From 374ee84b27b34f41b9a9f5f94220f7f59abf7640 Mon Sep 17 00:00:00 2001
From: Wouter Wijngaards <wouter@nlnetlabs.nl>
Date: Tue, 27 Oct 2015 10:22:05 +0000
Subject: [PATCH] - detect libexpat without xml_StopParser function.

git-svn-id: file:///svn/unbound/trunk@3515 be551aaa-1e26-0410-a405-d3ace91eadb9
---
 config.h.in               |  4 ++++
 configure                 | 14 ++++++++++++++
 configure.ac              |  3 +++
 doc/Changelog             |  1 +
 smallapp/unbound-anchor.c |  4 ++++
 5 files changed, 26 insertions(+)

diff --git a/config.h.in b/config.h.in
index cf39a6304..5eb81c79d 100644
--- a/config.h.in
+++ b/config.h.in
@@ -94,6 +94,10 @@
    don't. */
 #undef HAVE_DECL_STRLCPY
 
+/* Define to 1 if you have the declaration of `XML_StopParser', and to 0 if
+   you don't. */
+#undef HAVE_DECL_XML_STOPPARSER
+
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
diff --git a/configure b/configure
index a3c928853..1e729af42 100755
--- a/configure
+++ b/configure
@@ -17645,6 +17645,20 @@ fi
 
 done
 
+ac_fn_c_check_decl "$LINENO" "XML_StopParser" "ac_cv_have_decl_XML_StopParser" "$ac_includes_default
+#include <expat.h>
+
+"
+if test "x$ac_cv_have_decl_XML_StopParser" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_XML_STOPPARSER $ac_have_decl
+_ACEOF
+
 
 # set static linking if requested
 
diff --git a/configure.ac b/configure.ac
index 9bcde305f..17036184e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -883,6 +883,9 @@ if test x_$found_libexpat != x_yes; then
 	AC_ERROR([Could not find libexpat, expat.h])
 fi
 AC_CHECK_HEADERS([expat.h],,, [AC_INCLUDES_DEFAULT])
+AC_CHECK_DECLS([XML_StopParser], [], [], [AC_INCLUDES_DEFAULT
+#include <expat.h>
+])
 
 # set static linking if requested
 AC_SUBST(staticexe)
diff --git a/doc/Changelog b/doc/Changelog
index 4e99ba6ff..5ceb415eb 100644
--- a/doc/Changelog
+++ b/doc/Changelog
@@ -1,5 +1,6 @@
 27 October 2015: Wouter
 	- isblank() compat implementation.
+	- detect libexpat without xml_StopParser function.
 
 23 October 2015: Wouter
 	- Fix #714: Document config to block private-address for IPv4
diff --git a/smallapp/unbound-anchor.c b/smallapp/unbound-anchor.c
index 261c492c1..e1b6d2b79 100644
--- a/smallapp/unbound-anchor.c
+++ b/smallapp/unbound-anchor.c
@@ -1520,7 +1520,11 @@ xml_entitydeclhandler(void *userData,
 	const XML_Char *ATTR_UNUSED(publicId),
 	const XML_Char *ATTR_UNUSED(notationName))
 {
+#ifdef HAVE_DECL_XML_STOPPARSER
 	(void)XML_StopParser((XML_Parser)userData, XML_FALSE);
+#else
+	(void)userData;
+#endif
 }
 
 /**
-- 
2.47.2