Fixes to compile in Windows C++ compiler

git-svn-id: http://svn.openzap.org/svn/openzap/branches/sangoma_boost@913 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/freetdm/src/include/openzap.h

@@ -175,6 +175,10 @@
 #include "zap_buffer.h"
 #include "zap_threadmutex.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #ifdef __WINDOWS__
 #define zap_sleep(x) Sleep(x)
 #else
@@ -317,10 +321,6 @@
 */
 #define zap_copy_flags(dest, src, flags) (dest)->flags &= ~(flags);	(dest)->flags |= ((src)->flags & (flags))
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
 typedef enum {
 	ZAP_STATE_CHANGE_FAIL,
 	ZAP_STATE_CHANGE_SUCCESS,

libs/freetdm/src/include/zap_types.h

@@ -405,6 +405,17 @@ typedef enum {
 	ZAP_CHANNEL_ANSWERED = (1 << 23),
 	ZAP_CHANNEL_MUTE = (1 << 24)
 } zap_channel_flag_t;
+#if defined(__cplusplus) && defined(WIN32) 
+    // fix C2676 
+__inline__ zap_channel_flag_t operator|=(zap_channel_flag_t a, int32_t b) {
+    a = (zap_channel_flag_t)(a | b);
+    return a;
+}
+__inline__ zap_channel_flag_t operator&=(zap_channel_flag_t a, int32_t b) {
+    a = (zap_channel_flag_t)(a & b);
+    return a;
+}
+#endif
 
 typedef enum {
 	ZSM_NONE,