[Bug driver/48306] [4.4/4.5/4.6/4.7 Regression] presence of gcc subdir with . in PATH causes breakdown

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48306

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-12-19 19:53:43 UTC ---
Created attachment 26146
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26146
gcc47-pr48306.patch

Not sure if this case is something we need to slow the driver down for, but if
yes, this completely untested patch should do that.  I've also fixed a problem
where we IMHO can overflow the alloca returned buffer on cygwin or wherever
HOST_EXECUTABLE_SUFFIX is used, though have no access to such a system to test
that.