bitbake.conf: set CONFFILES by default

There are a lot of binary packages have files in /etc/, but only a few
of them have set CONFFILES, more than 180 packages are not set in a
world build.  So treat all the files in /etc/ as CONFFILES as Debian
does:
- All the files in /etc/ are CONFFILES
- Move the file out of /etc/ if it is not a conffile
- If /etc/foo can't be moved out, and is changed during
  runtime, then create a symlink /etc/foo -> /var/foo

[YOCTO #8436]

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 2fe6b24d6737dfc7deb83096c4220769013d45c3..f0e4b3a9dfae5d1a93f4477185c2ffb5eb64fef2 100644 (file)
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -271,6 +271,7 @@ PACKAGE_BEFORE_PN ?= ""
 PACKAGES = "${PN}-dbg ${PN}-staticdev ${PN}-dev ${PN}-doc ${PN}-locale ${PACKAGE_BEFORE_PN} ${PN}"
 PACKAGES_DYNAMIC = "^${PN}-locale-.*"
 FILES = ""
+CONFFILES = "${sysconfdir}/*"
 
 FILES_${PN} = "${bindir}/* ${sbindir}/* ${libexecdir}/* ${libdir}/lib*${SOLIBS} \
             ${sysconfdir} ${sharedstatedir} ${localstatedir} \