Hi all, I am trying to build boost_1_57 on Windows7 with MinGW64 (tried gcc 4.9 and 4.9.2). Compiling works fine but gcc.archive fails with: gcc.archive bin.v2\libs\atomic\build\gcc\debug\address-model-64\link-static\threading-multi\libboost_atomic-gcc-mt-d-1_57.a '"C:\mingw-w64\mingw64\bin"' is not recognized as an internal or external command, operable program or batch file. '"C:\mingw-w64\mingw64\bin"' is not recognized as an internal or external command, operable program or batch file. It does that on every gcc.archive operation. I read that this can be caused when using a path with spaces inside, which is not the case here. I did not found any other information and I am stuck right now. Full console output can be found at: http://pastebin.com/bWP0WHAA used commands were:

bootstrap.bat mingw b2 --prefix=C:/Boost toolset=gcc address-model=64 install --debug-configuration >> boost.log

Thanks in advance, any help would be appreciated. Cheers, Jan