Upgrade buildroot to 2023.05 (from 2021.08.2), kernel is upgraded to 6.3 (from 5.13.19).

package/php/php.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PHP_VERSION = 8.0.12
+PHP_VERSION = 8.2.6
 PHP_SITE = https://www.php.net/distributions
 PHP_SOURCE = php-$(PHP_VERSION).tar.xz
 PHP_INSTALL_STAGING = YES
@@ -35,6 +35,10 @@ ifeq ($(BR2_STATIC_LIBS)$(BR2_TOOLCHAIN_HAS_THREADS),yy)
 PHP_STATIC_LIBS += -lpthread
 endif
 
+ifeq ($(BR2_TOOLCHAIN_HAS_LIBATOMIC),y)
+PHP_EXTRA_LIBS += -latomic
+endif
+
 ifeq ($(call qstrip,$(BR2_TARGET_LOCALTIME)),)
 PHP_LOCALTIME = UTC
 else
@@ -150,11 +154,6 @@ PHP_CONF_OPTS += --with-libxml
 PHP_DEPENDENCIES += libxml2
 endif
 
-ifeq ($(BR2_PACKAGE_PHP_EXT_WDDX),y)
-PHP_CONF_OPTS += --enable-wddx --with-libexpat-dir=$(STAGING_DIR)/usr
-PHP_DEPENDENCIES += expat
-endif
-
 ifeq ($(BR2_PACKAGE_PHP_EXT_ZIP),y)
 PHP_DEPENDENCIES += libzip
 endif
@@ -181,13 +180,8 @@ endif
 endif
 
 ifeq ($(BR2_PACKAGE_PHP_EXT_INTL),y)
-PHP_CONF_OPTS += --enable-intl --with-icu-dir=$(STAGING_DIR)/usr
-PHP_CXXFLAGS += "`$(STAGING_DIR)/usr/bin/icu-config --cxxflags`"
+PHP_CONF_OPTS += --enable-intl
 PHP_DEPENDENCIES += icu
-# The intl module is implemented in C++, but PHP fails to use
-# g++ as the compiler for the final link. As a workaround,
-# tell it to link libstdc++.
-PHP_EXTRA_LIBS += -lstdc++
 endif
 
 ifeq ($(BR2_PACKAGE_PHP_EXT_GMP),y)