chunks:
- build-depends: []
  build-mode: bootstrap
  name: stage1-binutils
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:binutils-redhat
- build-depends:
  - stage1-binutils
  build-mode: bootstrap
  name: stage1-gcc
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:gcc-tarball

- build-depends:
  - stage1-binutils
  - stage1-gcc
  build-mode: bootstrap
  name: stage2-linux-api-headers
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:linux
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-linux-api-headers
  build-mode: bootstrap
  name: stage2-eglibc
  prefix: /tools
  ref: baserock/2.15-build-essential
  repo: upstream:eglibc2
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-eglibc
  build-mode: bootstrap
  name: stage2-binutils
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:binutils-redhat
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-eglibc
  build-mode: bootstrap
  name: stage2-gcc-fixed-headers
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:gcc-tarball
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-eglibc
  - stage2-gcc-fixed-headers
  build-mode: bootstrap
  name: stage2-gcc
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:gcc-tarball
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-eglibc
  build-mode: bootstrap
  name: stage2-busybox
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:busybox
- build-depends: []
  build-mode: bootstrap
  name: stage2-fhs-dirs
  prefix: /tools
  ref: master
  repo: baserock:baserock/fhs-dirs
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-eglibc
  build-mode: bootstrap
  name: stage2-gawk
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:gawk
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-eglibc
  build-mode: bootstrap
  name: stage2-make
  prefix: /tools
  ref: baserock/build-essential
  repo: upstream:make
- build-depends:
  - stage1-binutils
  - stage1-gcc
  - stage2-linux-api-headers
  - stage2-eglibc
  build-mode: bootstrap
  name: stage2-reset-specs
  prefix: /tools
  ref: baserock/2.15-build-essential
  repo: upstream:eglibc2

- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  build-mode: staging
  name: fhs-dirs
  prefix: /usr
  ref: master
  repo: baserock:baserock/fhs-dirs
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  build-mode: staging
  name: linux-api-headers
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:linux
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - linux-api-headers
  build-mode: staging
  name: eglibc
  prefix: /usr
  ref: baserock/2.15-build-essential
  repo: upstream:eglibc2
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - eglibc
  build-mode: staging
  name: zlib
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:zlib
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - eglibc
  - zlib
  build-mode: staging
  name: binutils
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:binutils-redhat
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - eglibc
  build-mode: staging
  name: busybox
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:busybox
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - eglibc
  build-mode: staging
  name: gawk
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:gawk
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - eglibc
  - zlib
  build-mode: staging
  name: gcc
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:gcc-tarball
- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - eglibc
  build-mode: staging
  name: make
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:make

- build-depends:
  - stage2-binutils
  - stage2-busybox
  - stage2-eglibc
  - stage2-fhs-dirs
  - stage2-gawk
  - stage2-gcc
  - stage2-linux-api-headers
  - stage2-make
  - stage2-reset-specs
  - eglibc
  - zlib
  build-mode: staging
  name: ccache
  prefix: /usr
  ref: baserock/build-essential
  repo: upstream:ccache
description: |
 Toolchain stratum

 Stage 1: build a minimal cross compiler with the host's tools.

 Starting with a cross compiler ensures that (a) nothing from the host
 can leak into the build-essential artifacts, and (b) cross-compiling
 build-essential is fully tested and supported, since we always use the
 cross code paths.

 Stage 2: cross-build the whole of build-essential, using the host's tools
 but the cross-compiler toolchain.

 Stage 2 GCC outputs code for the same 'bootstrap' machine as stage 1 GCC,
 but because stage 2 GCC is also built to *run* on the bootstrap machine
 it can only execute inside the stage 3 chroot (due to being built against
 a libc with a non-standard prefix).

 Stage 3: build the whole of build-essential again, this time using a
 staging area containing only the output of stage 2. The result of this
 build is fully reproducible.

 We do a switch-a-roo between stage 2 and 3: stages 2 chunks are all built
 to run on a host *-bootstrap-* while stage 3 chunks are native-built for
 a *-baserock-* machine. This works, because the cross build was all for
 show (and cleanliness) and the binaries actually still run on the host.

 After build-essential is built we do another trick. See
 stage2-fhs-dirs.morph for details. Basically, /bin is a symlink to
 /tools/bin during stage 2 but in stage 3 it becomes a real directory
 again.
kind: stratum
name: build-essential