id summary reporter owner description type status milestone component version severity resolution keywords cc 11019 Error while building 1.57 with MinGW4.7.1 anonymous " I'm trying to build Boost 1.57 with GCC 4.7.1 bundled with CodeBlocks on Win7 64b. I did this : mkdir c:\boost\build cd c:\boost\tools\build\v2 bootstrap.bat gcc b2 install --prefix=C:\boost\build set PATH=%PATH%;C:\boost\build\bin cd c:\boost b2 --build-dir=C:\boost\build toolset=gcc --build-type=complete And I get this : error: Name clash for 'libboost_exception-mgw47-mt-1_57.a' error: Tried to build the target twice, with property sets having error: these incompabile properties: error: - none error: - -shared-libgcc -shared-libstdc++ error: Please make sure to have consistent requirements for these error: properties everywhere in your project, especially for install error: targets. Did I miss anything ? I haven't found anything on google / boost bug database." Bugs new To Be Determined Building Boost Boost 1.57.0 Problem MinGW