Revert "WIP: Remove libxml2"

This reverts commit a19692849a.

CMakeLists.txt

@@ -1,7 +1,10 @@
 cmake_minimum_required(VERSION 3.7)
 project(
     feader 
+    VERSION 0.1.0 
+    DESCRIPTION "The C library for Feader"
     )
+set(CMAKE_C_FLAGS, "-g -Wall")
 add_executable(
     feader-cli 
     src/feader.c
@@ -10,3 +13,9 @@ add_library(
     feader SHARED
     src/feader.c
     )
+set_target_properties(
+    feader
+    PROPERTIES 
+    VERSION ${PROJECT_VERSION}
+    SOVERSION 0
+    )

src/feader.c

@@ -96,6 +96,7 @@ void print_xml_elements(xml* x) {
 void cleanup_xml(xml* x) { 
     free(x->data);
     free(x->errBuf);
+    xmlFreeDoc(x->xdp);
     free(x);
 }