Problem: HAVE_LIBSODIUM macro is inconsistent

Solution: use ZMQ_USE_LIBSODIUM to match ZMQ_USE_TWEETNACL

CMakeLists.txt

@@ -43,7 +43,7 @@ elseif (WITH_LIBSODIUM)
         if (${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
             target_link_libraries (libzmq ssp)
         endif ()
-        set (HAVE_LIBSODIUM 1)
+        set (ZMQ_USE_LIBSODIUM 1)
         set (ZMQ_HAVE_CURVE 1)
     else ()
         message (FATAL_ERROR

configure.ac

@@ -439,7 +439,7 @@ if test "x$enable_curve" = "xno"; then
 elif test "x$with_libsodium" = "xyes"; then
     AC_MSG_NOTICE([Using libsodium for CURVE security])
     AC_DEFINE(ZMQ_HAVE_CURVE, [1], [Using curve encryption])
-    AC_DEFINE(HAVE_LIBSODIUM, [1], [Using libsodium for curve encryption])
+    AC_DEFINE(ZMQ_USE_LIBSODIUM, [1], [Using libsodium for curve encryption])
     curve_library="libsodium"
 
     # On Solaris, libsodium depends on libssp

src/ctx.cpp

@@ -51,7 +51,7 @@
 
 #if defined (ZMQ_USE_TWEETNACL)
 #   include "tweetnacl.h"
-#elif defined (HAVE_LIBSODIUM)
+#elif defined (ZMQ_USE_LIBSODIUM)
 #   include "sodium.h"
 #endif
 

src/curve_client.hpp

@@ -36,7 +36,7 @@
 
 #if defined (ZMQ_USE_TWEETNACL)
 #   include "tweetnacl.h"
-#elif defined (HAVE_LIBSODIUM)
+#elif defined (ZMQ_USE_LIBSODIUM)
 #   include "sodium.h"
 #endif
 

src/curve_server.hpp

@@ -36,7 +36,7 @@
 
 #if defined (ZMQ_USE_TWEETNACL)
 #   include "tweetnacl.h"
-#elif defined (HAVE_LIBSODIUM)
+#elif defined (ZMQ_USE_LIBSODIUM)
 #   include "sodium.h"
 #endif
 

src/zmq_utils.cpp

@@ -46,7 +46,7 @@
 
 #if defined (ZMQ_USE_TWEETNACL)
 #   include "tweetnacl.h"
-#elif defined (HAVE_LIBSODIUM)
+#elif defined (ZMQ_USE_LIBSODIUM)
 #   include "sodium.h"
 #endif