------- Comment #44 from boris at kolpackov dot net 2010-09-02 08:23 -------
I just ran into the same issue building (native) mingw32 GCC 4.5.1 using a
x86-64 to mingw32 cross compiler. Adding -nostdinc++ to PCHFLAGS fixed this for
me as well.
I also would like to point out that when building in this configuration the
target libraries (libgcc, libstc++) are built using the cross-compiler. Since
these libraries are internal to GCC (and can theoretically track the GCC
version), I think it is reasonable to expect that the cross and native
compilers are the exact same version of GCC. Using different versions in this
setup is just asking for trouble.