fptools build system
====================
This is the top-level directory of the fptools build system. Several
packages are part of this build system; if you got this as part of a
source distribution (eg. for GHC), then you will have one or more of
the following directories:
ghc The Glasgow Haskell Compiler
hslibs A Collection of Haskell libraries
haggis The Haggis GUI toolkit
happy The Happy Haskell parser generator
hdirect Haskell interop tool
green-card A foreign function interface pre-processor for Haskell.
nofib The NoFib Haskell benchmarking suite
Additional documentation for each project can be found in its
respective directory.
In addition, the following directories contain project-independent bits:
mk GNU make setup used by all of fptools
glafp-utils Shared utility programs
docs Documentation on the installing and using
the fptools build system.
distrib Tools and additional bits for building distributions
Quick start: the following is *supposed* to work
$ ./configure
$ make
$ make install
where 'make' is whatever GNU make is called on your system (GNU make
is *required*). The configuration script is a standard GNU autoconf
script which accepts all the normal arguments, eg. --prefix=<blah> to
install the package somewhere other than /usr/local. Try ./configure
--help to get a full list of the options.
There is usually an ANNOUNCE* file with any distribution. Please
consult that, or the <piece>/README file, to find out how to proceed.
Full documentation for the fptools build system can be found on the
GHC web pages:
http://www.haskell.org/ghc/
--
The GHC Team, glasgow-haskell-users@haskell.org
Forked from
Glasgow Haskell Compiler / GHC
59067 commits behind the upstream repository.
Simon Peyton Jones
authored
-------------------------------------------------
Fix an interesting case-alternatives filtering bug
-------------------------------------------------
This bug, shown up by Krasimir's ObjectIO suite, caused the
simplifier to encounter a case expression like
case x of { x:xs -> True; [] -> False }
in a context where x could not possibly be either a (:) or []!
Case expressions in the enclosing scope dealt with it...
So the alternative-filtering removed all the alternatives, leaving
a case expression with no branches, which GHC didn't like one little
bit.
The actual bug was elsewhere; it was because we should sometimes
filter out the DEFAULT alternative, and we weren't doing that.
To fix it, I pulled the alternative-filtering code out of Simplify
and put it in SimplUtils.prepareAlts. It's nice now.| Name | Last commit | Last update |
|---|---|---|
| distrib | ||
| docs | ||
| ghc | ||
| glafp-utils | ||
| mk | ||
| .darcs-boring | ||
| Makefile | ||
| Makefile.config | ||
| README | ||
| acconfig.h | ||
| aclocal.m4 | ||
| config.guess | ||
| config.sub | ||
| configure.in | ||
| install-sh |