First draft of working snapcraft.yaml

gcc-wrapper

#!/bin/sh

exec $0.real --sysroot=$SNAP $*

ldc2.conf

// This configuration file uses libconfig.
// See http://www.hyperrealm.com/libconfig/ for syntax details.

// The default group is required
default:
{
    // 'switches' holds array of string that are appends to the command line
    // arguments before they are parsed.
    switches = [
        "-I%%ldcbinarypath%%/../include/d/ldc",
        "-I%%ldcbinarypath%%/../include/d",
        "-L-L%%ldcbinarypath%%/../lib",
        "-defaultlib=phobos2-ldc,druntime-ldc",
        "-debuglib=phobos2-ldc-debug,druntime-ldc-debug"
    ];
};

snapcraft.yaml

name: ldc2
version: "1.0.0"
summary: D compiler with LLVM backend
description: LDC is a compiler for the D programming Language.
             It is based on the latest DMD frontend and uses LLVM as backend.
confinement: strict

apps:
  ldc2:
    command: ldc2
    plugs: [home]
  ldmd2:
    command: ldmd2
    plugs: [home]

parts:
  ldc:
    source: git://github.com/ldc-developers/ldc.git
    source-tag: v1.0.0
    plugin: cmake
    snap:
    - '*'
    - -etc/ldc2.conf
    build-packages:
    - ldc
    - llvm-dev
    - libconfig++-dev
    - libcurl4-gnutls-dev
    - libedit-dev
    - zlib1g-dev
  ldc2-conf:
    plugin: dump
    source: ldc2-conf
    organize:
      ldc2.conf: etc/ldc2.conf
  gcc:
    plugin: nil
    stage-packages: [gcc]
    organize:
      usr/bin/gcc: usr/bin/gcc.real
  gcc-wrapper:
    plugin: dump
    source: ./gcc-wrapper
    organize:
      gcc-wrapper: usr/bin/gcc
  libc6:
    plugin: nil
    stage-packages: [libc6]
  libc6-dev:
    plugin: nil
    stage-packages: [libc6-dev]