diff -urEb dcmtk-3.6.0.orig/ofstd/include/dcmtk/ofstd/offile.h dcmtk-3.6.0/ofstd/include/dcmtk/ofstd/offile.h
--- dcmtk-3.6.0.orig/ofstd/include/dcmtk/ofstd/offile.h	2010-12-17 11:50:30.000000000 +0100
+++ dcmtk-3.6.0/ofstd/include/dcmtk/ofstd/offile.h	2013-07-19 15:56:25.688996134 +0200
@@ -196,7 +196,7 @@
   OFBool popen(const char *command, const char *modes)
   {
     if (file_) fclose();
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(__MINGW64_VERSION_MAJOR)
     file_ = _popen(command, modes);
 #else
     file_ = :: popen(command, modes);
@@ -258,7 +258,7 @@
     {
       if (popened_)
       {
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(__MINGW64_VERSION_MAJOR)
         result = _pclose(file_);
 #else
         result = :: pclose(file_);
