------- Comment #5 from rwild at gcc dot gnu dot org 2009-08-14 12:43 ------- Well in this case it has nothing to do with cpp, if you look at the respective config.log file you see that earlier some in-tree g++ from an earlier stage, /home/lucier/programs/gcc/objdirs/mainline/./prev-gcc/g++ is not found because it has not been built, thus the build chooses an installed g++. The real error is that the toplevel fails to enable building this g++ with your --enable-languages=c being set. All the rest is followup failure.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40950
