Welcome to GHC!
This is the top of the GHC documentation tree, where you will find
links to all the supplied documentation about GHC and its libraries.
The User's Guide
The User's Guide has all you need to know about using GHC:
command line options, language extensions, GHCi, etc.
GHC comes with a large number of libraries, arranged
hierarchically. The libraries are divided into packages -
to use a package of libraries from GHC or GHCi just add the flag
-package <name> to the command line, where
<name> is the name of the package (see the
section on packages in the User's Guide for more information). The
base and haskell98 packages are always available,
so you don't need to use the -package flag to get these.
the Prelude, and a large collection of useful libraries.
Haskell 98 Standard Libraries.
networking support libraries.
manipulating Haskell source code.
(Old) Haskell Libraries
Previous versions of GHC (before version 5.04) came with a suite
of libraries known as hslibs, aka the Hugs-GHC libraries.
As we are in the process of moving towards using hierarchical
libraries for everything, many of these libraries have moved over to
the new packages in the hierarchical libraries above. We still
provide the old hslibs libraries for backwards compatibility
and also for those libraries which have yet to move into the
hierarchy. For libraries which have moved, the documentation
contains a pointer to the location in the new libraries.
Libraries which haven't moved yet, so are still only available from
here, include: the POSIX library, the Win32 library, HaXml, Readline,
and a few others.