This fixes rerunning configure in a tree which already has an inplace
directory. Edward Z Yang ran into this; I guess whether it actually
fails depends on details of your installation, or we'd have run into
it sooner.
then
AC_MSG_NOTICE([Making in-tree mingw tree])
rm -rf inplace/mingw
then
AC_MSG_NOTICE([Making in-tree mingw tree])
rm -rf inplace/mingw
+ test -d inplace || mkdir inplace
mkdir inplace/mingw
(
cd inplace/mingw &&
mkdir inplace/mingw
(
cd inplace/mingw &&