Index: otp/erts/emulator/Makefile.in
===================================================================
--- otp.orig/erts/emulator/Makefile.in	2015-04-28 01:57:04.037207600 +0300
+++ otp/erts/emulator/Makefile.in	2015-04-28 01:59:06.811107100 +0300
@@ -227,7 +227,7 @@
 else
 EMU_CC  = @EMU_CC@
 endif
-TYPE_FLAGS += -DSTATIC_ERLANG_DRIVER
+TYPE_FLAGS += -DSTATIC_ERLANG_DRIVER -DBUILDING_DLL
 else
 EMU_CC  = @EMU_CC@
 endif
Index: otp/erts/emulator/beam/global.h
===================================================================
--- otp.orig/erts/emulator/beam/global.h	2015-04-28 01:58:06.378375000 +0300
+++ otp/erts/emulator/beam/global.h	2015-04-28 01:59:06.861107400 +0300
@@ -795,7 +795,7 @@
 extern int erts_compat_rel;
 extern int erts_use_sender_punish;
 void erts_short_init(void);
-void erl_start(int, char**);
+void OTP_Export_Flags erl_start(int, char**);
 void erts_usage(void);
 Eterm erts_preloaded(Process* p);
 /* erl_md5.c */
Index: otp/erts/emulator/sys/win32/erl_win_sys.h
===================================================================
--- otp.orig/erts/emulator/sys/win32/erl_win_sys.h	2015-04-28 01:58:06.503375000 +0300
+++ otp/erts/emulator/sys/win32/erl_win_sys.h	2015-04-28 01:59:06.907774300 +0300
@@ -117,6 +117,13 @@
 #define ERTS_SYS_FD_TYPE HANDLE
 #define NO_FSTAT_ON_SYS_FD_TYPE 1 /* They are events, not files */
 
+#ifdef BUILDING_DLL
+# define OTP_Export_Flags  __declspec(dllexport)
+#else
+# define OTP_Export_Flags  __declspec(dllimport)
+#endif
+
+
 /*
  * For erl_time_sup
  */