forked from ariadne/pkgconf
137 lines
4.6 KiB
Groff
137 lines
4.6 KiB
Groff
.\" Copyright (c) 2011, 2012, 2013, 2014 pkgconf authors (see AUTHORS).
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.\"
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.\" Permission to use, copy, modify, and/or distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" This software is provided 'as is' and without any warranty, express or
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.\" implied. In no event shall the authors be liable for any damages arising
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.\" from the use of this software.
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.Dd February 2, 2015
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.Dt PKGCONF 1
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.Os
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.Sh NAME
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.Nm pkgconf
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.Nd a system for configuring build dependency information
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.Sh SYNOPSIS
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.Nm
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.Op Ar options
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.Op Ar list of modules
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.Sh DESCRIPTION
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.Nm
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is a program which helps to configure compiler and linker flags for
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development frameworks. This allows build systems to detect other dependencies
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and use them with the system toolchain.
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.Sh GENERAL OPTIONS
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.Bl -tag -width indent
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.It Fl -version
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Display the supported pkg-config version and exit.
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.It Fl -atleast-pkgconfig-version Ns = Ns Ar VERSION
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Exit with error if we do not support the requested pkg-config version.
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.It Fl -errors-to-stdout
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Print all errors on the main output stream instead of the error output stream.
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.It Fl -silence-errors
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Do not display any errors at all.
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.It Fl -list-all
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Walk all directories listed in the
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.Va PKG_CONFIG_PATH
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environmental variable and display information on packages which have registered
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information there.
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.It Fl -simulate
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Simulates resolving a dependency graph based on the requested modules on the
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command line. Dumps a series of trees denoting pkgconf's resolver state.
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.It Fl -no-cache
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Skip caching packages when they are loaded into the internal resolver. This may
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result in an alternate dependency graph being computed.
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.It Fl -ignore-conflicts
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Ignore
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.Sq Conflicts
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rules in modules.
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.It Fl -env-only
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Learn about pkgconf's configuration strictly from environmental variables.
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.It Fl -maximum-traverse-depth Ns = Ns Ar DEPTH
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Impose a limit on the allowed depth in the dependency graph. For example, a
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depth of 2 will restrict the resolver from acting on child dependencies of
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modules added to the resolver's solution.
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.It Fl -static
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Compute a deeper dependency graph and use compiler/linker flags intended for
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static linking.
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.El
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.Sh MODULE-SPECIFIC OPTIONS
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.Bl -tag -width indent
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.It Fl -atleast-version Ns = Ns Ar VERSION
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Exit with error if a module's version is less than the specified version.
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.It Fl -exact-version Ns = Ns Ar VERSION
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Exit with error if a module's version is not exactly the specified version.
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.It Fl -max-version Ns = Ns Ar VERSION
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Exit with error if a module's version is greater than the specified version.
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.It Fl -exists
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Exit with a non-zero result if the dependency resolver was able to find all of
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the requested modules.
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.It Fl -uninstalled
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Exit with a non-zero result if the dependency resolver uses an
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.Sq uninstalled
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module as part of it's solution.
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.It Fl -no-uninstalled
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Forbids the dependency resolver from considering 'uninstalled' modules as part
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of a solution.
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.El
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.Sh QUERY-SPECIFIC OPTIONS
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.Bl -tag -width indent
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.It Fl -cflags Ns , Fl -cflags-only-I Ns , Fl -cflags-only-other
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Display either all CFLAGS, only
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.Fl I
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CFLAGS or only CFLAGS that are not
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.Fl I .
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.It Fl -libs Ns , Fl -libs-only-L Ns , Fl -libs-only-l Ns , Fl -libs-only-other
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Display either all linker flags, only
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.Fl L
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linker flags, only
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.Fl l
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linker flags or only linker flags that are not
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.Fl L
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or
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.Fl l .
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.It Fl -keep-system-cflags Ns , Fl -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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.It Fl -define-variable Ns = Ns Ar VARNAME Ns = Ns Ar VALUE
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Define
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.Va VARNAME
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as
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.Va VALUE .
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Variables are used in query output, and some modules' results may change based
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on the presence of a variable definition.
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.It Fl -print-variables
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Print all seen variables for a module to the output channel.
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.It Fl -variable Ns = Ns Ar VARNAME
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Print the value of
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.Va VARNAME .
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.It Fl -print-requires Ns , Fl -print-requires-private
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Print the modules included in either the
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.Va Requires
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field or the
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.Va Requires.private
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field.
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.It Fl -digraph
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Dump the dependency resolver's solution as a graphviz
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.Sq dot
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file. This can be used with graphviz to visualize module interdependencies.
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.El
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.Sh ENVIRONMENT
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.Bl -tag -width indent
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.It Va PKG_CONFIG_PATH
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List of directories where
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.Sq .pc
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files are looked up.
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.It Va PKG_CONFIG_SYSROOT_DIR
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.Sq sysroot
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directory, will be prepended to every path defined in
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.Va PKG_CONFIG_PATH .
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Useful for cross compilation.
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.El
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.Sh EXAMPLES
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Displaying the CFLAGS of a package:
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.Dl $ pkgconf --cflags foo
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.Dl -fPIC -I/usr/include/foo
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