add dynamic C runtime support on windows, test=develop (#19502)

CMakeLists.txt

@@ -27,13 +27,20 @@ message(STATUS "C compiler: ${CMAKE_C_COMPILER}, version: "
 message(STATUS "AR tools: ${CMAKE_AR}")
 
 if(WIN32)
+    option(MSVC_STATIC_CRT "use static C Runtime library by default" ON)
+
     set(CMAKE_SUPPRESS_REGENERATION ON)
     set(CMAKE_STATIC_LIBRARY_PREFIX lib)
     add_definitions("/DGOOGLE_GLOG_DLL_DECL=")
+    
+    if (MSVC_STATIC_CRT)
+        message(STATUS "Use static C runtime time, refer to https://docs.microsoft.com/en-us/cpp/c-runtime-library/crt-library-features?view=vs-2019")
         set(CMAKE_C_FLAGS_DEBUG   "${CMAKE_C_FLAGS_DEBUG} /bigobj /MTd")
         set(CMAKE_C_FLAGS_RELEASE  "${CMAKE_C_FLAGS_RELEASE} /bigobj /MT")
         set(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} /bigobj /MTd")
         set(CMAKE_CXX_FLAGS_RELEASE   "${CMAKE_CXX_FLAGS_RELEASE} /bigobj /MT")
+    endif()
+    
     add_compile_options(/wd4068 /wd4129 /wd4244 /wd4267 /wd4297 /wd4530 /wd4577 /wd4819 /wd4838)
     set(PADDLE_LINK_FLAGS "/IGNORE:4006 /IGNORE:4098 /IGNORE:4217 /IGNORE:4221")
     set(CMAKE_STATIC_LINKER_FLAGS  "${CMAKE_STATIC_LINKER_FLAGS} ${PADDLE_LINK_FLAGS}")

cmake/external/protobuf.cmake

@@ -222,6 +222,7 @@ FUNCTION(build_protobuf TARGET_NAME BUILD_FOR_HOST)
             -DCMAKE_INSTALL_PREFIX=${PROTOBUF_INSTALL_DIR}
             -DCMAKE_INSTALL_LIBDIR=lib
             -DBUILD_SHARED_LIBS=OFF
+            -Dprotobuf_MSVC_STATIC_RUNTIME=${MSVC_STATIC_CRT}
         CMAKE_CACHE_ARGS
             -DCMAKE_INSTALL_PREFIX:PATH=${PROTOBUF_INSTALL_DIR}
             -DCMAKE_BUILD_TYPE:STRING=${THIRD_PARTY_BUILD_TYPE}

cmake/flags.cmake

@@ -204,7 +204,7 @@ foreach(flag ${GPU_COMMON_FLAGS})
     safe_set_nvflag(${flag})
 endforeach()
 
-if(WIN32)
+if(WIN32 AND MSVC_STATIC_CRT)
 # windows build turn off warnings.
 safe_set_static_flag()
     foreach(flag_var

paddle/fluid/inference/api/demo_ci/CMakeLists.txt

@@ -44,6 +44,7 @@ link_directories("${PADDLE_LIB}/paddle/lib")
 
 if (WIN32)
   add_definitions("/DGOOGLE_GLOG_DLL_DECL=")
+  if (MSVC_STATIC_CRT)
     set(CMAKE_C_FLAGS_DEBUG   "${CMAKE_C_FLAGS_DEBUG} /bigobj /MTd")
     set(CMAKE_C_FLAGS_RELEASE  "${CMAKE_C_FLAGS_RELEASE} /bigobj /MT")
     set(CMAKE_CXX_FLAGS_DEBUG  "${CMAKE_CXX_FLAGS_DEBUG} /bigobj /MTd")
@@ -52,6 +53,7 @@ if (WIN32)
       safe_set_static_flag()
       add_definitions(-DSTATIC_LIB)
     endif()
+  endif()
 else()
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 endif()

paddle/fluid/platform/init.cc

@@ -44,6 +44,10 @@ DEFINE_int32(multiple_of_cupti_buffer_size, 1,
 namespace paddle {
 namespace framework {
 
+#ifdef _WIN32
+#define strdup _strdup
+#endif
+
 std::once_flag gflags_init_flag;
 std::once_flag p2p_init_flag;