- call static_initlize from the backend_manager

- use gaurds to coditionally compile the code

CMakeLists.txt

@@ -261,6 +261,7 @@ NORMALIZE_BOOL(NGRAPH_PLAIDML_ENABLE)
 NORMALIZE_BOOL(NGRAPH_JSON_ENABLE)
 NORMALIZE_BOOL(NGRAPH_STATIC_LIB_ENABLE)
 NORMALIZE_BOOL(NGRAPH_INTERPRETER_STATIC_LIB_ENABLE)
+NORMALIZE_BOOL(NGRAPH_CPU_STATIC_LIB_ENABLE)
 
 message(STATUS "NGRAPH_UNIT_TEST_ENABLE:              ${NGRAPH_UNIT_TEST_ENABLE}")
 message(STATUS "NGRAPH_TOOLS_ENABLE:                  ${NGRAPH_TOOLS_ENABLE}")
@@ -286,6 +287,7 @@ message(STATUS "NGRAPH_DISTRIBUTED_ENABLE:            ${NGRAPH_DISTRIBUTED_ENABL
 message(STATUS "NGRAPH_JSON_ENABLE:                   ${NGRAPH_JSON_ENABLE}")
 message(STATUS "NGRAPH_STATIC_LIB_ENABLE:             ${NGRAPH_STATIC_LIB_ENABLE}")
 message(STATUS "NGRAPH_INTERPRETER_STATIC_LIB_ENABLE: ${NGRAPH_INTERPRETER_STATIC_LIB_ENABLE}")
+message(STATUS "NGRAPH_CPU_STATIC_LIB_ENABLE:         ${NGRAPH_CPU_STATIC_LIB_ENABLE}")
 
 #-----------------------------------------------------------------------------------------------
 # Installation logic...

src/ngraph/runtime/backend_manager.cpp

@@ -25,6 +25,7 @@
 #include "ngraph/file_util.hpp"
 #include "ngraph/runtime/backend.hpp"
 #include "ngraph/runtime/backend_manager.hpp"
+#include "ngraph/runtime/cpu/static_initialize.hpp"
 #include "ngraph/runtime/interpreter/static_initialize.hpp"
 #include "ngraph/util.hpp"
 
@@ -69,6 +70,14 @@ vector<string> runtime::BackendManager::get_registered_backends()
 
 shared_ptr<runtime::Backend> runtime::BackendManager::create_backend(const std::string& config)
 {
+#ifdef NGRAPH_INTERPRETER_STATIC_LIB_ENABLE
+    runtime::interpreter::static_initialize();
+#endif
+
+#ifdef NGRAPH_CPU_STATIC_LIB_ENABLE
+    runtime::cpu::static_initialize();
+#endif
+
     shared_ptr<runtime::Backend> backend;
     string type = config;
 

src/ngraph/runtime/cpu/cpu_backend.cpp

@@ -51,7 +51,7 @@ runtime::BackendConstructor* runtime::cpu::get_backend_constructor_pointer()
     return s_backend_constructor.get();
 }
 
-#ifndef CPU_BACKEND_STATIC
+#ifndef NGRAPH_CPU_STATIC_LIB_ENABLE
 extern "C" runtime::BackendConstructor* get_backend_constructor_pointer()
 {
     return runtime::cpu::get_backend_constructor_pointer();
@@ -70,6 +70,7 @@ void runtime::cpu::static_initialize()
 
 namespace
 {
+#ifndef NGRAPH_CPU_STATIC_LIB_ENABLE
     static class CPUStaticInit
     {
     public:
@@ -79,6 +80,7 @@ namespace
         }
         ~CPUStaticInit() {}
     } s_cpu_static_init;
+#endif
 }
 
 runtime::cpu::CPU_Backend::~CPU_Backend()

src/ngraph/runtime/cpu/cpu_backend.hpp

@@ -34,7 +34,7 @@ namespace ngraph
         {
             class CPU_ExternalFunction;
             class CPU_CallFrame;
-            ngraph::runtime::BackendConstructor* get_backend_constructor_pointer();
+            BackendConstructor* get_backend_constructor_pointer();
             class CPU_BACKEND_API CPU_Backend : public runtime::Backend
             {
             public:

src/ngraph/runtime/interpreter/int_backend.cpp

@@ -43,7 +43,7 @@ runtime::BackendConstructor* runtime::interpreter::get_backend_constructor_point
     return s_backend_constructor.get();
 }
 
-#ifndef INTERPRETER_BACKEND_STATIC
+#ifndef NGRAPH_INTERPRETER_STATIC_LIB_ENABLE
 extern "C" runtime::BackendConstructor* get_backend_constructor_pointer()
 {
     return runtime::interpreter::get_backend_constructor_pointer();