diff -Naur exiv2-0.26.orig/test/functions.source exiv2-0.26/test/functions.source
--- exiv2-0.26.orig/test/functions.source	2017-04-26 21:16:21.000000000 +0200
+++ exiv2-0.26/test/functions.source	2017-06-20 23:59:49.920106800 +0200
@@ -440,6 +440,8 @@
 	testdir="$here/tmp"
 	datadir="../data"
 
+	mkdir -p $testdir
+
 	if [ -z "$EXIV2_BINDIR" ] ; then
 		bin="$here/../bin/"
 	else
@@ -452,6 +454,7 @@
 	elif [ "${os:0:4}" == "MING" ]; then
 		export PLATFORM=mingw
 		# bin=$(dirname $(which exiv2))
+		bin=$(cygpath $EXIV2_BINDIR)
 	else
 		export PLATFORM=$os
 	fi
$ diff -Naur exiv2-0.26.orig/include/exiv2/config.h.orig  exiv2-0.26/include/exiv2/config.h
--- exiv2-0.26.orig/include/exiv2/config.h.orig        2017-08-31 10:06:58.847065500 +0200
+++ exiv2-0.26/include/exiv2/config.h     2017-06-21 19:54:35.768220600 +0200
@@ -158,9 +158,9 @@
 # ifdef  EXV_HAVE_REGEX
 #  undef EXV_HAVE_REGEX
 # endif
-#ifdef EXV_UNICODE_PATH
-#error EXV_UNICODE_PATH is not supported for MinGW builds
-#endif
+//#ifdef EXV_UNICODE_PATH
+//#error EXV_UNICODE_PATH is not supported for MinGW builds
+//#endif
 #endif

 #ifndef __CYGWIN__
diff -Naur exiv2-0.26/src/actions.cpp.orig exiv2-0.26/src/actions.cpp
--- exiv2-0.26/src/actions.cpp.orig     2017-04-26 21:16:21.000000000 +0200
+++ exiv2-0.26/src/actions.cpp  2017-08-31 10:58:49.555946500 +0200
@@ -2117,11 +2117,11 @@
         Action::Modify::applyCommands(sourceImage.get());

         // Open or create the target file
-#ifdef EXV_UNICODE_PATH
-        std::string target = bStdout ? Exiv2::ws2s(temporaryPath()) : tgt;
-#else
+//#ifdef EXV_UNICODE_PATH
+//        std::string target = bStdout ? Exiv2::ws2s(temporaryPath()) : tgt;
+//#else
         std::string target = bStdout ?             temporaryPath()  : tgt;
-#endif
+//#endif

         Exiv2::Image::AutoPtr targetImage;
         if (Exiv2::fileExists(target)) {