diff --git a/CMakeLists.txt b/CMakeLists.txt
index 730e4a8..51d75ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,10 +2,6 @@ cmake_minimum_required(VERSION 3.0.0 FATAL_ERROR)
 
 project (winflexbison)
 
-if(NOT MSVC)
-   message( FATAL_ERROR "Visual Studio Build supported only" )
-endif()
-
 add_definitions(-D_CRT_SECURE_NO_WARNINGS)
 
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
diff --git a/common/m4/lib/clean-temp.h b/common/m4/lib/clean-temp.h
index 96a51af..0dfbc15 100644
--- a/common/m4/lib/clean-temp.h
+++ b/common/m4/lib/clean-temp.h
@@ -107,7 +107,9 @@ extern int cleanup_temp_dir_contents (struct temp_dir *dir);
    Return 0 upon success, or -1 if there was some problem.  */
 extern int cleanup_temp_dir (struct temp_dir *dir);
 
+#ifndef __MINGW32__
 typedef int mode_t;
+#endif
 
 /* Open a temporary file in a temporary directory.
    Registers the resulting file descriptor to be closed.  */
diff --git a/common/misc/gethrxtime.c b/common/misc/gethrxtime.c
index 1bbc09f..1220084 100644
--- a/common/misc/gethrxtime.c
+++ b/common/misc/gethrxtime.c
@@ -18,6 +18,10 @@
 /* Written by Paul Eggert.  */
 
 #include <config.h>
+#ifdef __MINGW32__
+#include <Windows.h>
+#include <stdint.h>
+#endif
 
 #define GETHRXTIME_INLINE _GL_EXTERN_INLINE
 #include "gethrxtime.h"
@@ -63,9 +67,18 @@ gethrxtime (void)
      clock that might jump backwards, since it's the best we can do.  */
   {
     struct timespec ts;
-	//gettime(&ts);
-	timespec_get(&ts, TIME_UTC);
+    #ifndef __MINGW32__
+    //gettime(&ts);
+    timespec_get(&ts, TIME_UTC);
     return xtime_make (ts.tv_sec, ts.tv_nsec);
+    #else
+    uint64_t t; 
+    GetSystemTimeAsFileTime((LPFILETIME)&t);
+    enum {
+      hundredsOfNanosecondsInASecond = 10000000
+    };
+    return xtime_make (t / hundredsOfNanosecondsInASecond, t % hundredsOfNanosecondsInASecond);
+    #endif
   }
 #  endif
 # endif