bump to gcc12 for c++23 funtimes

connection.cpp

@@ -998,7 +998,7 @@ int connection__iq_handler(xmpp_conn_t *conn, xmpp_stanza_t *stanza, void *userd
                 children[0] = stanza__iq_pubsub(account->context, NULL,
                         children, with_noop("http://jabber.org/protocol/pubsub"));
                 children[0] = stanza__iq(account->context, NULL, children, NULL,
-                        strdup("fetch2"), to.size() ? strdup(to.data()) : NULL,
+                        strdup("fetch2"), to ? strdup(to) : NULL,
                         binding.from ? strdup(binding.from->bare.data()) : NULL, strdup("get"));
                 xmpp_send(conn, children[0]);
                 xmpp_stanza_release(children[0]);

makefile

@@ -3,8 +3,10 @@ ifdef DEBUG
 	DBGLDFLAGS=-lasan -lrt -lasan #-lubsan -llsan
 endif
 
-RM=rm -f
-FIND=find
+RM ?= rm -f
+FIND ?= find
+CC = $(if $(shell which gcc-12.0.1),gcc-12.0.1,cc)
+CXX = $(if $(shell which g++-12.0.1),g++-12.0.1,c++)
 
 INCLUDES=-Ilibstrophe -Ideps -Ideps/fmt/include \
 	 $(shell xml2-config --cflags) \