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nixpkgs/pkgs/development/libraries/mpfr/default.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

48 lines
1.5 KiB
Nix

{ stdenv, fetchurl, gmp }:
stdenv.mkDerivation rec {
name = "mpfr-3.1.2";
src = fetchurl {
url = "mirror://gnu/mpfr/${name}.tar.bz2";
sha256 = "0sqvpfkzamxdr87anzakf9dhkfh15lfmm5bsqajk02h1mxh3zivr";
};
buildInputs = [ gmp ];
configureFlags =
/* Work around a FreeBSD bug that otherwise leads to segfaults in the test suite:
http://hydra.bordeaux.inria.fr/build/34862
http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00015.html
http://www.freebsd.org/cgi/query-pr.cgi?pr=161344
*/
stdenv.lib.optional (stdenv.isSunOS or stdenv.isFreeBSD) "--disable-thread-safe" ++
stdenv.lib.optional stdenv.is64bit "--with-pic";
doCheck = true;
enableParallelBuilding = true;
meta = {
homepage = http://www.mpfr.org/;
description = "Library for multiple-precision floating-point arithmetic";
longDescription = ''
The GNU MPFR library is a C library for multiple-precision
floating-point computations with correct rounding. MPFR is
based on the GMP multiple-precision library.
The main goal of MPFR is to provide a library for
multiple-precision floating-point computation which is both
efficient and has a well-defined semantics. It copies the good
ideas from the ANSI/IEEE-754 standard for double-precision
floating-point arithmetic (53-bit mantissa).
'';
license = stdenv.lib.licenses.lgpl2Plus;
maintainers = [ stdenv.lib.maintainers.ludo ];
platforms = stdenv.lib.platforms.all;
};
}