MinGW 32-bit, GCC 8.1.0, Windows 10 32-bit
Qt5.6.2
For Windows XP

SET PATH=C:\Qt\Tools\mingw810_32\bin;C:\Qt\BUILD\qt-everywhere-opensource-src-5.6.2\qtbase\bin;%PATH%

..\qt-everywhere-opensource-src-5.6.2\configure.bat -release -prefix "C:\Qt\5.6.2\mingw810_32" -opensource -confirm-license -make libs -nomake examples -nomake tests -make tools -skip qtwebengine -platform win32-g++ -opengl desktop

mingw32-make
mingw32-make install