Modulecabal-install-solver-3.12.1.0Haskell2010

Distribution.Solver.Types.PkgConfigDb

Read the list of packages available to pkg-config.

1 type
5 values

Packagecabal-install-solver-3.12.1.0
Exports6
LanguageHaskell2010
LicenceBSD-3-Clause
SourcePkgConfigDb.hs

datadata PkgConfigDb

The list of packages installed in the system visible to pkg-config. This is an opaque datatype, to be constructed with readPkgConfigDb and queried with pkgConfigPkgPresent.

Constructors

PkgConfigDb (Map PkgconfigName (Maybe PkgconfigVersion))
If an entry is Nothing, this means that the package seems to be present, but we don't know the exact version (because parsing of the version number failed).
NoPkgConfigDb
For when we could not run pkg-config successfully.

Instances5Show, Generic, Binary, Structured, Rep

Show PkgConfigDbDefined in cabal-install-solver-3.12.1.0 · Distribution.Solver.Types.PkgConfigDb
Generic PkgConfigDbDefined in cabal-install-solver-3.12.1.0 · Distribution.Solver.Types.PkgConfigDb
Binary PkgConfigDbDefined in cabal-install-solver-3.12.1.0 · Distribution.Solver.Types.PkgConfigDb
Structured PkgConfigDbDefined in cabal-install-solver-3.12.1.0 · Distribution.Solver.Types.PkgConfigDb
type Rep PkgConfigDb = D1 ('MetaData "PkgConfigDb" "Distribution.Solver.Types.PkgConfigDb" "cabal-install-solver-3.12.1.0-582X8xReBAn365xYF5myIO" 'False) (C1 ('MetaCons "PkgConfigDb" 'PrefixI 'False) (S1 ('MetaSel 'Nothing 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Map PkgconfigName (Maybe PkgconfigVersion)))) :+: C1 ('MetaCons "NoPkgConfigDb" 'PrefixI 'False) U1)Defined in cabal-install-solver-3.12.1.0 · Distribution.Solver.Types.PkgConfigDb

valuereadPkgConfigDb :: Verbosity -> ProgramDb -> IO PkgConfigDb

Query pkg-config for the list of installed packages, together with their versions. Return a PkgConfigDb encapsulating this information.

valuepkgConfigDbFromList :: [(String, String)] -> PkgConfigDb

Create a PkgConfigDb from a list of (packageName, version) pairs.

valuepkgConfigPkgIsPresent

Check whether a given package range is satisfiable in the given pkg-config database.

valuepkgConfigDbPkgVersion

Query the version of a package in the pkg-config database. Nothing indicates the package is not in the database, while Just Nothing indicates that the package is in the database, but its version is not known.

valuegetPkgConfigDbDirs :: Verbosity -> ProgramDb -> IO [FilePath]

Query pkg-config for the locations of pkg-config's package files. Use this to monitor for changes in the pkg-config DB.