forked from ariadne/pkgconf
234 lines
6.8 KiB
Markdown
234 lines
6.8 KiB
Markdown
PKGCONF(1)
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; SPDX-FileCopyrightText: 2022 pkgconf authors
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; SPDX-License-Identifier: ISC
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# NAME
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pkgconf — a system for configuring build dependency information
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# SYNOPSIS
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*pkgconf* [_options_] [_list of modules_]
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# DESCRIPTION
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*pkgconf* is a program which helps to configure compiler and linker flags for
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development libraries. This allows build systems to detect other dependencies
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and use them with the system toolchain.
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# GENERAL OPTIONS
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*--atleast-pkgconfig-version*=_VERSION_
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Exit with error if we do not support the requested pkg-config version.
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*--define-prefix*
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Attempts to determine the prefix variable to use for CFLAGS and LIBS entry
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relocations. This is mainly useful for platforms where framework SDKs are
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relocatable, such as Windows.
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*--dont-define-prefix*
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Disables the ‘define-prefix’ feature.
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*--dont-relocate-paths*
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Disables the path relocation feature.
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*--env-only*
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Learn about pkgconf's configuration strictly from environmental variables.
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*--errors-to-stdout*
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Print all errors on the main output stream instead of the error output
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stream.
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*--ignore-conflicts*
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Ignore ‘Conflicts’ rules in modules.
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*--list-all*
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Walk all directories listed in the _PKG_CONFIG_PATH_ environmental variable
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and display information on packages which have registered information there.
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*--maximum-traverse-depth*=_DEPTH_
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Impose a limit on the allowed depth in the dependency graph. For example,
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a depth of 2 will restrict the resolver from acting on child dependencies
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of modules added to the resolver's solution.
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*--no-cache*
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Skip caching packages when they are loaded into the internal resolver.
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This may result in an alternate dependency graph being computed.
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*--no-provides*
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Ignore ‘Provides’ rules in modules when resolving dependencies.
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*--prefix-variable*=_VARIABLE_
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Sets the ‘prefix’ variable used by the ‘define-prefix’ feature.
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*--pure*
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Treats the computed dependency graph as if it were pure. This is mainly
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intended for use with the *--static* flag.
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*--relocate*=_PATH_
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Relocates a path using the pkgconf_path_relocate API. This is mainly used
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by the testsuite to provide a guaranteed interface to the system's path
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relocation backend.
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*--shared*
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Compute a simple dependency graph that is only suitable for shared linking.
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*--silence-errors*
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Do not display any errors at all.
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*--simulate*
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Simulates resolving a dependency graph based on the requested modules on
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the command line. Dumps a series of trees denoting pkgconf's resolver state.
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*--static*
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Compute a deeper dependency graph and use compiler/linker flags intended
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for static linking.
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*--with-path*=_PATH_
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Adds a new module search path to pkgconf's dependency resolver. Paths added
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in this way are given preference before other paths.
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*--validate* _package ..._
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Validate specific ‘.pc’ files for correctness.
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*--version*
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Display the supported pkg-config version and exit.
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# MODULE-SPECIFIC OPTIONS
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*--atleast-version*=_VERSION_
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Exit with error if a module's version is less than the specified version.
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*--exact-version*=_VERSION_
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Exit with error if a module's version is not exactly the specified version.
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*--exists*
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Exit with a non-zero result if the dependency resolver was unable to find
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all of the requested modules.
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*--max-version*=_VERSION_
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Exit with error if a module's version is greater than the specified
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version.
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*--no-uninstalled*
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Forbids the dependency resolver from considering 'uninstalled' modules as
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part of a solution.
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*--uninstalled*
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Exit with a non-zero result if the dependency resolver uses an
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‘uninstalled’ module as part of its solution.
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# QUERY-SPECIFIC OPTIONS
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*--cflags*, *--cflags-only-I*, *--cflags-only-other*
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Display either all CFLAGS, only *-I* CFLAGS or only CFLAGS that are not
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*-I*.
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*--define-variable*=_VARNAME_=_VALUE_
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Define _VARNAME_ as _VALUE_. Variables are used in query output, and some
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modules' results may change based on the presence of a variable definition.
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*--digraph*
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Dump the dependency resolver's solution as a graphviz ‘dot’ file. This can
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be used with graphviz to visualize module interdependencies.
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*--env*=_VARNAME_
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Print the requested values as variable declarations in a similar format as
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the *env*(1) command.
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*--fragment-filter*=_TYPES_
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Filter the fragment lists for the specified types.
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*--libs*, *--libs-only-L*, *--libs-only-l*, *--libs-only-other*
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Display either all linker flags, only *-L* linker flags, only *-l* linker
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flags or only linker flags that are not *-L* or *-l*.
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*--modversion*
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Print the version of the queried module.
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*--keep-system-cflags*, *--keep-system-libs*
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Keep CFLAGS or linker flag fragments that would be filtered due to being
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included by default in the compiler.
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*--path*
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Display the filenames of the ‘.pc’ files used by the dependency resolver for
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a given dependency set.
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*--print-provides*
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Print all relevant ‘Provides’ entries for a module to the output channel.
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*--print-requires*, *--print-requires-private*
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Print the modules included in either the Requires field or the
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Requires.private field.
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*--print-variables*
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Print all seen variables for a module to the output channel.
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*--variable*=_VARNAME_
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Print the value of _VARNAME_.
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# ENVIRONMENT
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_DESTDIR_
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If set to _PKG_CONFIG_SYSROOT_DIR_, assume that
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_PKG_CONFIG_FDO_SYSROOT_RULES_ is set.
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_PKG_CONFIG_DEBUG_SPEW_
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If set, enables additional debug logging. The format of the debug log
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messages is implementation-specific.
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_PKG_CONFIG_DISABLE_UNINSTALLED_
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If set, enables the same behaviour as the *--no-uninstalled* flag.
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_PKG_CONFIG_DONT_RELOCATE_PATHS_
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If set, disables the path relocation feature.
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_PKG_CONFIG_FDO_SYSROOT_RULES_
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If set, follow the sysroot prefixing rules that freedesktop.org pkg-config
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uses.
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_PKG_CONFIG_LIBDIR_
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List of primary directories where ‘.pc’ files are looked up.
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_PKG_CONFIG_LOG_
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‘logfile’ which is used for dumping audit information concerning installed
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module versions.
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_PKG_CONFIG_MSVC_SYNTAX_
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If set, uses MSVC syntax for fragments.
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_PKG_CONFIG_PATH_
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List of secondary directories where ‘.pc’ files are looked up.
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_PKG_CONFIG_PURE_DEPGRAPH_
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If set, enables the same behaviour as the *--pure* flag.
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_PKG_CONFIG_SYSROOT_DIR_
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‘sysroot’ directory, will be prepended to every path defined in
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PKG_CONFIG_PATH. Useful for cross compilation.
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_PKG_CONFIG_SYSTEM_INCLUDE_PATH_
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List of paths that are considered system include paths by the toolchain.
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This is a pkgconf-specific extension.
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_PKG_CONFIG_SYSTEM_LIBRARY_PATH_
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List of paths that are considered system library paths by the toolchain.
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This is a pkgconf-specific extension.
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_PKG_CONFIG_TOP_BUILD_DIR_
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Provides an alternative setting for the ‘pc_top_builddir’ global variable.
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# EXAMPLES
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Displaying the CFLAGS of a package:
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```
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$ pkgconf --cflags foo
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-fPIC -I/usr/include/foo
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```
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# SEE ALSO
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*pc*(5), *pkg.m4*(7)
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