[PATCH 03/22 v2] update-alternatives.bbclass: Add missing runtime dependency

[Mark Hatle <mark.hatle@windriver.com>]

When using update-alternatives, there should be a runtime dependency on
${VIRTUAL-RUNTIME_update-alternatives}.  Without this, it's possible to
get into a situation where the package is not installable.

(If VIRTUAL-RUNTIME_update-alternatives is not defined, no requirement
is added.)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
---
 meta/classes/update-alternatives.bbclass |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/meta/classes/update-alternatives.bbclass b/meta/classes/update-alternatives.bbclass
index 4e1ff27..96fd1e8 100644
--- a/meta/classes/update-alternatives.bbclass
+++ b/meta/classes/update-alternatives.bbclass
@@ -304,6 +304,14 @@ python populate_packages_prepend () {
             alt_remove_links += '\tupdate-alternatives --remove  %s %s\n' % (alt_name, alt_target)
 
         if alt_setup_links:
+            # RDEPENDS setup
+            provider = d.getVar('VIRTUAL-RUNTIME_update-alternatives', True)
+            if provider:
+                bb.note('adding runtime requirement for update-alternatives for %s' % pkg)
+                rdepends = d.getVar('RDEPENDS_%s' % pkg, True) or ""
+                rdepends += ' ' + d.getVar('MLPREFIX') + provider
+                d.setVar("RDEPENDS_%s" % pkg, rdepends)
+
             bb.note('adding update-alternatives calls to postinst/postrm for %s' % pkg)
             bb.note('%s' % alt_setup_links)
             postinst = (d.getVar('pkg_postinst_%s' % pkg, True) or d.getVar('pkg_postinst', True)) or '#!/bin/sh\n'
-- 
1.7.3.4