c++/8477: autoconf script chooses wrong value for gcc_gxx_include_path

[bangerth@dealii.org]

Synopsis: autoconf script chooses wrong value for gcc_gxx_include_path

State-Changed-From-To: open->feedback
State-Changed-By: bangerth
State-Changed-When: Tue Jan  7 18:42:19 2003
State-Changed-Why:
    Phil has already asked for feedback, so let's reflect this in
    the state of the report.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8477