src/CMakeLists.txt: warn if swig is less than 3.0.5

The SWIG js module cannot build on SWIG 2.x, it also now requires macros
defined in SWIG 3.0.4 and above but there are python issues in everything
3.0.2-3.0.4 so we force a requirement on 3.0.5 and above

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9cceb96..b9f986a 100644 (file)
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -106,7 +106,11 @@ if (BUILDSWIG)
       add_subdirectory (python)
     endif ()
     if (BUILDSWIGNODE)
-      add_subdirectory (javascript)
+      if (SWIG_VERSION VERSION_GREATER 3.0.4)
+        add_subdirectory (javascript)
+      else ()
+        message ("WARN - SWIG is ${SWIG_VERSION}. Please upgrade to 3.0.5+ to build nodejs addon")
+      endif ()
     endif ()
   endif ()
 endif ()