Fix Cmake build environment and harden Warnings

-Remove unused sweetcomb CmakeList.txt Warnings
-Add more Warnings to plugins, scvpp and gNMI Cmake projects
-Remove unused/useless Cmake options in CmakeList files & add comments
-Improve gNMI CMakeList.txt and make it independant of a gRPC cmake build for
later package integration.
-Add FindGRPC.cmake
-Remove the use of CXX17 variant and use a dedicated Cmake module for
gRPC

Change-Id: Iafa3c031d12802e8d8c914cbce6b119c2a5c4800
Signed-off-by: Yohan Pipereau <ypiperea@cisco.com>

1 files changed, 2 insertions, 9 deletions

diff --git a/src/gnmi/gnmidata.h b/src/gnmi/gnmidata.h
index e4c15d2..82c60c8 100644
--- a/src/gnmi/gnmidata.h
+++ b/src/gnmi/gnmidata.h
@@ -18,7 +18,6 @@
 #define GNMIDATA_H
 
 #include <string>
-#include <variant>
 
 /**
  * @todo write docs
@@ -38,14 +37,7 @@ public:
     };
 
 public:
-    /**
-     * Default constructor
-     */
     gNMIData() = default;
-
-    /**
-     * Destructor
-     */
     ~gNMIData() = default;
 
     ValueType dataType() const;
@@ -64,7 +56,8 @@ private:
 
 private:
     ValueType dtype = ValueType::UnknownVal;
-    std::variant<int, std::string> value;
+    int intData;
+    std::string strData;
     std::string xpath;
 };