diff --git a/Include/Python.h b/Include/Python.h
index e3addc704a0..593c8f65413 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -22,12 +22,13 @@
 
 #include "patchlevel.h"
 #include "pyconfig.h"
+#include "pyport.h"
 
 #ifdef HAVE_LIMITS_H
 #include <limits.h>
 #endif
 
-/* pyconfig.h may or may not define DL_IMPORT */
+/* pyconfig.h or pyport.h may or may not define DL_IMPORT */
 #ifndef DL_IMPORT	/* declarations for DLL import/export */
 #define DL_IMPORT(RTYPE) RTYPE
 #endif
@@ -59,8 +60,6 @@
  */
 #include <assert.h>
 
-#include "pyport.h"
-
 /* Debug-mode build with pymalloc implies PYMALLOC_DEBUG.
  *  PYMALLOC_DEBUG is in error if pymalloc is not in use.
  */
diff --git a/Include/pyport.h b/Include/pyport.h
index 790c7afa59c..5c3e0a947f1 100644
--- a/Include/pyport.h
+++ b/Include/pyport.h
@@ -384,9 +384,19 @@ extern int fsync(int fd);
 extern double hypot(double, double);
 #endif
 
+#ifndef __CYGWIN__
 #ifndef DL_IMPORT       /* declarations for DLL import */
 #define DL_IMPORT(RTYPE) RTYPE
 #endif
+#else /* __CYGWIN__ */
+#ifdef USE_DL_IMPORT
+#define DL_IMPORT(RTYPE) __declspec(dllimport) RTYPE
+#define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
+#else /* !USE_DL_IMPORT */
+#define DL_IMPORT(RTYPE) __declspec(dllexport) RTYPE
+#define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
+#endif /* USE_DL_IMPORT */
+#endif /* __CYGWIN__ */
 
 /* If the fd manipulation macros aren't defined,
    here is a set that should do the job */
diff --git a/configure b/configure
index ddd86dbf8be..4e13cedad48 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.314 .
+# From configure.in Revision: 1.315 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.53.
 #
diff --git a/configure.in b/configure.in
index dcae3d8eef4..c90f60c85ab 100644
--- a/configure.in
+++ b/configure.in
@@ -7,16 +7,6 @@ AC_CONFIG_HEADER(pyconfig.h)
 # This is for stuff that absolutely must end up in pyconfig.h.
 # Please use pyport.h instead, if possible.
 AH_BOTTOM([
-#ifdef __CYGWIN__
-#ifdef USE_DL_IMPORT
-#define DL_IMPORT(RTYPE) __declspec(dllimport) RTYPE
-#define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
-#else
-#define DL_IMPORT(RTYPE) __declspec(dllexport) RTYPE
-#define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
-#endif
-#endif
-
 /* Define the macros needed if on a UnixWare 7.x system. */
 #if defined(__USLC__) && defined(__SCO_VERSION__)
 #define STRICT_SYSV_CURSES /* Don't use ncurses extensions */
diff --git a/pyconfig.h.in b/pyconfig.h.in
index 8e96db2c08b..86bd6c8ddbc 100644
--- a/pyconfig.h.in
+++ b/pyconfig.h.in
@@ -825,16 +825,6 @@
 #undef volatile
 
 
-#ifdef __CYGWIN__
-#ifdef USE_DL_IMPORT
-#define DL_IMPORT(RTYPE) __declspec(dllimport) RTYPE
-#define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
-#else
-#define DL_IMPORT(RTYPE) __declspec(dllexport) RTYPE
-#define DL_EXPORT(RTYPE) __declspec(dllexport) RTYPE
-#endif
-#endif
-
 /* Define the macros needed if on a UnixWare 7.x system. */
 #if defined(__USLC__) && defined(__SCO_VERSION__)
 #define STRICT_SYSV_CURSES /* Don't use ncurses extensions */