recipes/classes: Drop prepend/append usage with PACKAGESPLITFUNCS

As far as I can tell, none of these uses of PACKAGESPLITFUNCS need append/prepend
operators, the standard += and =+ can work just fine. Since OE-Core is copied a lot,
use the preferred syntax which is also simpler to parse and change.

(From OE-Core rev: 846ff49465337dddd75a83161f41f48117f6571c)

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

meta/classes-recipe/kernel-module-split.bbclass

@@ -35,7 +35,7 @@ do_install:append() {
 }
 
 KERNEL_SPLIT_MODULES ?= "1"
-PACKAGESPLITFUNCS:prepend = "split_kernel_module_packages "
+PACKAGESPLITFUNCS =+ "split_kernel_module_packages "
 
 KERNEL_MODULES_META_PACKAGE ?= "${@ d.getVar("KERNEL_PACKAGE_NAME") or "kernel" }-modules"
 

meta/classes-recipe/kernel.bbclass

@@ -705,7 +705,7 @@ pkg_postinst:${KERNEL_PACKAGE_NAME}-base () {
 	fi
 }
 
-PACKAGESPLITFUNCS:prepend = "split_kernel_packages "
+PACKAGESPLITFUNCS =+ "split_kernel_packages "
 
 python split_kernel_packages () {
     do_split_packages(d, root='${nonarch_base_libdir}/firmware', file_regex=r'^(.*)\.(bin|fw|cis|csp|dsp)$', output_pattern='${KERNEL_PACKAGE_NAME}-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='')

meta/classes-recipe/systemd.bbclass

@@ -205,7 +205,7 @@ python systemd_populate_packages() {
         systemd_check_services()
 }
 
-PACKAGESPLITFUNCS:prepend = "systemd_populate_packages "
+PACKAGESPLITFUNCS =+ "systemd_populate_packages "
 
 python rm_systemd_unitdir (){
     import shutil

meta/classes-recipe/update-alternatives.bbclass

@@ -265,7 +265,7 @@ def update_alternatives_alt_targets(d, pkg):
 
     return updates
 
-PACKAGESPLITFUNCS:prepend = "populate_packages_updatealternatives "
+PACKAGESPLITFUNCS =+ "populate_packages_updatealternatives "
 
 python populate_packages_updatealternatives () {
     if not update_alternatives_enabled(d):

meta/classes-recipe/update-rc.d.bbclass

@@ -68,7 +68,7 @@ python __anonymous() {
     update_rc_after_parse(d)
 }
 
-PACKAGESPLITFUNCS:prepend = "${@bb.utils.contains('DISTRO_FEATURES', 'sysvinit', 'populate_packages_updatercd ', '', d)}"
+PACKAGESPLITFUNCS =+ "${@bb.utils.contains('DISTRO_FEATURES', 'sysvinit', 'populate_packages_updatercd ', '', d)}"
 PACKAGESPLITFUNCS:remove:class-nativesdk = "populate_packages_updatercd "
 
 populate_packages_updatercd[vardeps] += "updatercd_prerm updatercd_postrm updatercd_postinst"

meta/recipes-connectivity/wpa-supplicant/wpa-supplicant_2.10.bb

@@ -134,4 +134,4 @@ python split_wpa_supplicant_libs () {
         d.setVar('RRECOMMENDS:' + pn + '-plugins', ' '.join(split_packages))
         d.appendVar('RRECOMMENDS:' + pn + '-dbg', ' ' + ' '.join(split_dbg_packages))
 }
-PACKAGESPLITFUNCS:prepend = "split_wpa_supplicant_libs "
+PACKAGESPLITFUNCS += "split_wpa_supplicant_libs "

meta/recipes-devtools/perl/perl_5.36.0.bb

@@ -302,7 +302,7 @@ ALTERNATIVE_LINK_NAME[Thread.3] = "${mandir}/man3/Thread.3"
 ALLOW_EMPTY:${PN}-modules = "1"
 PACKAGES += "${PN}-modules "
 
-PACKAGESPLITFUNCS:prepend = "split_perl_packages "
+PACKAGESPLITFUNCS =+ "split_perl_packages "
 
 python split_perl_packages () {
     libdir = d.expand('${libdir}/perl5/${PV}')

meta/recipes-graphics/mesa/mesa.inc

@@ -291,7 +291,7 @@ python mesa_populate_packages() {
     do_split_packages(d, pipe_drivers_root, r'^pipe_(.*)\.so$', 'mesa-driver-pipe-%s', 'Mesa %s pipe driver', extra_depends='')
 }
 
-PACKAGESPLITFUNCS:prepend = "mesa_populate_packages "
+PACKAGESPLITFUNCS =+ "mesa_populate_packages "
 
 PACKAGES_DYNAMIC += "^mesa-driver-.*"
 PACKAGES_DYNAMIC:class-native = "^mesa-driver-.*-native"

meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-license.inc

@@ -1,7 +1,7 @@
 # This .inc file contains functionality for automatically setting
 # the the license of all plugins according to the GSTREAMER_GPL.
 
-PACKAGESPLITFUNCS:append = " set_gstreamer_license "
+PACKAGESPLITFUNCS += " set_gstreamer_license "
 
 python set_gstreamer_license () {
     import oe.utils

meta/recipes-multimedia/gstreamer/gstreamer1.0-plugins-packaging.inc

@@ -9,8 +9,8 @@
 # Dynamically generate packages for all enabled plugins
 PACKAGES_DYNAMIC = "^${PN}-.* ^libgst.*"
 
-PACKAGESPLITFUNCS:prepend = " split_gstreamer10_packages "
-PACKAGESPLITFUNCS:append = " set_gstreamer10_metapkg_rdepends "
+PACKAGESPLITFUNCS =+ " split_gstreamer10_packages "
+PACKAGESPLITFUNCS += " set_gstreamer10_metapkg_rdepends "
 
 python split_gstreamer10_packages () {
     gst_libdir = d.expand('${libdir}/gstreamer-1.0')

meta/recipes-support/libevent/libevent_2.1.12.bb

@@ -41,7 +41,7 @@ PACKAGES_DYNAMIC = "^${PN}-.*$"
 python split_libevent_libs () {
     do_split_packages(d, '${libdir}', r'^libevent_([a-z]*)-.*\.so\..*', '${PN}-%s', '${SUMMARY} (%s)', prepend=True, allow_links=True)
 }
-PACKAGESPLITFUNCS:prepend = "split_libevent_libs "
+PACKAGESPLITFUNCS =+ "split_libevent_libs "
 
 BBCLASSEXTEND = "native nativesdk"