Check for res_ndestroy.

.hgignore

@@ -8,6 +8,7 @@ aclocal.m4
 autom4te.cache
 build
 buildsys.mk
+config.h.in
 config.log
 config.status
 configure

ObjXMPP.xcodeproj/project.pbxproj

@@ -416,6 +416,7 @@
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
+				GCC_PREPROCESSOR_DEFINITIONS = HAVE_RES_NDESTROY;
 				GCC_VERSION = 4.2;
 				INFOPLIST_FILE = Info.plist;
 				OTHER_LDFLAGS = (
@@ -439,6 +440,7 @@
 				FRAMEWORK_VERSION = A;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
+				GCC_PREPROCESSOR_DEFINITIONS = HAVE_RES_NDESTROY;
 				GCC_VERSION = 4.2;
 				INFOPLIST_FILE = Info.plist;
 				OTHER_LDFLAGS = (

autogen.sh

@@ -1,3 +1,4 @@
 #!/bin/sh
 aclocal -I m4 || exit 1
 autoconf || exit 1
+autoheader || exit 1

configure.ac

@@ -64,6 +64,18 @@ AC_TRY_LINK([#include <sys/types.h>
 						     [AC_MSG_RESULT([in -lbind])],
 						     [AC_MSG_ERROR(not found)])])])])
 
+AC_MSG_CHECKING([for res_ndestroy])
+AC_TRY_LINK([
+	#include <resolv.h>
+], [
+	res_ndestroy(&_res)
+], [
+	AC_MSG_RESULT(yes)
+	AC_DEFINE(HAVE_RES_NDESTROY, 1, [Whether we have res_ndestroy])
+], [
+	AC_MSG_RESULT(no)
+])
+
 AC_CHECK_LIB(objopenssl, main, [
 	LIBS="$LIBS -lobjopenssl -lcrypto"
 ], [
@@ -92,4 +104,5 @@ AC_SUBST(CPPFLAGS)
 
 AC_SUBST(PACKAGE, ObjXMPP)
 AC_CONFIG_FILES([buildsys.mk extra.mk])
+AC_CONFIG_HEADERS(config.h)
 AC_OUTPUT

src/Makefile

@@ -25,4 +25,5 @@ INCLUDES = ${SRCS:.m=.h}	\
 
 include ../buildsys.mk
 
+CPPFLAGS += -I.. -DHAVE_CONFIG_H
 LD = ${OBJC}

src/XMPPAuthenticator.m

@@ -20,6 +20,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "XMPPAuthenticator.h"
 
 @implementation XMPPAuthenticator

src/XMPPConnection.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #define XMPP_CONNECTION_M
 
 #include <assert.h>

src/XMPPExceptions.m

@@ -20,6 +20,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "XMPPExceptions.h"
 
 @implementation XMPPException

src/XMPPIQ.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "namespaces.h"
 #import "XMPPIQ.h"
 

src/XMPPJID.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include <stringprep.h>
 
 #import "XMPPJID.h"

src/XMPPMessage.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "XMPPMessage.h"
 #import "namespaces.h"
 

src/XMPPPLAINAuth.m

@@ -20,6 +20,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "XMPPPLAINAuth.h"
 #import "XMPPExceptions.h"
 

src/XMPPPresence.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "XMPPPresence.h"
 #import "namespaces.h"
 

src/XMPPRoster.m

@@ -20,6 +20,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include <assert.h>
 
 #import "XMPPRoster.h"

src/XMPPRosterItem.m

@@ -20,6 +20,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "XMPPRosterItem.h"
 
 @implementation XMPPRosterItem

src/XMPPSCRAMAuth.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include <string.h>
 
 #include <assert.h>

src/XMPPSRVLookup.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include <assert.h>
 
 #include <netinet/in.h>
@@ -239,7 +243,9 @@
 		}
 	} @finally {
 		[self freeMemory: answer];
+#ifdef HAVE_RES_NDESTROY
 		res_ndestroy(&resState);
+#endif
 	}
 
 	[pool release];

src/XMPPStanza.m

@@ -21,6 +21,10 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #import "XMPPStanza.h"
 #import "XMPPJID.h"
 #import "namespaces.h"