Assume we want to create recipe for icu.

• Generate source code information

  touch meta-debian/recipes-debian/sources/icu.inc
  
  # Enable debian-source
  echo 'DEBIAN_SOURCE_ENABLED = "1"' >> <build-dir>/conf/local.conf
  # Force debian-source re-generate in case Sources.xz doesn't change
  echo 'DEBIAN_SRC_FORCE_REGEN = "1"' >> <build-dir>/conf/local.conf
  

• Create recipe with name icu_debian.bb

  mkdir meta-debian/recipes-debian/icu
  vim meta-debian/recipes-debian/icu_debian.bb
  

• Add LICENSE and LIC_FILES_CHKSUM in recipe

  LICENSE = "ICU"
  LIC_FILES_CHKSUM = "file://LICENSE;md5=63752c57bd0b365c9af9f427ef79c819"
  

• Handle Debian source code

  inherit debian-package
  require recipes-debian/sources/icu.inc
  

  Unlike other package, icu put buildable source in the sub-folder source. So we need to overwrite S and update LIC_FILES_CHKSUM to a correct path.

  LICENSE = "ICU"
  LIC_FILES_CHKSUM = "file://../LICENSE;md5=63752c57bd0b365c9af9f427ef79c819"
  
  inherit debian-package
  require recipes-debian/sources/icu.inc
  
  S = "${DEBIAN_UNPACK_DIR}/source"
  

• Reuse codes from meta Layer meta already provide icu.inc with setup for bitbake. Reuse it.

  require recipes-support/icu/icu.inc
  

  If recipe wants to use patch from meta, it need to append FILESPATH to point to icu patch directory.

  FILESPATH_append = ":${COREBASE}/meta/recipes-support/icu/icu"
  SRC_URI += "file://fix-install-manx.patch"
  

• Configure and split packages For icu, all of configurations are put in icu.inc and we already include it, so nothing left to do.

require recipes-support/icu/icu.inc

LICENSE = "ICU"
LIC_FILES_CHKSUM = "file://../LICENSE;md5=63752c57bd0b365c9af9f427ef79c819"

inherit debian-package
require recipes-debian/sources/icu.inc

FILESPATH_append = ":${COREBASE}/meta/recipes-support/icu/icu"
SRC_URI += "file://fix-install-manx.patch"

S = "${DEBIAN_UNPACK_DIR}/source"