4c0d7da183
The old forms presumably predates, or were made in ignorance of, `let inherit`. This way is better style as the scoping as more lexical, something which Nix can (or might already!) take advantage of.
80 lines
3.0 KiB
Nix
80 lines
3.0 KiB
Nix
{ stdenv, fetchurl, m4, cxx ? true, withStatic ? false }:
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let inherit (stdenv.lib) optional optionalString; in
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let self = stdenv.mkDerivation rec {
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name = "gmp-6.1.1";
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src = fetchurl { # we need to use bz2, others aren't in bootstrapping stdenv
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urls = [ "mirror://gnu/gmp/${name}.tar.bz2" "ftp://ftp.gmplib.org/pub/${name}/${name}.tar.bz2" ];
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sha256 = "1mpzprdzkgfpdc1v2lf4dxlxps4x8bvmzvd8n1ri6gw9y9jrh458";
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};
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#outputs TODO: split $cxx due to libstdc++ dependency
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# maybe let ghc use a version with *.so shared with rest of nixpkgs and *.a added
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# - see #5855 for related discussion
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outputs = [ "out" "dev" "info" ];
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passthru.static = self.out;
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nativeBuildInputs = [ m4 ];
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configureFlags =
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# Build a "fat binary", with routines for several sub-architectures
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# (x86), except on Solaris where some tests crash with "Memory fault".
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# See <http://hydra.nixos.org/build/2760931>, for instance.
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#
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# no darwin because gmp uses ASM that clang doesn't like
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optional (!stdenv.isSunOS) "--enable-fat"
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++ (if cxx then [ "--enable-cxx" ]
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else [ "--disable-cxx" ])
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++ optional (cxx && stdenv.isDarwin) "CPPFLAGS=-fexceptions"
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++ optional stdenv.isDarwin "ABI=64"
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++ optional stdenv.is64bit "--with-pic"
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;
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# The config.guess in GMP tries to runtime-detect various
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# ARM optimization flags via /proc/cpuinfo (and is also
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# broken on multicore CPUs). Avoid this impurity.
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preConfigure = optionalString stdenv.isArm ''
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configureFlagsArray+=("--build=$(./configfsf.guess)")
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'';
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doCheck = true;
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dontDisableStatic = withStatic;
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enableParallelBuilding = true;
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meta = with stdenv.lib; {
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homepage = "http://gmplib.org/";
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description = "GNU multiple precision arithmetic library";
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license = licenses.gpl3Plus;
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longDescription =
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'' GMP is a free library for arbitrary precision arithmetic, operating
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on signed integers, rational numbers, and floating point numbers.
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There is no practical limit to the precision except the ones implied
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by the available memory in the machine GMP runs on. GMP has a rich
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set of functions, and the functions have a regular interface.
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The main target applications for GMP are cryptography applications
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and research, Internet security applications, algebra systems,
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computational algebra research, etc.
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GMP is carefully designed to be as fast as possible, both for small
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operands and for huge operands. The speed is achieved by using
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fullwords as the basic arithmetic type, by using fast algorithms,
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with highly optimised assembly code for the most common inner loops
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for a lot of CPUs, and by a general emphasis on speed.
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GMP is faster than any other bignum library. The advantage for GMP
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increases with the operand sizes for many operations, since GMP uses
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asymptotically faster algorithms.
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'';
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platforms = platforms.all;
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maintainers = [ maintainers.peti maintainers.vrthra ];
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};
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};
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in self
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