build_library/catalyst_toolchains: Install baselayout first

Previously it was not needed - the toolchains didn't have even an
indirect dependency on baselayout. With switching to the selinux
profile which enables a couple of additional USE flags (selinux, caps,
audit), baselayout ends up being pulled in too. This in turn required
fixing copying of stuff from sysroot - <SYSROOT>/lib cannot be copied
to <ROOT>, because <ROOT>/lib already exists (installed by baselayout)
and is a symlink.

Author: krnowak

build_library/catalyst_toolchains.sh

@@ -29,9 +29,26 @@ build_target_toolchain() {
     local ROOT="/build/${board}"
     local SYSROOT="/usr/$(get_board_chost "${board}")"
 
-    mkdir -p "${ROOT}/usr"
-    cp -at "${ROOT}" "${SYSROOT}"/lib*
-    cp -at "${ROOT}"/usr "${SYSROOT}"/usr/include "${SYSROOT}"/usr/lib*
+    # install baselayout first, with the selinux profile, this seems
+    # to be pulled into the dependency chain now
+    PORTAGE_CONFIGROOT="$ROOT" run_merge --root="$ROOT" --sysroot="$ROOT" --oneshot --nodeps sys-apps/baselayout
+
+    (
+        shopt -s nullglob
+        local d f
+        local -a files
+        for d in "${SYSROOT}"/lib* "${SYSROOT}"/usr/lib*; do
+            if [[ ! -d ${d} ]]; then
+                continue
+            fi
+            files=( "${d}"/* )
+            if [[ ${#files[@]} -gt 0 ]]; then
+                f=${d##*/}
+                cp -at "${ROOT}/usr/${f}" "${files[@]}"
+            fi
+        done
+    )
+    cp -at "${ROOT}"/usr "${SYSROOT}"/usr/include
 
     local -a args_for_bdl=()
     if [[ -n ${clst_VERBOSE} ]]; then