title: Can't install MinGW for Clion
body: <p>Recently I installed Clion, but couldn't compile even "Hello World" application. 
  I install MinGW compiller separately, but when I try to compile "Hello world" app I have next errors:</p>
  
  <pre><code>In file included from c:\mingw\include\wchar.h:45:0,
                   from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\cwchar:44,
                   from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\bits\postypes.h:40,
                   from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\iosfwd:40,
                   from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\ios:38,
                   from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\ostream:38,
                   from c:\mingw\lib\gcc\mingw32\4.8.1\include\c++\iostream:39,
                   from C:\Users\Alexandr\ClionProjects\untitled2\main.cpp:1:
  c:\mingw\include\wctype.h:67:1: error: '_CRTIMP' does not name a type
   _CRTIMP int __cdecl __MINGW_NOTHROW iswalnum(wint_t);
   ^
  ...........
   ^
  c:\mingw\include\wctype.h:76:1: error: '_CRTIMP' does not name a type
   _CRTIMP int __cdecl __MINGW_NOTHROW iswprint(wint_t);
   ^
  c:\mingw\include\wctype.h:77:1: error: '_CRTIMP' does not name a type
   _CRTIMP int __cdecl __MINGW_NOTHROW iswpunct(wint_t);
   ^
  c:\mingw\include\wctype.h:80:1: error: '_CRTIMP' does not name a type
   _CRTIMP int __cdecl __MINGW_NOTHROW iswxdigit(wint_t);
   ^
  c:\mingw\include\wctype.h:84:29: error: expected initializer before 'iswblank'
   int __cdecl __MINGW_NOTHROW iswblank (wint_t);
                               ^
  c:\mingw\include\wctype.h:90:1: error: '_CRTIMP' does not name a type
   _CRTIMP wint_t __cdecl __MINGW_NOTHROW towlower (wint_t);
   ^
  c:\mingw\include\wctype.h:91:1: error: '_CRTIMP' does not name a type
   _CRTIMP wint_t __cdecl __MINGW_NOTHROW towupper (wint_t);
   ^
  c:\mingw\include\wctype.h:93:1: error: '_CRTIMP' does not name a type
   _CRTIMP int __cdecl __MINGW_NOTHROW isleadbyte (int);
   ^
  c:\mingw\include\wctype.h:157:33: error: expected initializer before 'towctrans'
   wint_t __cdecl __MINGW_NOTHROW  towctrans(wint_t, wctrans_t);
                                   ^
  c:\mingw\include\wctype.h:158:35: error: expected initializer before 'wctrans'
   wctrans_t __cdecl __MINGW_NOTHROW wctrans(const char*);
                                     ^
  c:\mingw\include\wctype.h:159:34: error: expected initializer before 'wctype'
   wctype_t __cdecl __MINGW_NOTHROW wctype(const char*);
  </code></pre>
  
  <p>How can I fix it?</p>