nixpkgs/pkgs/development/libraries/gmp/4.3.2.nix
Bjørn Forsman c9baba9212 Fix many package descriptions
(My OCD kicked in today...)

Remove repeated package names, capitalize first word, remove trailing
periods and move overlong descriptions to longDescription.

I also simplified some descriptions as well, when they were particularly
long or technical, often based on Arch Linux' package descriptions.

I've tried to stay away from generated expressions (and I think I
succeeded).

Some specifics worth mentioning:
 * cron, has "Vixie Cron" in its description. The "Vixie" part is not
   mentioned anywhere else. I kept it in a parenthesis at the end of the
   description.

 * ctags description started with "Exuberant Ctags ...", and the
   "exuberant" part is not mentioned elsewhere. Kept it in a parenthesis
   at the end of description.

 * nix has the description "The Nix Deployment System". Since that
   doesn't really say much what it is/does (especially after removing
   the package name!), I changed that to "Powerful package manager that
   makes package management reliable and reproducible" (borrowed from
   nixos.org).

 * Tons of "GNU Foo, Foo is a [the important bits]" descriptions
   is changed to just [the important bits]. If the package name doesn't
   contain GNU I don't think it's needed to say it in the description
   either.
2014-08-24 22:31:37 +02:00

62 lines
2.3 KiB
Nix

{ stdenv, fetchurl, m4, cxx ? true }:
stdenv.mkDerivation rec {
name = "gmp-4.3.2";
src = fetchurl {
url = "mirror://gnu/gmp/${name}.tar.bz2";
sha256 = "0x8prpqi9amfcmi7r4zrza609ai9529pjaq0h4aw51i867064qck";
};
nativeBuildInputs = [ m4 ];
# Prevent the build system from using sub-architecture-specific
# instructions (e.g., SSE2 on i686).
#
# This is not a problem for Apple machines, which are all alike. In
# addition, `configfsf.guess' would return `i386-apple-darwin10.2.0' on
# `x86_64-darwin', leading to a 32-bit ABI build, which is undesirable.
preConfigure =
if !stdenv.isDarwin
then "ln -sf configfsf.guess config.guess"
else ''echo "Darwin host is `./config.guess`."'';
configureFlags = if cxx then "--enable-cxx" else "--disable-cxx";
# The test t-lucnum_ui fails (on Linux/x86_64) when built with GCC 4.8.
# Newer versions of GMP don't have that issue anymore.
doCheck = false;
meta = {
description = "GNU multiple precision arithmetic library";
longDescription =
'' GMP is a free library for arbitrary precision arithmetic, operating
on signed integers, rational numbers, and floating point numbers.
There is no practical limit to the precision except the ones implied
by the available memory in the machine GMP runs on. GMP has a rich
set of functions, and the functions have a regular interface.
The main target applications for GMP are cryptography applications
and research, Internet security applications, algebra systems,
computational algebra research, etc.
GMP is carefully designed to be as fast as possible, both for small
operands and for huge operands. The speed is achieved by using
fullwords as the basic arithmetic type, by using fast algorithms,
with highly optimised assembly code for the most common inner loops
for a lot of CPUs, and by a general emphasis on speed.
GMP is faster than any other bignum library. The advantage for GMP
increases with the operand sizes for many operations, since GMP uses
asymptotically faster algorithms.
'';
homepage = http://gmplib.org/;
license = stdenv.lib.licenses.lgpl3Plus;
maintainers = [ stdenv.lib.maintainers.ludo ];
platforms = stdenv.lib.platforms.all;
};
}