[Bug bootstrap/89494] Bootstrap error when using GCC 4.2.1

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89494

--- Comment #8 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The crash is while compiling C+ code, and your CXXFLAGS still contains -O2:

"CXXFLAGS=-g -O2 -pipe   -DLIBICONV_PLUG"

Try setting CXXFLAGS_FOR_TARGET.