kea: don't use PACKAGECONFIG inappropriately

The Kea recipe has PACKAGECONFIG options for boost, openssl, and
log4cplus. However, these are not optional but mandatory dependencies.

Remove the PACKAGECONFIGs and replace with explicit DEPENDS and
EXTRA_OECONF. Also the RDEPENDS in the PACKAGECONFIGs are redundant as
the library dependencies are generated correctly.

(From OE-Core rev: d58dc77ab71ea85f8f12ea4ca2e28e0afee60440)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/kea/kea_1.7.7.bb

@@ -5,6 +5,8 @@ SECTION = "connectivity"
 LICENSE = "MPL-2.0 & Apache-2.0"
 LIC_FILES_CHKSUM = "file://COPYING;md5=68d95543d2096459290a4e6b9ceccffa"
 
+DEPENDS = "boost log4cplus openssl"
+
 SRC_URI = "\
     http://ftp.isc.org/isc/kea/${PV}/${BP}.tar.gz \
     file://0001-remove-AC_TRY_RUN.patch \
@@ -30,6 +32,10 @@ DEBUG_OPTIMIZATION_append_mipsel = " -O"
 BUILD_OPTIMIZATION_remove_mipsel = " -Og"
 BUILD_OPTIMIZATION_append_mipsel = " -O"
 
+EXTRA_OECONF = "--with-boost-libs=-lboost_system \
+                --with-log4cplus=${STAGING_DIR_TARGET}${prefix} \
+                --with-openssl=${STAGING_DIR_TARGET}${prefix}"
+
 do_configure_prepend() {
     # replace abs_top_builddir to avoid introducing the build path
     # don't expand the abs_top_builddir on the target as the abs_top_builddir is meanlingless on the target
@@ -49,12 +55,6 @@ do_install_append() {
     rm -rf "${D}${localstatedir}"
 }
 
-PACKAGECONFIG ??= "openssl log4cplus boost"
-
-PACKAGECONFIG[openssl] = "--with-openssl=${STAGING_DIR_TARGET}${prefix},,openssl,openssl"
-PACKAGECONFIG[log4cplus] = "--with-log4cplus=${STAGING_DIR_TARGET}${prefix},,log4cplus,log4cplus"
-PACKAGECONFIG[boost] = "--with-boost-libs=-lboost_system,,boost,boost"
-
 FILES_${PN}-staticdev += "${libdir}/kea/hooks/*.a ${libdir}/hooks/*.a"
 FILES_${PN} += "${libdir}/hooks/*.so"