diff --git a/NEWS b/NEWS
index 3273b420..5f86b98b 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,14 @@
 xbps-0.45 (???):
 
+ * configure: added `--enable-fulldebug` option to enable extra/expensive
+   debug output.
+
+ * libxbps: fixed a dangling pointer when unpacking configuration files that
+   are renamed (because they existed), if the unpack callback function is set.
+
+ * proplib: extra checks when internalizing plists to avoid NULL pointer
+   dereferences with broken files.
+
  * Move manual pages of all utilities to the section 1 (user commands).
    The xbps utilities can be used by any user so that there's no point
    in having them in the section 8 (administraction and privileged commands).
diff --git a/bin/xbps-install/transaction.c b/bin/xbps-install/transaction.c
index ee701636..536538fa 100644
--- a/bin/xbps-install/transaction.c
+++ b/bin/xbps-install/transaction.c
@@ -339,9 +339,11 @@ exec_transaction(struct xbps_handle *xhp, int maxcols, bool yes, bool drun)
 		}
 		goto out;
 	}
+#ifdef FULL_DEBUG
 	xbps_dbg_printf(xhp, "Dictionary before transaction happens:\n");
 	xbps_dbg_printf_append(xhp, "%s",
 	    xbps_dictionary_externalize(xhp->transd));
+#endif
 
 	trans->xhp = xhp;
 	trans->d = xhp->transd;
diff --git a/configure b/configure
index cd57ee5e..e664b57f 100755
--- a/configure
+++ b/configure
@@ -41,6 +41,7 @@ for instance \`--prefix=\$HOME'.
 --verbose 		Disable silent build to see compilation details
 --enable-api-docs 	Install XBPS API Library documentation (default disabled)
 --enable-debug		Build with debugging code and symbols (default disabled)
+--enable-fulldebug	Enables extra debugging code (default disabled)
 --enable-static 	Build XBPS static utils (default disabled)
 --enable-tests		Build and install Kyua tests (default disabled)
 			Needs atf >= 0.15 (http://code.google.com/p/kyua)
@@ -53,6 +54,7 @@ for x; do
 	var=${x#*=}
 	case "$opt" in
 	--enable-debug) DEBUG=yes;;
+	--enable-fulldebug) FULL_DEBUG=yes;;
 	--prefix) PREFIX=$var;;
 	--exec-prefix) EPREFIX=$var;;
 	--bindir) BINDIR=$var;;
@@ -204,6 +206,10 @@ if [ -n "$DEBUG" -a "$DEBUG" != no -a "$DEBUG" != false ]; then
 else
 	echo "CPPFLAGS+= -DNDEBUG" >>$CONFIG_MK
 fi
+if [ -n "$FULL_DEBUG" ]; then
+	echo "Enabling extra debugging code."
+	echo "CPPFLAGS+= -DFULL_DEBUG" >>$CONFIG_MK
+fi
 
 case "$OS" in
 linux)