FIX: fix build error with libxml2 2.13.0 (#103)

libxml2 2.13.0 changed which header file to define functions
and header inclusion. Due to this refactoring, some yaz source
files need additional inclusion of libxml2 header file,
especially for libxml/parser.h .

Closes #102 .

client/client.c

@@ -73,6 +73,10 @@
 #include <readline/history.h>
 #endif
 
+#if YAZ_HAVE_XML2
+#include <libxml/parser.h>
+#endif
+
 
 #include "admin.h"
 #include "tabcomplete.h"

src/record_render.c

@@ -23,6 +23,7 @@
 #include <yaz/base64.h>
 
 #if YAZ_HAVE_XML2
+#include <libxml/parser.h>
 #include <libxml/xpath.h>
 #include <libxml/xpathInternals.h>
 #endif

test/test_ccl.c

@@ -11,6 +11,9 @@
 #include <yaz/log.h>
 #include <yaz/test.h>
 
+#if YAZ_HAVE_XML2
+#include <libxml/parser.h>
+#endif
 
 static int tst_ccl_query(CCL_bibset bibset,
                          const char *query,

test/test_icu.c

@@ -28,6 +28,7 @@
 #endif
 
 #if YAZ_HAVE_XML2
+#include <libxml/parser.h>
 #include <libxml/xmlmemory.h>
 #endif
 

test/test_xml_include.c

@@ -12,6 +12,9 @@
 
 #include <yaz/xml_include.h>
 #include <yaz/test.h>
+#if YAZ_HAVE_XML2
+#include <libxml/parser.h>
+#endif
 
 static void tst_xml_include1(void)
 {

util/cclsh.c

@@ -20,6 +20,9 @@
 #include <readline/history.h>
 #endif
 
+#if YAZ_HAVE_XML2
+#include <libxml/parser.h>
+#endif
 
 static int debug = 0;
 static char *prog;

util/yaz-icu.c

@@ -17,6 +17,8 @@
 
 #if YAZ_HAVE_ICU
 
+#include <libxml/parser.h>
+
 #include <unicode/ucnv.h>
 #include <unicode/ustring.h>
 #include <unicode/ucol.h>

util/yaz-record-conv.c

@@ -13,6 +13,10 @@
 #include <yaz/record_conv.h>
 #include <yaz/backtrace.h>
 
+#if YAZ_HAVE_XML2
+#include <libxml/parser.h>
+#endif
+
 const char *prog = "yaz-record-conv";
 
 static void usage(void)