Fix memcache build for 5.6 on Debian 13 [skip ci]

Author: shivammathur

scripts/patch-extensions.sh

@@ -61,6 +61,7 @@ patch_amqp() {
 
 # Function to patch memcache source.
 patch_memcache() {
+  [[ "$PHP_VERSION" = "5.6" ]] && export CFLAGS="$CFLAGS -Wno-incompatible-pointer-types"
   [[ "$PHP_VERSION" = "8.3" || "$PHP_VERSION" = "8.4" || "$PHP_VERSION" = "8.5" || "$PHP_VERSION" = "8.6" ]] && sed -i "s/#include <string.h>/#include <string.h>\n#include <errno.h>/" src/memcache_pool.h
   [[ "$PHP_VERSION" = "8.5" || "$PHP_VERSION" = "8.6" ]] && sed -i 's#ext/standard/php_smart_string.h#Zend/zend_smart_string.h#' src/memcache_ascii_protocol.c src/memcache_binary_protocol.c src/memcache_pool.c src/memcache_session.c
   [[ "$PHP_VERSION" = "8.5" || "$PHP_VERSION" = "8.6" ]] && sed -i 's#ext/standard/php_smart_string_public.h#Zend/zend_smart_string.h#' src/memcache_pool.h