Common base library for LXQt components.

apt install -y libqt5xdg-dev libpolkit-qt5-1-dev 

mkdir /data/buildroot/package/liblxqt
cat > /data/buildroot/package/liblxqt/Config.in<< 'EOF'
config BR2_PACKAGE_LIBLXQT
        bool "liblxqt"
        depends on BR2_PACKAGE_QT5
        depends on BR2_PACKAGE_LIBXSS
        depends on BR2_PACKAGE_QT5X11EXTRAS
        depends on BR2_PACKAGE_KWINDOWSYSTEM
        depends on BR2_PACKAGE_LIBQTXDG
        depends on BR2_PACKAGE_POLKIT_QT5
        depends on BR2_PACKAGE_QT5TOOLS
        help
          Common base library for LXQt components.
EOF


cat > /data/buildroot/package/liblxqt/liblxqt.mk<< 'EOF'
#############################################################
#
# liblxqt
#https://github.com/lxqt/liblxqt/archive/refs/tags/1.1.0.tar.gz
#############################################################
LIBLXQT_VERSION = 1.1.0
LIBLXQT_SOURCE  = $(LIBLXQT_VERSION).tar.gz
LIBLXQT_SITE    = https://github.com/lxqt/liblxqt/archive/refs/tags

LIBLXQT_DEPENDENCIES = qt5base libxss qt5x11extras kwindowsystem libqtxdg polkit-qt5 qt5tools
LIBLXQT_INSTALL_TARGET = YES
LIBLXQT_SUPPORTS_IN_SOURCE_BUILD = NO 
    
LIBLXQT_CONF_OPTS = -DCMAKE_TOOLCHAIN_FILE=$(HOST_DIR)/share/buildroot/toolchainfile.cmake \
    -Dlxqt-build-tools_DIR=$(TARGET-DIR)/usr/share/cmake/lxqt-build-tools \
    -DQt5Xdg_DIR=$(TARGET_DIR)/usr/share/cmake/qt5xdg \
    -DQt5XdgIconLoader_DIR=$(TARGET_DIR)/usr/share/cmake/qt5xdgiconloader \
    -DKF5WindowSystem_DIR=$(TARGET_DIR)/usr/lib/cmake/KF5WindowSystem \
    -DPolkitQt5-1_DIR=$(TARGET_DIR)/usr/lib/cmake/PolkitQt5-1 \
    -DCMAKE_INSTALL_PREFIX=/usr
    
define LIBLXQT_CONFIGURE_CMDS
  for unit in libpolkit-qt5-{agent,core,gui}-1.so.1.114.0; do if [[ ! -L "/usr/lib/$${unit}" ]]; then ln -s ${TARGET_DIR}/usr/lib/$${unit} /usr/lib/; fi; done 
  if [[ ! -L "$(HOST_DIR)/usr/lib/libpcre.so.3" ]]; then ln -s $(HOST_DIR)/usr/lib/libpcre.so $(HOST_DIR)/usr/lib/libpcre.so.3; fi
  if [[ ! -d $(@D)/buildroot-build ]]; then mkdir $(@D)/buildroot-build; fi
  cd $(@D)/buildroot-build && \
  LDFLAGS="$(LDFLAGS) -pthread -Wl,--as-needed -Wl,--allow-shlib-undefined" cmake "$(@D)/" $(LIBLXQT_CONF_OPTS)
endef

$(eval $(cmake-package))
EOF
 
sed -i '/menu "Custom packages"/a source "package/liblxqt/Config.in"' /data/buildroot/package/Config.in