Hello @stefan_e.tx,
I am completely new to meson, but with your help and an additional configuration parameter for meson (EXTRA_OEMESON) I got it working.
My recipe weston-kiosk-shell-dpms now looks as follow:
DESCRITPTION = "Module for Weston compositor kiosk shell providing DPMS functionality"
HOMEPAGE = "https://github.com/akhilharihar/Weston-kiosk-shell-DPMS"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://LICENSE;md5=4b8ef887b5d26d4b038225869bda92d3"
FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
SRCREV = "5cf171084c02b468c40777c22243925fd900dc66"
PV = "0.2+git${SRCPV}"
SRC_URI = "git://github.com/akhilharihar/Weston-kiosk-shell-DPMS;branch=main;protocol=https"
SRC_URI += "file://weston-kiosk-shell-dpms.patch"
S = "${WORKDIR}/git"
inherit meson pkgconfig
DEPENDS = "weston wayland-native"
EXTRA_OEMESON += "--prefix=${STAGING_DIR_TARGET}/usr"
do_install() {
install -d ${D}/${bindir_native}
install -m 0755 dpms-client ${D}/${bindir_native}
install -d ${D}/${libdir_native}/weston
install -m 0755 kiosk-shell-dpms.so ${D}${libdir_native}/weston
}
FILES:${PN} += "\
${bindir_native}/* \
${libdir_native}/weston/* \
"
The patch for the meson.build:
index f1fb908..cae3ee9 100644
--- a/meson.build
+++ b/meson.build
@@ -10,7 +10,10 @@ libweston_version = 10
dir_prefix = get_option('prefix')
dir_lib = dir_prefix / get_option('libdir')
dir_module_weston = dir_lib / 'weston'
-dir_system_include = '/usr/include'
+dir_system_include = dir_prefix / get_option('includedir')
+if dir_system_include == ''
+ dir_system_include = '/usr/include'
+endif
weston = dependency('libweston-@0@'.format(libweston_version), method: 'pkg-config')
wayland_server = dependency('wayland-server', method: 'pkg-config')
I’ve tested it on my system and it works 
Thank you very much for your help!
I just have one more question:
To activate the weston extension when building the image I added the following to my image recipe
weston_kiosk_shell_dpms_modify_ini() {
echo "$(awk '{print} /[core]/ && !x {print "shell=kiosk-shell.so"; x=1}' ${IMAGE_ROOTFS}${sysconfdir}/xdg/weston/weston.ini)" > ${IMAGE_ROOTFS}${sysconfdir}/xdg/weston/weston.ini
echo "$(awk '/^modules=/ && !x {$0=$0",kiosk-shell-dpms.so"; x=1} 1' ${IMAGE_ROOTFS}${sysconfdir}/xdg/weston/weston.ini)" > ${IMAGE_ROOTFS}${sysconfdir}/xdg/weston/weston.ini
}
ROOTFS_POSTPROCESS_COMMAND += '${@bb.utils.contains("IMAGE_INSTALL", "weston-kiosk-shell-dpms", "weston_kiosk_shell_dpms_modify_ini; ", "", d)}'
Is there a more elegant way to modify the weston.ini? It would be best to do it directly in the recipe of the extension.
Best regards,
Markus