This file is part of MXE. See LICENSE.md for licensing information.

From 2d08af9a15089c354b436282e4d23f462a81ce8f Mon Sep 17 00:00:00 2001
From: MXE <mxe@mxe.cc>
Date: Tue, 7 Oct 2014 21:50:59 -0700
Subject: [PATCH] Fix i686-w64-mingw32

Cherry-picked from
https://git.dcmtk.org/?p=dcmtk.git;a=commitdiff;h=b8a53c5f7fd12e9479f830680ef84f93805fd004

diff --git a/config/configure.in b/config/configure.in
index e343ce1..a305114 100644
--- a/config/configure.in
+++ b/config/configure.in
@@ -199,6 +199,10 @@ AC_CHECK_TYPES(longlong)
 AC_CHECK_TYPES(ulonglong)
 CHECK_VLA
 
+dnl File access stuff
+AC_CHECK_TYPES(fpos64_t)
+AC_CHECK_TYPES(off64_t)
+
 dnl stdbool.h and stdint.h are only defined in ANSI C, not in C++
 AC_CHECK_HEADERS(stdbool.h)
 AC_CHECK_HEADERS(stdint.h)
@@ -232,6 +236,7 @@ AC_CHECK_FUNCS(sleep fork)
 AC_CHECK_FUNCS(_findfirst)
 AC_CHECK_FUNCS(strlcpy strlcat)
 AC_CHECK_FUNCS(vsnprintf)
+AC_CHECK_FUNCS(popen pclose)
 AC_FUNC_FSEEKO
 
 
diff --git a/config/include/dcmtk/config/cfunix.h.in b/config/include/dcmtk/config/cfunix.h.in
index 3a6cd69..ed211ca 100644
--- a/config/include/dcmtk/config/cfunix.h.in
+++ b/config/include/dcmtk/config/cfunix.h.in
@@ -157,6 +157,9 @@
 /* Define to 1 if you have the `fork' function. */
 #undef HAVE_FORK
 
+/* Define to 1 if the system has the type `fpos64_t'. */
+#undef HAVE_FPOS64_T
+
 /* Define to 1 if fseeko (and presumably ftello) exists and is declared. */
 #undef HAVE_FSEEKO
 
@@ -424,14 +427,23 @@ typedef unsigned short ushort;
 /* Define to 1 if you have the `ntohs' function. */
 #undef HAVE_NTOHS
 
+/* Define to 1 if the system has the type `off64_t'. */
+#undef HAVE_OFF64_T
+
 /* Define if your system supports readdir_r with the obsolete Posix 1.c draft
    6 declaration (2 arguments) instead of the Posix 1.c declaration with 3
    arguments. */
 #undef HAVE_OLD_READDIR_R
 
+/* Define to 1 if you have the `pclose' function. */
+#undef HAVE_PCLOSE
+
 /* Define if pthread_t is a pointer type on your system */
 #undef HAVE_POINTER_TYPE_PTHREAD_T
 
+/* Define to 1 if you have the `popen' function. */
+#undef HAVE_POPEN
+
 /* Define if your system has a prototype for accept in sys/types.h
    sys/socket.h */
 #undef HAVE_PROTOTYPE_ACCEPT
diff --git a/ofstd/include/dcmtk/ofstd/offile.h b/ofstd/include/dcmtk/ofstd/offile.h
index 0f5d454..3f5a677 100644
--- a/ofstd/include/dcmtk/ofstd/offile.h
+++ b/ofstd/include/dcmtk/ofstd/offile.h
@@ -75,26 +75,36 @@ END_EXTERN_C
   #endif
 #endif
 
-#if defined(_WIN32) && !defined(__MINGW32__)
-  // On Win32 systems except MinGW (where Posix definitions are available)
-  // we use Win32 specific definitions
-  typedef __int64 offile_off_t;
-  typedef fpos_t offile_fpos_t;
+// Explicit LFS (LFS64) and Windows need 64 bit types
+#if defined(EXPLICIT_LFS_64) || defined(_WIN32)
+
+// Use POSIX 64 bit file position type when available
+#ifdef HAVE_FPOS64_T
+typedef fpos64_t offile_fpos_t;
+#else // Otherwise this should be sufficient
+typedef fpos_t offile_fpos_t;
+#endif
+
+// Use POSIX 64 bit file offset type when available
+#ifdef HAVE_OFF64_T
+typedef off64_t offile_off_t;
+#elif !defined(OF_NO_SINT64) // Otherwise use a 64 bit integer
+typedef Sint64 offile_off_t;
+#else // Cry when 64 LFS is required but no 64 bit integer exists
+#error \
+  Could not find a suitable offset-type for LFS64 support.
+#endif
+
+#else // Implicit LFS or no LFS
+
+#ifdef HAVE_FSEEKO
+typedef off_t offile_off_t;
 #else
-  #ifdef EXPLICIT_LFS_64
-    // Explicit LFS (LFS64)
-    typedef fpos64_t offile_fpos_t;
-    typedef off64_t offile_off_t;
-  #else
-    // Implicit LFS or no LFS
-    #ifdef HAVE_FSEEKO
-      typedef off_t offile_off_t;
-    #else
-      typedef long offile_off_t;
-    #endif
-    typedef fpos_t offile_fpos_t;
-  #endif
+typedef long offile_off_t;
 #endif
+typedef fpos_t offile_fpos_t;
+
+#endif // basic type definitions
 
 // the type we use to store the last error.
 typedef int offile_errno_t;
@@ -196,10 +206,10 @@ public:
   OFBool popen(const char *command, const char *modes)
   {
     if (file_) fclose();
-#ifdef _WIN32
-    file_ = _popen(command, modes);
-#else
+#ifdef HAVE_POPEN
     file_ = :: popen(command, modes);
+#else
+    file_ = _popen(command, modes);
 #endif
     if (file_) popened_ = OFTrue; else storeLastError();
     return (file_ != NULL);
@@ -258,10 +268,10 @@ public:
     {
       if (popened_)
       {
-#ifdef _WIN32
-        result = _pclose(file_);
-#else
+#ifdef HAVE_PCLOSE
         result = :: pclose(file_);
+#else
+        result = _pclose(file_);
 #endif
       }
       else
-- 
1.8.3.2