nixpkgs/pkgs/development/compilers/ghdl/default.nix

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{ stdenv, fetchFromGitHub, gnat, zlib, llvm_35, ncurses, clang, flavour ? "mcode" }:
# mcode only works on x86, while the llvm flavour works on both x86 and x86_64.
assert flavour == "llvm" || flavour == "mcode";
let
inherit (stdenv.lib) optional;
inherit (stdenv.lib) optionals;
version = "0.33";
in
stdenv.mkDerivation rec {
name = "ghdl-${flavour}-${version}";
src = fetchFromGitHub {
owner = "tgingold";
repo = "ghdl";
rev = "v${version}";
sha256 = "0g72rk2yzr0lrpncq2c1qcv71w3mi2hjq84r1yzgjr6d0qm87r2a";
};
buildInputs = [ gnat zlib ] ++ optionals (flavour == "llvm") [ clang ncurses ];
configureFlags = optional (flavour == "llvm") "--with-llvm=${llvm_35}";
patchPhase = ''
# Disable warnings-as-errors, because there are warnings (unused things)
sed -i s/-gnatwae/-gnatwa/ Makefile.in ghdl.gpr.in
'';
hardeningDisable = [ "all" ];
enableParallelBuilding = true;
meta = {
homepage = http://sourceforge.net/p/ghdl-updates/wiki/Home/;
description = "Free VHDL simulator";
maintainers = with stdenv.lib.maintainers; [viric];
platforms = with stdenv.lib.platforms; (if flavour == "llvm" then [ "i686-linux" "x86_64-linux" ]
else [ "i686-linux" ]);
license = stdenv.lib.licenses.gpl2Plus;
};
}