Added -Wc++98-compat-extra-semi

And fixed 2 more extra semi-colons.

Change-Id: I1ee08e5b2f67cd0c886847c05cd4d63cfcafec3e

CMakeLists.txt

@@ -29,7 +29,7 @@ option(FLATBUFFERS_PACKAGE_REDHAT
 option(FLATBUFFERS_PACKAGE_DEBIAN
        "Build an deb using the 'package' target."
        OFF)
-  
+
 if(NOT FLATBUFFERS_BUILD_FLATC AND FLATBUFFERS_BUILD_TESTS)
     message(WARNING
     "Cannot build tests without building the compiler. Tests will be disabled.")
@@ -193,7 +193,7 @@ elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
       "${CMAKE_CXX_FLAGS} -std=c++0x -Wall -pedantic -Werror -Wextra -Wno-unused-parameter")
   set(FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wold-style-cast")
   if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.8)
-    list(APPEND FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wimplicit-fallthrough" "-Wextra-semi" "-Werror=unused-private-field") # enable warning
+    list(APPEND FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wimplicit-fallthrough" "-Wextra-semi" "-Wc++98-compat-extra-semi" "-Werror=unused-private-field") # enable warning
   endif()
   if(FLATBUFFERS_LIBCXX_WITH_CLANG)
     if(NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Linux")

include/flatbuffers/flatbuffers.h

@@ -2468,10 +2468,10 @@ inline int LookupEnum(const char **names, const char *name) {
 // clang-format off
 #if defined(_MSC_VER)
   #define FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(alignment) \
-    __pragma(pack(1)); \
+    __pragma(pack(1)) \
     struct __declspec(align(alignment))
   #define FLATBUFFERS_STRUCT_END(name, size) \
-    __pragma(pack()); \
+    __pragma(pack()) \
     static_assert(sizeof(name) == size, "compiler breaks packing rules")
 #elif defined(__GNUC__) || defined(__clang__)
   #define FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(alignment) \