Dunno if i should report it or not. I successfully bootstrapped gcc 4.3.0 under mingw.
Env : MinGW on WinXP SP2 GCC 4.3.0-tdm-2 with sjlj exceptions Standard MinGW installation apart that Output from the built gcc -v : Using built-in specs. Target: i686-pc-mingw32 Configured with: ./gcc-4.3.0/configure --prefix=/mingw --enable-bootstrap --target=i686-pc-mingw32 --with-local-prefix=/mingw --program-prefix= --with-as=/mingw/bin/as.exe --with-ld=/mingw/bin/ld.exe --with-gcc --with-gnu-ld --with-gnu-as --enable-languages=c,c++,objc,fortran --disable-nls --disable-win32-registry --disable-werror --enable-sjlj-exceptions --enable-threads=win32 --disable-symvers --disable-libstdcxx-pch --enable-version-specific-runtime-libs --enable-cxx-flags='-fno-function-sections -fno-data-sections' --enable-fully-dynamic-string --enable-libgomp --enable-checking=release Thread model: win32 gcc version 4.3.0 (GCC) Note : I had to copy include files and /bin directory to a temporary /prefix/{target}/ directory because libgcc didn't configured otherwise. Without this configure was rambling about the sanity of my build environment... Acknowledgment : I took part of the building instructions from scripts used for the tdm gcc cross-build. -- Jonathan Blanchard