYPES Filter the fragment lists for the specified types. --modversion Print the version of the queried module.
PKG_CONFIG_PATH List of secondary directories where ‘.pc’ files are looked up. PKG_CONFIG_LIBDIR List of primary 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. PKG_CONFIG_TOP_BUILD_DIR Provides an alternative setting for the ‘pc_top_builddir’ global variable. PKG_CONFIG_PURE_DEPGRAPH If set, enables the same behaviour as the --pure flag. PKG_CONFIG_SYSTEM_INCLUDE_PATH List of paths that are considered system include paths by the toolchain. This is a pkgconf-specific extension. PKG_CONFIG_SYSTEM_LIBRARY_PATH List of paths that are considered system library paths by the toolchain. This is a pkgconf-specific extension. PKG_CONFIG_DISABLE_UNINSTALLED If set, enables the same behaviour as the --no-uninstalled flag. PKG_CONFIG_LOG ‘logfile’ which is used for dumping audit information concerning installed module versions. PKG_CONFIG_DEBUG_SPEW If set, enables additional debug logging. The format of the de‐ bug log messages is implementation-specific. PKG_CONFIG_DONT_RELOCATE_PATHS If set, disables the path relocation feature.
Displaying the CFLAGS of a package: $ pkgconf --cflags foo -fPIC -I/usr/include/foo