title: How i can solve QMYSQL driver issues compiles with MiniGW64 and MVSC2017?
body: <p>I installed Qt 5.14.2 open source and i haven't obvyously QMYSQL driver.
  I installed a database Mariadb 10.3 32 bit for my test.
  So i followed instructions to compile it. I have two compiler : MinGw32/64 bit and MVSC2017.
  With MinGw32 all it was ok.
  With MinGW64 it was ok but when i build my QT app i had these messages:</p>
  
  <pre><code>C:/Qt/Tools/mingw730_64/bin/../lib/gcc/x86_64-w64-mingw32/7.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible C:\Program Files (x86)\MariaDB 10.3\lib\mysql-connector-c-6.1.11-win32\lib/libmysql.lib when searching for -llibmysql
  C:/Qt/Tools/mingw730_64/bin/../lib/gcc/x86_64-w64-mingw32/7.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible C:\Program Files (x86)\MariaDB 10.3\lib\mysql-connector-c-6.1.11-win32\lib/libmysql.dll when searching for -llibmysql
  </code></pre>
  
  <p>With MSVC2017 when i begin my building from Console it wrote:</p>
  
  <pre><code>Project ERROR: Cannot run compiler 'cl'. Output:
  ===================
  ===================
  Maybe you forgot to setup the environment?
  </code></pre>
  
  <p>I tried with MYSQL CONNECTOR C 6.1(32/64) and 8.0(64) with same results.
  I found a Git Repository with all version compiled but i'd like to understand these issues to solve it in my future.</p>