For TeX Live we build a static library and not a Dll.
diff -ur teckit-2.5.8/source/Engine.cpp teckit-src/source/Engine.cpp
--- teckit-2.5.8/source/Engine.cpp Tue Dec 05 07:20:20 2017
+++ teckit-src/source/Engine.cpp Tue Jul 24 07:39:17 2018
@@ -51,12 +51,6 @@
# define NOSERVICE
# define NOMCX
# include <windows.h>
-
- BOOL WINAPI
- DllMain(HINSTANCE /*hInst*/, DWORD /*wDataSeg*/, LPVOID /*lpReserved*/)
- {
- return true;
- }
#endif
#include "Engine.h"
diff -ur teckit-2.5.8/source/Public-headers/TECkit_Compiler.h teckit-src/source/Public-headers/TECkit_Compiler.h
--- teckit-2.5.8/source/Public-headers/TECkit_Compiler.h Tue Dec 05 07:20:20 2017
+++ teckit-src/source/Public-headers/TECkit_Compiler.h Tue Jul 24 07:41:00 2018
@@ -30,6 +30,9 @@
#ifdef _WIN32
/* MS compiler has predefined _WIN32, so assume Windows target */
#include <windows.h> // apparently just using windef.h fails on VC++6
+#undef WINAPI
+#define WINAPI
+#define EXPORTED
#else
/* not the MS compiler, so try Metrowerks' platform macros */
#ifndef __APPLE__
diff -ur teckit-2.5.8/source/Public-headers/TECkit_Engine.h teckit-src/source/Public-headers/TECkit_Engine.h
--- teckit-2.5.8/source/Public-headers/TECkit_Engine.h Tue Dec 05 07:20:20 2017
+++ teckit-src/source/Public-headers/TECkit_Engine.h Tue Jul 24 07:42:14 2018
@@ -80,6 +80,9 @@
#ifdef _WIN32
/* MS compiler has predefined _WIN32, so assume Windows target */
#include <windows.h>
+#undef WINAPI
+#define WINAPI
+#define EXPORTED
#else
/* not the MS compiler, so try Metrowerks' platform macros */
#ifndef __APPLE__