GCC: fix detection of Mingw prefix in MXE

The toolchain paths in MXE are of the form

    $MXE_PATH/usr/bin/x86_64-w64-mingw32.shared-g++

so we should not assume that what follows the dot is an extension that
needs to be stripped (like QFileInfo::completeBaseName() does). Instead,
only strip the know executable extensions.

Change-Id: I51040d65e372ef3152ddd9229dd33011661c2b46
Reviewed-by: Ivan Komissarov <ABBAPOH@gmail.com>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Richard Weickelt <richard@weickelt.de>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>

0 files changed, 0 insertions, 0 deletions