[OE-core] [PATCH v2 4/4] dpkg: Provide update-alternative for start-stop-daemon

[Jason Wessel]

When using DISTRO_FEATURE usrmerge, busybox and something that
requires dpkg-start-stop there is a conflict which prints the
following error.

===

ERROR: core-image-minimal-1.0-r1 do_rootfs: Postinstall scriptlets of ['busybox'] have failed. If the intention is to defer them to first boot,
then please place them into pkg_postinst_ontarget_${PN} ().
Deferring to first boot via 'exit 1' is no longer supported.
Details of the failure are in /build/tmp-glibc/work/intel_x86_64-linux/core-image-minimal/1.0-r1/temp/log.do_rootfs.
ERROR: core-image-minimal-1.0-r1 do_rootfs: Function failed: do_rootfs

===

Looking at the log file, it shows the problem:

update-alternatives: Error: not linking /build/tmp-glibc/work/intel_x86_64-linux/core-image-minimal/1.0-r1/rootfs/usr/sbin/start-stop-daemon to /usr/bin/busybox.nosuid since /build/tmp-glibc/work/intel_x86_64-linux/core-image-minimal/1.0-r1/rootfs/usr/sbin/start-stop-daemon exists and is not a link

===

The solution is to add an update-alternative to start-stop-daemon for dpkg.

Signed-off-by: Jason Wessel <jason.wessel at windriver.com>
---
 meta/recipes-devtools/dpkg/dpkg.inc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/meta/recipes-devtools/dpkg/dpkg.inc b/meta/recipes-devtools/dpkg/dpkg.inc
index fee7a75814..1c3c585d79 100644
--- a/meta/recipes-devtools/dpkg/dpkg.inc
+++ b/meta/recipes-devtools/dpkg/dpkg.inc
@@ -9,7 +9,7 @@ RDEPENDS_${PN}_class-native = ""
 
 UPSTREAM_CHECK_URI = "${DEBIAN_MIRROR}/main/d/dpkg/"
 
-inherit autotools gettext perlnative pkgconfig perl-version
+inherit autotools gettext perlnative pkgconfig perl-version update-alternatives
 
 PERL_class-native = "${STAGING_BINDIR_NATIVE}/perl-native/perl"
 
@@ -76,7 +76,10 @@ RDEPENDS_${PN}-perl += "perl-module-carp perl-module-constant \
 # the bitbake version.
 #
 PACKAGES =+ "${PN}-start-stop"
-FILES_${PN}-start-stop = "${sbindir}/start-stop-daemon"
+FILES_${PN}-start-stop = "${sbindir}/start-stop-daemon.${BPN}"
+ALTERNATIVE_${PN}-start-stop = "start-stop-daemon"
+ALTERNATIVE_LINK_NAME[start-stop-daemon] = "${sbindir}/start-stop-daemon"
+ALTERNATIVE_PRIORITY = "100"
 
 RDEPENDS_${PN} += "${PN}-start-stop"
 
-- 
2.21.0