Even after: https://cgit.freedesktop.org/libreoffice/core/commit/?id=4a8caa37fe83c389f4fd43219e8ea0f21f03c6fe With the 64-bit build, I'm still getting the following error: [build CXX] vcl/source/filter/ixbm/xbmread.cxx [build CXX] vcl/source/filter/ixpm/xpmread.cxx E/vcl/source/filter/igif/gifread.cxx(251): error C2220: warning treated as error - no 'object' file generated E/vcl/source/filter/igif/gifread.cxx(251): warning C4334: '<<': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?) E/vcl/source/filter/igif/gifread.cxx(462): warning C4334: '<<': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?) [build CXX] vcl/source/filter/jpeg/Exif.cxx [build CXX] vcl/source/filter/jpeg/jpeg.cxx E/solenv/gbuild/LinkTarget.mk:189: recipe for target 'E/workdir/CxxObject/vcl/source/filter/igif/gifread.o' failed make[1]: *** [E/workdir/CxxObject/vcl/source/filter/igif/gifread.o] Error 2 make[1]: *** Waiting for unfinished jobs.... Makefile:257: recipe for target 'build' failed make: *** [build] Error 2 -- View this message in context: http://nabble.documentfoundation.org/C2220-warning-treated-as-error-64-bit-MSVC-2015-tp4184053p4184112.html Sent from the Dev mailing list archive at Nabble.com.