diff -Naur virtualenv-16.1.0-orig/src/virtualenv.py virtualenv-16.1.0/src/virtualenv.py
--- virtualenv-16.1.0-orig/src/virtualenv.py	2018-10-31 18:06:44.000000000 +0300
+++ virtualenv-16.1.0/src/virtualenv.py	2019-06-20 10:53:09.878842500 +0300
@@ -57,6 +57,7 @@
 is_jython = sys.platform.startswith("java")
 is_pypy = hasattr(sys, "pypy_version_info")
 is_win = sys.platform == "win32"
+is_mingw = is_win and ('GCC' in sys.version)
 is_cygwin = sys.platform == "cygwin"
 is_darwin = sys.platform == "darwin"
 abiflags = getattr(sys, "abiflags", "")
@@ -77,7 +78,7 @@
 
 # Return a mapping of version -> Python executable
 # Only provided for Windows, where the information in the registry is used
-if not is_win:
+if not is_win or is_mingw:
 
     def get_installed_pythons():
         return {}
@@ -1052,9 +1053,14 @@
                 print("Exiting.")
                 sys.exit(3)
             home_dir = str(buf.value)
-        lib_dir = join(home_dir, "Lib")
-        inc_dir = join(home_dir, "Include")
-        bin_dir = join(home_dir, "Scripts")
+        if is_mingw:
+            lib_dir = join(home_dir, "lib", py_version)
+            inc_dir = join(home_dir, "include", py_version + abiflags)
+            bin_dir = join(home_dir, "bin")
+        else:
+            lib_dir = join(home_dir, "Lib")
+            inc_dir = join(home_dir, "Include")
+            bin_dir = join(home_dir, "Scripts")
     if is_jython:
         lib_dir = join(home_dir, "Lib")
         inc_dir = join(home_dir, "Include")
@@ -1156,8 +1162,12 @@
     """ copy tcl/tk libraries on Windows (issue #93) """
     for libversion in "8.5", "8.6":
         for libname in "tcl", "tk":
-            srcdir = join(src, "tcl", libname + libversion)
-            destdir = join(dest, "tcl", libname + libversion)
+            if is_mingw:
+                srcdir = join(src, "lib", libname + libversion)
+                destdir = join(dest, "lib", libname + libversion)
+            else:
+                srcdir = join(src, "tcl", libname + libversion)
+                destdir = join(dest, "tcl", libname + libversion)
             # Only copy the dirs from the above combinations that exist
             if os.path.exists(srcdir) and not os.path.exists(destdir):
                 copyfileordir(srcdir, destdir, symlink)
@@ -1197,7 +1207,7 @@
     mkdir(lib_dir)
     fix_lib64(lib_dir, symlink)
     stdlib_dirs = [os.path.dirname(os.__file__)]
-    if is_win:
+    if is_win and not is_mingw:
         stdlib_dirs.append(join(os.path.dirname(stdlib_dirs[0]), "DLLs"))
     elif is_darwin:
         stdlib_dirs.append(join(stdlib_dirs[0], "site-packages"))
@@ -1238,7 +1248,7 @@
     if not site_packages:
         writefile(site_packages_filename, "")
 
-    if is_pypy or is_win:
+    if (is_pypy or is_win) and not is_mingw:
         stdinc_dir = join(prefix, "include")
     else:
         stdinc_dir = join(prefix, "include", py_version + abiflags)
@@ -1263,7 +1273,7 @@
 
     # pypy never uses exec_prefix, just ignore it
     if sys.exec_prefix != prefix and not is_pypy:
-        if is_win:
+        if is_win and not is_mingw:
             exec_dir = join(sys.exec_prefix, "lib")
         elif is_jython:
             exec_dir = join(sys.exec_prefix, "Lib")
@@ -1338,10 +1348,16 @@
                 py_executable_dlls = [
                     ("python%s.dll" % (sys.version_info[0]), "python%s_d.dll" % (sys.version_info[0])),
                     (
+                        "libpython{}.{}{}.dll".format(sys.version_info[0], sys.version_info[1], sys.abiflags),
+                        "libpython{}.{}{}_d.dll".format(sys.version_info[0], sys.version_info[1], sys.abiflags),
+                    ),
+                    (
                         "python{}{}.dll".format(sys.version_info[0], sys.version_info[1]),
                         "python{}{}_d.dll".format(sys.version_info[0], sys.version_info[1]),
                     ),
                 ]
+                if is_mingw:
+                    py_executable_dlls += [ ("libwinpthread-1.dll", "libwinpthread-1d.dll"), ]
 
             for py_executable_dll, py_executable_dll_d in py_executable_dlls:
                 pythondll = os.path.join(os.path.dirname(sys.executable), py_executable_dll)
@@ -1365,8 +1381,15 @@
             copyfile(py_executable, python_executable, symlink)
 
             if is_win:
-                for name in ["libexpat.dll", "libeay32.dll", "ssleay32.dll", "sqlite3.dll", "tcl85.dll", "tk85.dll"]:
-                    src = join(prefix, name)
+                if is_mingw:
+                    dllstocopy = ["libexpat-1.dll", "libcrypto-1_1.dll", "libssl-1_1.dll", "libsqlite3-0.dll", "tcl86.dll", "tk86.dll"]
+                else:
+                    dllstocopy = ["libexpat.dll", "libeay32.dll", "ssleay32.dll", "sqlite3.dll", "tcl85.dll", "tk85.dll"]
+                for name in dllstocopy:
+                    if is_mingw:
+                        src = join(prefix + "\\bin", name)
+                    else:
+                        src = join(prefix, name)
                     if os.path.exists(src):
                         copyfile(src, join(bin_dir, name), symlink)