Manual conversion of Baserock's build-essential stratum

This huge commit is a manual conversion, notes on what was
needed:

  o project.conf defines the arch specific stuff which was
    previously hardcoded into YBD, so the stage1 target and target
    etc are all defined by the build-essential project.conf

  o Direct and easy changes for git source representation

  o Added stage1.bst & stage2.bst "stacks", everything built in
    stage2 build-depends on stage1.bst, and the final build-essential
    products build-depend on stage2.bst (note build-depend means
    to depend _only_ for building, not propagated forward).

  o Instead of using host tools we build on the GNOME flatpak
    sdk/platform bundles

  o Some build-essential morph files use $(dirname $(pwd)) for a sysroot,
    which is weird, it means the morph files rely on building at one directory
    below the slash sysroot - in buildstream we build in /buildstream/build
    which is two - had to replace these with $(dirname $(dirname $(pwd))) instead

  o Remove the devices sections from the fhs-dirs elements, not allowed
    to create static device nodes in buildstream.

1 files changed, 76 insertions, 0 deletions

diff --git a/build-essential/glibc.bst b/build-essential/glibc.bst
new file mode 100644
index 00000000..d634b5f7
--- /dev/null
+++ b/build-essential/glibc.bst
@@ -0,0 +1,76 @@
+kind: manual
+
+sources:
+- kind: git
+  url: upstream:glibc
+  track: release/2.22/master
+  ref: b995d95a5943785be3ab862b2d3276f3b4a22481
+
+depends:
+- filename: build-essential/stage2.bst
+  type: build
+- build-essential/linux-api-headers.bst
+
+environment:
+  PATH: /tools/bin:/usr/bin:/bin:/usr/sbin:/sbin
+
+config:
+
+  configure-commands:
+  - mkdir o
+
+  - |
+    case "%{bst-arch}" in
+        armv7*)
+            ARCH_FLAGS="--without-fp" ;;
+    esac
+
+    # We override the PATH here to remove /tools/bin from it.
+    # Thanks to this glibc finds bash in /bin/bash through the /bin
+    # symlink. This is important because glibc changes the path to bash
+    # of the shebang in some scripts and these scripts will be broken if
+    # they point to bash in /tools/bin/bash.
+    export PATH="/usr/bin:/sbin:/bin";
+    export CFLAGS="-O2 $CFLAGS";
+    cd o && ../configure \
+      $ARCH_FLAGS \
+      --prefix="%{prefix}" \
+      --disable-profile \
+      --enable-kernel=3.0.0 \
+      --without-cvs \
+      --without-selinux \
+      --enable-obsolete-rpc
+
+  build-commands:
+  - cd o && make localtime=UTC
+
+  install-commands:
+  - cd o && make install_root="%{install-root}" localtime=UTC install
+  - cd o && make install_root="%{install-root}" localtime=UTC localedata/install-locales
+  - mkdir -p "%{install-root}/etc"
+  - mkdir -p "%{install-root}/etc/ld.so.conf.d"
+  - |
+    cat <<EOF > nsswitch.conf
+    passwd: compat
+    group: compat
+    shadow: compat
+
+    hosts: files myhostname mdns4_minimal [NOTFOUND=return] dns mdns4
+    networks: files
+
+    protocols: db files
+    services: db files
+    ethers: db files
+    rpc: db files
+
+    netgroup: nis
+    EOF
+  - install -m 644 -o root -g root nsswitch.conf "%{install-root}/etc/nsswitch.conf"
+  - |
+    cat <<EOF > ld.so.conf
+    /lib
+    /usr/lib
+    /usr/local/lib
+    include /etc/ld.so.conf.d/*.conf
+    EOF
+  - install -m 644 -o root -g root ld.so.conf "%{install-root}/etc/ld.so.conf"