classes/package*: Add support for PACKAGE_WRITE_DEPS

Add a new variable to allow markup of postinstall (and preinst)
script dependnecies on native/cross tools.

If your postinstall can execute at rootfs creation time rather than on
target but depends on a native tool in order to execute, you need to
list that tool in PACKAGE_WRITE_DEPENDS.

(From OE-Core rev: aff8ca95b8303a4a2a5600c0d8ec0a50ad677258)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index 568b85c12a..0068a50258 100644
--- a/meta/classes/package.bbclass
+++ b/meta/classes/package.bbclass
@@ -54,6 +54,14 @@ ALL_MULTILIB_PACKAGE_ARCHS = "${@all_multilib_tune_values(d, 'PACKAGE_ARCHS')}"
 # rpm is used for the per-file dependency identification
 PACKAGE_DEPENDS += "rpm-native"
 
+
+# If your postinstall can execute at rootfs creation time rather than on
+# target but depends on a native/cross tool in order to execute, you need to
+# list that tool in PACKAGE_WRITE_DEPENDS. Target package dependencies belong
+# in the package dependencies as normal, this is just for native/cross support
+# tools at rootfs build time.
+PACKAGE_WRITE_DEPS ??= ""
+
 def legitimize_package_name(s):
     """
     Make sure package names are legitimate strings